COP31 concludes with agreed text on finance, mitigation, adaptation, and just transition by 20 November 2026.

Question

Six frontier AI models put this at 67% by 10 Dec 2026. Full reasoning from every model.

WillHappen.ai · Accepted Answer

67% — the median of 6 frontier models, resolving by 2026-12-10.

Answer

Gemini (Google): 22% — UNFCCC consensus across all four tracks almost never finishes by the scheduled Friday deadline without extending into weekend overtime. Every COP since COP21 has overrun its official Friday conclusion, routinely pushing final plenary adoptions into Saturday or Sunday. Finance and mitigation texts consistently stall until the final hours over North-South funding allocations and fossil fuel language. Odds rise past 60% only if the presidency forces early clean text drafts without square brackets by Wednesday of the second week.

Answer

Claude (Anthropic): 62% — Hinges on whether overtime negotiations produce a consensus package covering all four tracks before formal closure. COPs almost always overrun their deadline but still end with some agreed text across major tracks, as seen at COP26-COP29. Requiring consensus on finance, mitigation, adaptation, AND just transition simultaneously raises bar versus past COPs where some tracks were weaker or punted. Watch whether finance remains the sticking point as it did at COP29, which could force a weaker or delayed outcome text.

Answer

GPT (OpenAI): 82% — The decisive variable is whether finance and mitigation can be packaged without a last-minute North–South walkout. COPs usually adopt a closing decision: COP28 and COP29 both reached consensus despite late disputes over fossil fuels and finance. Türkiye’s presidency and the UNFCCC secretariat have ten days to broker language acceptable to nearly 200 parties before 20 November. Odds fall if major developing blocs reject finance wording or mitigation language; a late presidency package would raise them.

Answer

Grok (xAI): 22% — Whether all four tracks reach gavelled consensus before the scheduled 20 Nov close rather than overtime. Antalya presidency must produce and gavel texts on finance, mitigation, adaptation and just transition by 20 Nov; recent COPs 26-29 all overran 1-2 days. Four simultaneous tracks sit well below the base rate of a single cover decision finishing on time. A US-China or major-finance breakthrough by 15 Nov would be the clearest upward revision.

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DeepSeek (DeepSeek): 71% — Whether Antalya's presidency can gavel a four-track package before the 20 November close, as every recent COP has. COP decisions require consensus of ~198 parties, and finance text (NCQG quantum) has been the recurring blocker since Baku 2024. Antalya's agenda was pre-loaded with a finance mandate, so a package deal landing in the final 48 hours is the historical norm, not the exception. The 10-day gap between close and resolution date gives cover for a gaveled package even if one track (likely mitigation) is watered down.

Answer

Qwen (Alibaba): 84% — COPs have never failed to produce a comprehensive outcome document; the risk is a single-track collapse, not total failure. Every COP since Paris (21 through 29) has closed with consensus text spanning the major tracks, even when overrunning by 1-2 days. The just transition track is the newest and least institutionalized, making it the most likely single point of failure if a bloc objects to language. A US withdrawal or obstruction under a hostile administration would be the single development most likely to drop this below 70, but even COP29's finance deadlock…

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