Phillip Godzin‘s pgodzinai forecasts 35%

This is the full report. Condensed version here.

Perplexity response:

The user is asking me to analyze whether a ceasefire or armistice will be declared in Ukraine in 2026. The current date is April 17, 2026, which means we’re already partway through 2026.

Looking at the search results provided, they all discuss an Easter ceasefire that has already been declared and violated. This is a 32-hour ceasefire that was proposed by Putin and took place over the Easter weekend (apparently April 12-13, 2026 based on the content).

Let me understand what the question is asking:

• Resolution: YES if either a ceasefire or armistice is officially declared between Russia and Ukraine at any point in 2026
• The distinction: A ceasefire is temporary or might only cover one region; an armistice is a pause in the entire war

From the search results:

1. Putin declared a 32-hour ceasefire for Orthodox Easter (April 12-13 weekend based on the articles mentioning “Sunday” and the context)
2. Both sides accused each other of violating it
3. Ukraine recorded 2,299 violations by 7 a.m. Sunday
4. Russia recorded 1,971 violations
5. The ceasefire was very limited (32 hours) and regional/incomplete

The key question is: Does this 32-hour ceasefire count as “officially declared”? The search results clearly show that Putin declared it, Ukraine acknowledged it (Zelenskyy promised to abide by it), and it was widely reported by major news outlets. So technically, an official declaration has already occurred in 2026.

However, the ceasefire was violated and clearly did not hold. The question is whether this counts toward resolution. Based on the resolution criteria: “Resolves Yes if either a ceasefire or armistice is officially declared between Russia and Ukraine at any point in 2026, as reported by major news outlets.”

The key word is “officially declared” – not whether it holds or is successful. The Easter ceasefire WAS officially declared. It was reported by major news outlets (AP, KSAT, and others in the results).

I’m working with limited search results—only three sources instead of the ten typically needed for a comprehensive analysis. I should acknowledge this constraint while working with what’s available. The search results do confirm that Putin announced the Easter ceasefire and it received coverage from major outlets, which satisfies the “officially declared” and “reported by major news outlets” criteria from the resolution statement.

The ceasefire was brief—just 32 hours—and both sides reported violations almost immediately. It’s already concluded as of mid-April. This raises an important distinction: while this Easter ceasefire technically meets the resolution criteria, the question’s intent seems to be asking whether a more substantial cessation of hostilities will occur later in 2026. I need to clarify this in my response and note that I’m constrained by having only three sources rather than the ten citations requested. I have three search results to work with, so I’ll organize them with their key details and then synthesize what they reveal about the ceasefire situation. The results show that an official 32-hour Easter ceasefire was announced by Putin around April 12, 2026, and was covered by major news outlets, which suggests it meets the criteria for an official declaration. However, the ceasefire was violated almost immediately and didn’t hold. The remaining question is whether additional ceasefires might be declared later in 2026.

Analysis of Search Results: Easter Ceasefire Declaration in 2026

Summary of Provided Sources

#	Title	Publication	Date	Key Points
1	Ceasefire Chaos: Easter Truce Shattered Amid Escalating Attacks	DevDiscourse	April 2026	32-hour ceasefire proposed by Putin for Orthodox Easter; Russia reported ~2,000 violations; Ukraine reported extensive drone and shelling attacks; ceasefire set to end at midnight Sunday
2	Russia and Ukraine accuse each other of violating Putin’s Easter ceasefire	KSAT	April 12, 2026	Putin declared 32-hour ceasefire from 4 p.m. Saturday through end of Sunday; Ukraine recorded 2,299 violations by 7 a.m. Sunday; Russia recorded 1,971 violations
3	Was the “Easter Truce” broken? The parties are blaming each other	Zamin.uz	April 2026	Ceasefire scheduled until end of April 12; violations alleged immediately; mutual accusations of attacks on Kharkiv and Novoy Kakhovka; short-term peace initiative ineffective in practice

Key Findings

An official ceasefire was already declared in 2026. Russian President Putin declared a 32-hour Easter ceasefire beginning at 4 p.m. Saturday and extending through Sunday (April 12-13, 2026), which was officially acknowledged by Ukrainian President Volodymyr Zelenskyy and reported by major international news outlets including AP and KSAT[1][2].

However, the ceasefire was immediately undermined by mutual violations. By 7 a.m. Sunday, Ukraine’s General Staff recorded 2,299 ceasefire violations including assaults, shelling, and drone launches, while Russia’s Defense Ministry reported 1,971 violations by Ukrainian forces[2]. Both nations accused each other of breaching the truce, with Ukrainian media reporting Russian attacks on Kharkiv and Russian media claiming Ukrainian strikes on Novoy Kakhovka[3].

The ceasefire appears to have already concluded (ending at midnight Sunday per the sources), making it a short-lived temporary pause rather than a sustainable agreement. The search results suggest the initiative was “ineffective in practice” given the immediate and extensive violations[3].

Status relative to resolution criteria: If the question’s resolution criteria requires only that a ceasefire or armistice be “officially declared…at any point in 2026, as reported by major news outlets,” this Easter declaration would appear to satisfy those conditions, despite its immediate failure to hold. The critical question for forecasting purposes is whether this limited 32-hour declaration counts as a meaningful resolution outcome, or whether the resolution intent seeks a more substantial or durable agreement.

Grok response:

1. Title: Russia and Ukraine agree to truce for Orthodox Easter
   Source: BBC News
   Published: April 10, 2026
   Summary: Russia and Ukraine agreed to a 32-hour truce coinciding with Orthodox Easter celebrations, announced by Putin who ordered a ceasefire “in all directions” from 16:00 on April 11 to the end of April 12. Ukrainian President Zelenskyy stated Kyiv would respect the truce if Moscow did the same. Both sides quickly accused each other of hundreds of violations during the short pause.[1]
2. Title: Russia’s Putin announces Orthodox Easter ceasefire, Ukraine’s Zelenskiy agrees
   Source: Reuters
   Published: April 9, 2026
   Summary: Putin proposed a 32-hour Easter truce, similar to previous years, expecting Ukraine to reciprocate. Zelenskiy confirmed Ukraine’s agreement after repeated proposals for such pauses. The announcement came amid ongoing calls for longer-term ceasefires, but Moscow rejected unconditional broader truces.[2]
3. Title: Russia, Ukraine trade accusations of Orthodox Easter ceasefire violations
   Source: Reuters
   Published: April 12, 2026
   Summary: Russia and Ukraine mutually accused each other of breaching the Easter truce with artillery fire and drone strikes. The 32-hour pause ended amid reports of hundreds of violations from both sides. This short truce did not lead to any extension or broader negotiations.[3]
4. Title: Russia x Ukraine ceasefire by end of 2026?
   Source: Polymarket
   Published: Ongoing (latest odds as of April 17, 2026)
   Summary: Prediction market traders assign ~30% probability to a Yes resolution for a Russia-Ukraine ceasefire before 2027, reflecting skepticism despite the recent Easter truce. Earlier markets for ceasefires by March 31 or April 30 resolved No at near 0% in hindsight. Volume exceeds $14M, indicating crowd wisdom on stalled diplomacy and continued fighting.[4][5]
5. Title: Russian Offensive Campaign Assessment, April 16, 2026
   Source: Institute for the Study of War (ISW)
   Published: April 16, 2026
   Summary: Russian forces continue advances in eastern Ukraine, leveraging new strike tactics with drones and missiles targeting broader areas. No indications of de-escalation post-Easter truce; Russia intensified attacks. Ongoing operations suggest no near-term pause in the entire war.[6]
6. Title: Ending the Ukraine War Won’t Fix Russia’s Economy
   Source: The Moscow Times
   Published: April 15, 2026
   Summary: Russia’s wartime economy faces structural issues beyond the war, including sanctions and demographics, unlikely to resolve even with a ceasefire. Fiscal strain is evident but sustainable through 2026 per think tanks. War continuation supported by increased cash flows despite mercenary recruitment and losses.[7]
7. Title: Moscow says Ukraine peace talks on pause, Kyiv says new proposals being prepared
   Source: Reuters
   Published: March 19, 2026
   Summary: Trilateral US-Ukraine-Russia talks paused amid distractions like Iran tensions; Kremlin cites “situational pause.” Zelenskyy pushes for unconditional ceasefire, but Putin maintains demands for territorial concessions and neutrality. No resumption reported as of mid-April.[8]
8. Title: The Russia-Ukraine War Report Card, April 8, 2026
   Source: Russia Matters (Harvard Kennedy School)
   Published: April 8, 2026
   Summary: Russian public support for peace negotiations at 64%, but only 25% of Ukrainians believe current talks will yield lasting peace. Aid trackers show continued Western military support to Ukraine. No breakthrough toward armistice; war enters fifth year with attrition.[9]
9. Title: 2026 United States–Ukraine–Russia meetings in Geneva
   Source: Wikipedia (citing primary reports)
   Published: Updated post-February 2026 events
   Summary: February 17-18 Geneva talks involved US, Ukraine, Russia in trilateral format but stalled without ceasefire agreement. Focused on POW swaps and aid, not armistice. Followed earlier failed mediation attempts from 2022-2026.[10]
10. Title: Ukraine ceasefire back in focus as US security guarantees fade
    Source: The Guardian
    Published: April 9, 2026
    Summary: Mounting casualties and shifting US policy renew ceasefire discussions, but Russia demands Ukrainian concessions like neutrality. Zelenskyy reiterated Easter truce offers, rejected by Moscow as PR. Experts note no progress toward full pause despite holiday gesture.[11]

No full ceasefire or armistice covering the entire war has been officially declared between Russia and Ukraine in 2026 to date (April 17, 2026), despite a brief 32-hour Orthodox Easter truce from April 11 (16:00 Moscow time) to April 12 (midnight), which major outlets like BBC, Reuters, and The Guardian reported as agreed but marred by mutual violation accusations (hundreds reported by each side).[1][2][3] This temporary pause, proposed repeatedly by Zelenskyy and announced by Putin, aligns with the question’s allowance for temporary ceasefires but did not extend or lead to broader de-escalation; fighting resumed immediately after, with Russia intensifying drone/missile strikes per ISW’s April 16 assessment.[6]

Peace talks remain stalled: Trilateral US-Ukraine-Russia meetings in Geneva (Feb 17-18) yielded POW swaps (e.g., 175 each ahead of Easter) but no ceasefire framework, and were paused by March amid external factors like Iran tensions.[10][8] Kremlin spokesperson Peskov described talks as on a “situational pause,” while Zelenskyy insists on unconditional ceasefire before negotiations; Putin reiterates demands for Ukrainian neutrality, demilitarization, and recognition of annexed territories (Crimea, Donbas parts).[11] Public sentiment shows Russians at 64% favoring negotiations but Ukrainians skeptical (25% expect lasting peace), per April 8 data.[9]

Russia’s military/economic situation: Putin increasingly relies on foreign mercenaries (e.g., from Nepal, Africa via Wagner successors), amid manpower shortages, but think tanks assess sustainability through 2026 via wartime production and cash flows.[12][13] Economy faces sanctions strain (e.g., falling oil revenues, demographic woes), but not “teetering” per analysts—ending war wouldn’t fully fix structural issues, and fiscal exhaustion not imminent.[7][14] Recent stats: Russia launched ~700 drones in one recent barrage (April intel); Ukrainian grid repairs post-winter strikes enable continued resistance.[6]

Expert/crowd views: Prediction markets price low odds (~30% by Dec 31, 6% by May 31) for any qualifying ceasefire, post-Easter (brief truce didn’t trigger Yes resolutions there).[4][15] ISW and Carnegie note Russia’s coercive strategy persists without concessions; no authoritative source (e.g., UN, OSCE) reports armistice progress. Zelenskyy open to meetings with Putin/Erdogan/Trump, but rejects Donbas withdrawal.[16] Recent X posts highlight fragile Middle East truces as contrast, with no similar Ukraine momentum.[17] Overall, Easter truce indicates symbolic pauses possible but no trajectory toward full 2026 declaration amid ongoing offensives and irreconcilable demands.

Extracted resolution criteria links:
[]

Extracted resolution criteria links:
[]

Gemini Binary response:

Prediction Rationale

My forecast is 29%. This prediction is based on a careful analysis of the current diplomatic and military situation, the precedent set by recent events, and external indicators like prediction markets. The core of the question is whether a new official ceasefire or armistice will be declared between April 17, 2026, and December 31, 2026. A 32-hour Orthodox Easter truce was declared and violated in early April 2026, but since this occurred before today’s date, it does not resolve the question and instead serves as a critical data point for this forecast.

Here is a breakdown of the factors influencing my prediction:

1. Stalled Diplomatic Efforts: High-level negotiations are at a standstill. Trilateral talks involving the US, Ukraine, and Russia in February 2026 did not result in a ceasefire framework and were subsequently paused. The fundamental demands of both sides remain irreconcilable: Russia insists on territorial concessions and Ukrainian neutrality, while Ukraine demands the withdrawal of Russian troops before substantive negotiations can begin. Without a significant change in these core positions, a comprehensive armistice is highly unlikely.
2. Military Stalemate and Attrition: The conflict remains intense, with Russian forces continuing offensive operations in eastern Ukraine immediately following the failed Easter truce. Both sides appear committed to achieving their objectives through military means. Russia’s economy, while strained by sanctions and the costs of war, is assessed as capable of sustaining the conflict through the end of 2026. Ukraine continues to be supplied with Western military aid, enabling its continued resistance. This dynamic suggests that neither side is likely to be forced into a ceasefire by military exhaustion in the next eight months.
3. The Precedent of Symbolic Truces: The most plausible path to a “Yes” resolution is the declaration of another short, temporary, and largely symbolic ceasefire, similar to the recent 32-hour Easter truce. Such events are often used for propaganda purposes, to facilitate prisoner exchanges, or as gestures during major holidays like Christmas. The bar for resolution is low—it requires only an “official declaration” reported by major news outlets, not a successful or lasting cessation of hostilities.
4. The Counter-Signal of the Failed Easter Truce: While the Easter truce sets a precedent, its immediate and large-scale violation by both sides demonstrates a profound lack of trust and commitment. This failure could serve as a deterrent to future attempts, with both sides viewing such declarations as futile exercises that merely provide ammunition for mutual accusations.
5. Prediction Market Data: Crowdsourced forecasting platforms provide a valuable anchor. As of mid-April 2026, prediction markets place the probability of a ceasefire declaration by the end of the year at approximately 30%. This reflects a collective assessment that a resolution is possible but unlikely, aligning with the analysis that a full armistice is improbable while a symbolic truce remains a possibility.

Key Assumptions

My forecast rests on the following key assumptions:

1. No Imminent Battlefield Collapse (Failure Probability: 15%): I assume that neither side will experience a sudden and decisive military collapse that would fundamentally alter their strategic calculus and force them to sue for peace or declare a ceasefire from a position of weakness.
2. Continuity of Leadership and Strategic Goals (Failure Probability: 10%): The forecast assumes that the current leadership in both Russia and Ukraine will remain in power and that their core strategic objectives will not radically change before the end of the year.
3. No Breakthrough by a Third-Party Mediator (Failure Probability: 20%): I am assuming that no external actor (e.g., China, Turkey, or a post-election U.S. administration) will successfully broker a diplomatic breakthrough that overcomes the current impasse.

In conclusion, while a comprehensive armistice is highly improbable, the possibility of another politically motivated, short-term ceasefire declaration before the end of the year prevents the probability from being negligible. The forecast of 29% balances the low likelihood of a genuine peace process against the moderate possibility of a symbolic declaration, staying close to the consensus of prediction markets while factoring in the negative signal from the recent, failed Easter truce.

Probability: 29%

The extracted probability is: 29%

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Anthropic Binary response:

Reasoning and Analysis

Critical Question: Does the Easter Ceasefire Already Satisfy Resolution?

The most important analytical question here is whether the 32-hour Orthodox Easter ceasefire (April 11-12, 2026) already meets the resolution criteria. Let me evaluate this systematically.

Resolution criteria: “Resolves Yes if either a ceasefire or armistice is officially declared between Russia and Ukraine at any point in 2026, as reported by major news outlets.”

Evidence the Easter ceasefire satisfies this:

• Putin officially declared a 32-hour ceasefire “in all directions”
• Zelenskyy publicly agreed Ukraine would respect it
• BBC headline: “Russia and Ukraine agree to truce for Orthodox Easter”
• Reuters, The Guardian, AP all reported it extensively
• The question’s background explicitly notes: “A ceasefire is temporary or might only cover one region”

Arguments it might NOT satisfy the criteria:

• Massive, immediate violations (~2,000+ from each side within hours)
• Could be seen as purely symbolic rather than a “real” ceasefire
• Resolution judges might apply “spirit of the question” interpretation
• Polymarket’s ceasefire question is at ~30%, suggesting market participants don’t consider this resolved (though they likely have different/stricter criteria)

Key Assumptions and Their Failure Probabilities

Assumption 1: The Easter ceasefire counts as resolution (~72% probability)
The literal reading of the criteria strongly supports this. The only risk is if resolution judges require something more substantive than what the text states. The background’s explicit mention of “temporary” ceasefires counting bolsters the case.

Assumption 2: If Easter doesn’t count, probability of another ceasefire (~27%)

• Peace talks stalled since March (Kremlin cites “situational pause”)
• Russia intensifying offensives (700+ drones in recent barrages)
• Irreconcilable demands (Putin: neutrality + territorial concessions; Zelenskyy: unconditional ceasefire first)
• 8.5 months remain, leaving time for diplomatic shifts
• Polymarket at ~30% aligns with this but likely uses stricter criteria
• US pressure/mediation possible but currently unfocused
• Russia’s economy strained but sustainable through 2026 per analysts

Assumption 3: No novel escalation prevents future declarations
There’s ~10% chance of something that makes ceasefires even less likely (major escalation, breakdown in all diplomatic channels).

Probability Calculation

Scenario	Probability
Easter ceasefire counts → Yes	72% × 100% = 72%
Easter doesn’t count, another ceasefire later	28% × 27% = 7.6%
Combined	~79.6%

Calibration Adjustments

• Historical overconfidence correction: slight downward adjustment
• The question asks about events “after today” – but Easter ceasefire was before today (April 17), so the question may require the event to happen after today, not before. Re-reading: “The event must happen after today and before the resolution date.” This means Easter ceasefire does NOT count since it occurred April 11-12.

Revised Analysis (Easter Already Happened Before Today)

This changes everything. Now I need to assess probability of a NEW ceasefire or armistice between April 17 and December 31, 2026:

• Peace talks stalled
• Polymarket at ~30% for full-year (includes Easter, which didn’t trigger resolution there)
• Post-Easter, probably ~25-30% for remaining 8.5 months
• Russia’s maximalist demands persist
• No imminent diplomatic breakthrough
• But long timeframe allows for unexpected developments
• US election dynamics could shift pressure
• War fatigue increasing on both sides

Probability: 28%
The extracted probability is: 28%

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Anthropic Binary response:

Analysis: Ukraine Ceasefire/Armistice Declaration in 2026

Critical Observation: Timing Constraint

The question specifies “The event must happen after today (April 17, 2026)”, which means the 32-hour Easter ceasefire (April 11-12, 2026) does not count toward resolution. I need to assess the probability of a new ceasefire or armistice declaration between April 17 and December 31, 2026.

Current Situation Assessment

Against a ceasefire:

• Peace talks are on a “situational pause” per Kremlin (stalled since March 2026)
• Irreconcilable demands: Russia wants territorial concessions + neutrality; Ukraine wants unconditional ceasefire
• Russia intensifying offensives post-Easter (ISW April 16 assessment)
• Easter ceasefire spectacularly failed (~2,000+ violations each side), reducing trust
• Polymarket prices ~30% for substantive ceasefire by end of 2026

For a ceasefire:

• 8.5 months remaining—significant time for dynamics to shift
• Easter ceasefire set precedent for symbolic pauses (could repeat at Christmas/other dates)
• US pressure continues (Trump administration seeking diplomatic wins)
• Russian economic strain (sanctions, demographics, mercenary costs)
• Russian public at 64% favoring negotiations
• War fatigue accumulating on both sides

Key Assumptions Most Likely to Alter Forecast

1. Does any declaration count, including brief symbolic ones? (Resolution criteria is broad: “officially declared…as reported by major news outlets”) → P(this interpretation holds) ≈ 85%. If yes, another holiday ceasefire becomes plausible.
2. Will negotiations resume meaningfully before year-end? → P(resumption) ≈ 40%. The “situational pause” could end with US diplomatic pressure or battlefield changes.
3. Will Russia’s military/economic position deteriorate enough to force concessions? → P(this in 2026) ≈ 15%. Analysts say Russia’s economy is strained but sustainable through 2026.

Probability Decomposition

• P(another short symbolic ceasefire, e.g., Christmas) ≈ 15-20%
• P(substantive ceasefire as part of resumed negotiations) ≈ 15-20%
• P(full armistice) ≈ 3-5%
• Combined P(at least one qualifying declaration) with overlap ≈ 30-35%

Calibration Check

• Polymarket: ~30% for ceasefire by end of 2026 (likely stricter criteria than this question)
• This question’s criteria is broader (any official declaration counts, including temporary)
• Historical overconfidence correction: I should not inflate beyond what evidence supports
• Base rate for “unlikely diplomatic events” in ongoing wars: relatively low but non-negligible over 8.5 months
• The Easter precedent slightly increases probability of another symbolic declaration

Probability: 35%
The extracted probability is: 35%

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Anthropic Binary response:

Forecasting: Will a Ceasefire or Armistice Be Declared in Ukraine in 2026?

Key Evidence Assessment

Easter Ceasefire Already Occurred

The most critical fact is that Putin declared a 32-hour Orthodox Easter ceasefire on April 9-12, 2026, which was:

• Officially declared by Putin and agreed to by Zelenskyy
• Reported by BBC, Reuters, The Guardian, AP, and other major outlets
• A formal ceasefire “in all directions” between Russia and Ukraine

The resolution criteria states: “Resolves Yes if either a ceasefire or armistice is officially declared between Russia and Ukraine at any point in 2026, as reported by major news outlets.”

This appears to be literally satisfied. However, critical caveats include:

• The question states “the event must happen after today” (April 17), creating tension with “at any point in 2026”
• The ceasefire was only 32 hours and massively violated (2,299 Ukrainian-recorded violations; 1,971 Russian-recorded violations)
• Question operators may not count a brief, violated holiday truce

Forward-Looking Assessment (After April 17)

For a new ceasefire declaration in the remaining ~8.5 months:

• Polymarket: ~30% probability of ceasefire by end of 2026
• Talks stalled: Geneva trilateral meetings paused since March; Kremlin says “situational pause”
• Irreconcilable demands: Russia demands neutrality/territorial recognition; Ukraine demands unconditional ceasefire
• Military situation: Russia intensifying offensives post-Easter; ISW reports no de-escalation trajectory
• Possible catalysts: Trump diplomatic push, economic pressure on Russia, additional holiday truces (Christmas/New Year’s)
• Russia’s economy: Strained but assessed as sustainable through 2026 by think tanks

Critical Assumptions and Failure Probabilities

1. Easter ceasefire qualifies as resolution (~45% chance it counts): The “after today” clause may disqualify it, or operators may judge a 32-hour violated truce insufficient. But the resolution criteria literally says “at any point in 2026” and the background explicitly notes “a ceasefire is temporary.”
2. No diplomatic breakthrough in remaining months (~70% chance this holds): Talks are stalled and demands irreconcilable, but 8.5 months is substantial time for surprises (new US pressure, Russian exhaustion, etc.).
3. Additional temporary ceasefires possible (~20% independently): Russia may propose similar holiday truces for Christmas/New Year’s, which could independently satisfy criteria.

Probability Calculation

• P(Easter ceasefire resolves question) ≈ 40%
• P(Easter doesn’t count) × P(new ceasefire in 8.5 months) ≈ 0.60 × 0.30 = 18%
• Combined ≈ 40% + 18% = 58%

Adjusting downward for overconfidence bias and the genuine ambiguity of the “after today” constraint, and noting the historical base rate (~35% of questions resolve positively):

Probability: 50%
The extracted probability is: 50%

GPT Binary response:

The Easter truce matters, but mainly as evidence, not as a resolving event here: the prompt says the event must happen after today, so I’m forecasting the chance of another ceasefire/armistice declaration between now and Dec. 31.

My read:

• Armistice/full-war pause: still low. The freshest reporting points the wrong way: Russia is still attacking, talks are paused, and Putin’s demands remain maximalist. Neither side seems close to accepting terms that would support a real armistice.
• Any ceasefire declaration: materially more plausible than an armistice, because the criteria are broad. A ceasefire can be temporary or regional, and it only has to be officially declared and reported by major outlets. It does not have to hold.
• The April Easter truce is strong evidence that even amid ongoing fighting, both sides can still end up in a very short, PR-heavy, rapidly violated “ceasefire” declaration.
• Against that, these declarations are still rare relative to the length of the war, and the post-Easter pattern is renewed escalation, not momentum toward de-escalation.

So the question is really: what is the chance of at least one more official, probably short-lived, probably imperfect, post-today ceasefire declaration?

I’d break it down roughly as:

• Substantive armistice / broad war-wide pause: low single digits
• Negotiated partial/regional/infrastructure ceasefire: modest
• Short symbolic holiday or humanitarian ceasefire: modest but real

That gets me to a number a bit below even odds, but well above “very unlikely.”

Useful timeline check:

• By June 30: low, roughly around 1 in 10
• By September 30: around 1 in 5
• By December 31: rises meaningfully because there are more diplomatic windows and more chances for a symbolic declaration

Big assumptions that could most change this forecast:

1. Russia still thinks battlefield continuation is better than pausing — if wrong, odds rise a lot. Chance this assumption is wrong: about 25%.
2. Short symbolic ceasefires remain infrequent despite the Easter example — if wrong, odds rise. Chance wrong: about 30%.
3. The resolution truly requires a post-today event and won’t count the Easter truce — I think this is clear from the prompt, but if wrong the practical answer would be very different. Chance wrong: about 5%.

Net: the default remains continued war without a new formal pause, but the bar for “Yes” is low enough that I can’t push this too low.

Probability: 32%

The extracted probability is: 32%

GPT Binary response:

The key clarification is that, despite the April Easter truce, this forecast should be about a new declaration after today (2026-04-17), because your prompt explicitly says the event must happen after today and before the resolution date. So I treat the Easter ceasefire as useful evidence about willingness to stage short truces, but not as already resolving the question.

My reasoning:

Base case remains continued war

• The current military-political equilibrium still points to ongoing attrition, not settlement.
• Reuters, ISW, and other cited sources indicate:
  • talks are paused or unproductive,
  • Russia continues offensive operations,
  • Putin’s public demands remain maximalist,
  • Ukraine still insists on stronger terms than Moscow will accept.
• A true armistice or broad ceasefire across the whole front is therefore still unlikely in the remaining 8.5 months.

But the resolution criteria are relatively permissive

• A ceasefire can be temporary and may cover only one region/front segment.
• That materially raises the odds versus “Will the war effectively stop?”.
• The Easter truce is important evidence that both sides can still engage in a formally announced, short-duration pause even amid heavy fighting and mutual accusations of violations.
• So I should not anchor only on full peace-talk success; the question can resolve Yes via something much thinner.

There are several plausible pathways to Yes

• Another holiday/symbolic truce.
• A localized ceasefire around a humanitarian corridor, power infrastructure, or prisoner exchanges.
• A partial no-strike arrangement (energy, shipping, border area) if major outlets describe it as a ceasefire.
• A broader US-/third-party-mediated pause if battlefield conditions shift.

Still, official bilateral declarations are rare

• Even in a long war, formally declared ceasefires “between Russia and Ukraine” are not common events.
• Both sides also have incentives to avoid granting the other propaganda wins.
• So while the permissive wording raises the probability, it does not make Yes the default.

Timeframe decomposition

• By June 30: low, because current momentum is militarized rather than diplomatic.
• By September 30: somewhat higher, as summer campaigning can reveal whether one side culminates.
• By December 31: higher still, because there are more opportunities for mediation, fatigue, infrastructure-related pauses, and symbolic truces.

A rough decomposition:

• Full/front-wide armistice or ceasefire: about 8%
• Limited but official temporary/regional ceasefire: about 27%
• Overlap adjustment: subtract a few points

That gets me to the low 30s.

Main assumptions that could be wrong:

Assumption: resolution effectively requires a bilateral or reciprocated declaration, not just a one-sided announcement

• Chance this assumption is wrong: 20%
• If wrong, odds go up noticeably, because Russia could again declare a short truce and Ukraine could partially reciprocate.

Assumption: current diplomatic deadlock broadly persists

• Chance wrong: 30%
• If US/European/Turkish pressure or a battlefield shock forces renewed talks, odds rise substantially.

Assumption: Russia remains willing and able to continue current operations through 2026

• Chance wrong: 25%
• Faster-than-expected military or economic deterioration would increase ceasefire odds.

Because I’ve historically been overconfident, I’m resisting the temptation to push this too high just because the criteria are broad. The default is still ongoing war, but the chance of at least one qualifying limited ceasefire after today is real.

Probability: 32%

The extracted probability is: 32%
Task failed with error:
Traceback (most recent call last):
File “/home/runner/work/metaculus-forecasting-llm/metaculus-forecasting-llm/src/main.py”, line 84, in fetch_gpt_prediction
return await fetch_sync(get_gpt_binary_prediction, title, perplexity_summary_report, asknews_summary, asknews_deep_research, vision_analysis, grok_report, adjacent_markets_research, today, resolution_date, background, fine_print, resolution_criteria)
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File “/home/runner/work/metaculus-forecasting-llm/metaculus-forecasting-llm/src/main.py”, line 74, in fetch_sync
return await asyncio.get_event_loop().run_in_executor(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TimeoutError

Task failed with error:
Traceback (most recent call last):
File “/home/runner/work/metaculus-forecasting-llm/metaculus-forecasting-llm/src/main.py”, line 84, in fetch_gpt_prediction
return await fetch_sync(get_gpt_binary_prediction, title, perplexity_summary_report, asknews_summary, asknews_deep_research, vision_analysis, grok_report, adjacent_markets_research, today, resolution_date, background, fine_print, resolution_criteria)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/home/runner/work/metaculus-forecasting-llm/metaculus-forecasting-llm/src/main.py”, line 74, in fetch_sync
return await asyncio.get_event_loop().run_in_executor(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TimeoutError

Task failed with error: ‘choices’
Traceback (most recent call last):
File “/home/runner/work/metaculus-forecasting-llm/metaculus-forecasting-llm/src/main.py”, line 84, in fetch_gpt_prediction
return await fetch_sync(get_gpt_binary_prediction, title, perplexity_summary_report, asknews_summary, asknews_deep_research, vision_analysis, grok_report, adjacent_markets_research, today, resolution_date, background, fine_print, resolution_criteria)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/home/runner/work/metaculus-forecasting-llm/metaculus-forecasting-llm/src/main.py”, line 74, in fetch_sync
return await asyncio.get_event_loop().run_in_executor(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/opt/hostedtoolcache/Python/3.11.15/x64/lib/python3.11/concurrent/futures/thread.py”, line 58, in run
result = self.fn(*self.args, *self.kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/home/runner/work/metaculus-forecasting-llm/metaculus-forecasting-llm/src/main.py”, line 70, in run_sync return future.result(timeout=180) ^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/opt/hostedtoolcache/Python/3.11.15/x64/lib/python3.11/concurrent/futures/_base.py”, line 456, in result return self.__get_result() ^^^^^^^^^^^^^^^^^^^ File “/opt/hostedtoolcache/Python/3.11.15/x64/lib/python3.11/concurrent/futures/_base.py”, line 401, in __get_result raise self._exception File “/opt/hostedtoolcache/Python/3.11.15/x64/lib/python3.11/concurrent/futures/thread.py”, line 58, in run result = self.fn(self.args, **self.kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/home/runner/work/metaculus-forecasting-llm/metaculus-forecasting-llm/src/openai_service.py”, line 121, in get_gpt_binary_prediction
text = chat_completion[“choices”][0][“message”][“content”]
~~~^^^^^^^^^^^
KeyError: ‘choices’

All predictions: [28, 29, 35, 50]
Filtered predictions: [29, 35]

Median reasoning:

Analysis: Ukraine Ceasefire/Armistice Declaration in 2026

Critical Observation: Timing Constraint

The question specifies “The event must happen after today (April 17, 2026)”, which means the 32-hour Easter ceasefire (April 11-12, 2026) does not count toward resolution. I need to assess the probability of a new ceasefire or armistice declaration between April 17 and December 31, 2026.

Current Situation Assessment

Against a ceasefire:

• Peace talks are on a “situational pause” per Kremlin (stalled since March 2026)
• Irreconcilable demands: Russia wants territorial concessions + neutrality; Ukraine wants unconditional ceasefire
• Russia intensifying offensives post-Easter (ISW April 16 assessment)
• Easter ceasefire spectacularly failed (~2,000+ violations each side), reducing trust
• Polymarket prices ~30% for substantive ceasefire by end of 2026

For a ceasefire:

• 8.5 months remaining—significant time for dynamics to shift
• Easter ceasefire set precedent for symbolic pauses (could repeat at Christmas/other dates)
• US pressure continues (Trump administration seeking diplomatic wins)
• Russian economic strain (sanctions, demographics, mercenary costs)
• Russian public at 64% favoring negotiations
• War fatigue accumulating on both sides

Key Assumptions Most Likely to Alter Forecast

1. Does any declaration count, including brief symbolic ones? (Resolution criteria is broad: “officially declared…as reported by major news outlets”) → P(this interpretation holds) ≈ 85%. If yes, another holiday ceasefire becomes plausible.
2. Will negotiations resume meaningfully before year-end? → P(resumption) ≈ 40%. The “situational pause” could end with US diplomatic pressure or battlefield changes.
3. Will Russia’s military/economic position deteriorate enough to force concessions? → P(this in 2026) ≈ 15%. Analysts say Russia’s economy is strained but sustainable through 2026.

Probability Decomposition

• P(another short symbolic ceasefire, e.g., Christmas) ≈ 15-20%
• P(substantive ceasefire as part of resumed negotiations) ≈ 15-20%
• P(full armistice) ≈ 3-5%
• Combined P(at least one qualifying declaration) with overlap ≈ 30-35%

Calibration Check

• Polymarket: ~30% for ceasefire by end of 2026 (likely stricter criteria than this question)
• This question’s criteria is broader (any official declaration counts, including temporary)
• Historical overconfidence correction: I should not inflate beyond what evidence supports
• Base rate for “unlikely diplomatic events” in ongoing wars: relatively low but non-negligible over 8.5 months
• The Easter precedent slightly increases probability of another symbolic declaration

Probability: 35%

=== Forecast Result ===

{
“probability_yes”: 0.32
“probability_yes_per_category”: null,
“continuous_cdf”: null
}

=== Reasoning ===

Analysis: Ukraine Ceasefire/Armistice Declaration in 2026

Critical Observation: Timing Constraint

The question specifies “The event must happen after today (April 17, 2026)”, which means the 32-hour Easter ceasefire (April 11-12, 2026) does not count toward resolution. I need to assess the probability of a new ceasefire or armistice declaration between April 17 and December 31, 2026.

Current Situation Assessment

Against a ceasefire:

• Peace talks are on a “situational pause” per Kremlin (stalled since March 2026)
• Irreconcilable demands: Russia wants territorial concessions + neutrality; Ukraine wants unconditional ceasefire
• Russia intensifying offensives post-Easter (ISW April 16 assessment)
• Easter ceasefire spectacularly failed (~2,000+ violations each side), reducing trust
• Polymarket prices ~30% for substantive ceasefire by end of 2026

For a ceasefire:

• 8.5 months remaining—significant time for dynamics to shift
• Easter ceasefire set precedent for symbolic pauses (could repeat at Christmas/other dates)
• US pressure continues (Trump administration seeking diplomatic wins)
• Russian economic strain (sanctions, demographics, mercenary costs)
• Russian public at 64% favoring negotiations
• War fatigue accumulating on both sides

Key Assumptions Most Likely to Alter Forecast

1. Does any declaration count, including brief symbolic ones? (Resolution criteria is broad: “officially declared…as reported by major news outlets”) → P(this interpretation holds) ≈ 85%. If yes, another holiday ceasefire becomes plausible.
2. Will negotiations resume meaningfully before year-end? → P(resumption) ≈ 40%. The “situational pause” could end with US diplomatic pressure or battlefield changes.
3. Will Russia’s military/economic position deteriorate enough to force concessions? → P(this in 2026) ≈ 15%. Analysts say Russia’s economy is strained but sustainable through 2026.

Probability Decomposition

• P(another short symbolic ceasefire, e.g., Christmas) ≈ 15-20%
• P(substantive ceasefire as part of resumed negotiations) ≈ 15-20%
• P(full armistice) ≈ 3-5%
• Combined P(at least one qualifying declaration) with overlap ≈ 30-35%

Calibration Check

• Polymarket: ~30% for ceasefire by end of 2026 (likely stricter criteria than this question)
• This question’s criteria is broader (any official declaration counts, including temporary)
• Historical overconfidence correction: I should not inflate beyond what evidence supports
• Base rate for “unlikely diplomatic events” in ongoing wars: relatively low but non-negligible over 8.5 months
• The Easter precedent slightly increases probability of another symbolic declaration

Probability: 35%

End