Ukraine and Russia agree to a formal ceasefire.

Question

Six frontier AI models put this at 19% by 10 Jan 2027. Full reasoning from every model.

WillHappen.ai · Accepted Answer

19% — the median of 6 frontier models, resolving by 2027-01-10.

Answer

Gemini (Google): 19% — Neither side faces the acute military exhaustion or domestic political pressure needed to freeze the line within three months. A 90-day window is far too compressed for the formal verification and territorial compromise a binding ceasefire requires. Russia still believes time favors attrition, while Kyiv cannot accept codified loss of territory without security guarantees. A sudden collapse of US military aid or an abrupt leadership change in Moscow is the only catalyst that could force a truce by January.

Answer

Claude (Anthropic): 27% — Hinges on whether US-brokered pressure forces Putin/Zelensky to sign terms on territory and security guarantees before Jan 2027. Miami talks collapsed early, showing both sides still far apart on core terms like territorial control and security guarantees. Over a 15-month window, war-fatigue and sustained US/EU pressure give meaningfully higher odds than a snapshot base rate of active wars ending in any given year. Key swing factor: a major battlefield shift or a Trump-Putin direct deal could abruptly produce a truce, but absent that, entrenched positions likely persist.

Answer

GPT (OpenAI): 37% — The odds hinge on whether battlefield strain forces Moscow and Kyiv to accept a monitored freeze before 10 January. Both governments must authorize terms, likely via U.S.- or Turkey-backed talks, with fewer than 90 days available. Past Russo-Ukrainian ceasefires repeatedly failed or remained partial; continuing strikes after Miami puts this below an even chance. A verified front-line halt, prisoner deal, or U.S. security package tied to talks would materially raise the outlook.

Answer

Grok (xAI): 18% — Whether Putin and Zelenskyy accept a frozen line before winter logistics lock in. Miami talks collapsed with no resumption date; both still demand maximalist terms on territory and NATO. Similar wars needed months of talks after stalemate; 90-day window and ongoing strikes leave none. Sudden US/China pressure could force it, but none is signaled.

Answer

DeepSeek (DeepSeek): 12% — Both sides still think time favors them on the battlefield, so no truce before winter 2027. Putin has rejected a full ceasefire unless Ukraine cedes Donbas; Zelensky refuses territorial concessions, so the gap is structural, not tactical. The Miami round collapsed early in October 2026 with no follow-up summit scheduled, and US envoys have shifted to bilateral tracks rather than trilateral mediation. Base rate for interstate wars reaching formal ceasefire within ~15 months of active talks is roughly 15-20%, but continued aerial strikes and no agreed monitoring…

Answer

Qwen (Alibaba): 14% — Three months is too short to bridge the gap that just sank the Miami round, absent a shock like leadership change or military collapse. No formal truce has emerged in nearly five years of war; the structural gaps (territory, security guarantees, NATO status) remain unresolved and Miami's failure confirms… Both Putin and Zelensky face domestic constraints that make conceding on core demands costly before a visible military or economic breaking point, which has not yet… A sudden US ultimatum with credible leverage on both sides or a Russian battlefield collapse would be the most likely catalyst to move this above 30%.

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