UN scientists and government officials agree on the AR7 assessment report timeline at the Addis Ababa meeting ending 16 October 2026.
The IPCC has struggled to reconcile the production cycle for its Seventh Assessment Report. A formal consensus timeline in the meeting's concluding decision by 16 October 2026 settles this.
Across 6 frontier models answering independently, the panel leans yes: the median is 65%.
They do not agree: GPT puts it at 72% and Gemini at 12%, 60 points apart. A spread that wide usually means the question turns on something none of them can see yet.
Nothing is settled until 14 Oct 2026, when the outcome is checked against sources and every number above gets a permanent score.
What each one said
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GPTOpenAI
It hinges on whether the Addis Ababa plenary can bridge the remaining AR7 scheduling dispute before adjournment.
- IPCC member governments and bureau scientists must adopt text by consensus during the 7–16 October session.
- IPCC assessment-cycle decisions usually emerge from plenary bargaining, and a scheduled decision meeting strongly raises the base rate.
- A late fight over report release dates, synthesis timing, or resources could defer agreement; a circulated compromise would raise confidence.
72% -
GrokxAI
IPCC-64 closing decision in Addis Ababa locks a consensus AR7 production calendar.
- Plenaries almost never adjourn without a decision text; remaining fight is only 2028 vs 2029 SYR date.
- Bureau and governments must fix dates before WG scoping can start; postponement would be first since AR5.
- A late EU-US split on 1.5 °C alignment would collapse the deal.
72% -
DeepSeekDeepSeek
Whether the Addis Ababa plenary closes with a formal AR7 timeline decision rather than deferring it.
- The IPCC's 62nd Session in Addis Ababa (Oct 2026) is the venue where the Panel must formally adopt the AR7 scoping and schedule; the draft decision text is already on…
- Precedent: AR6's cycle was agreed at the 41st Session in Nairobi (2015) and AR7's outline was already adopted at the 60th Session in Istanbul (Jan 2024), so the…
- The main risk is a procedural hold-up or a push to defer the decision to a later session, which would break the 16 October deadline; a formal decision by the closing…
72% -
ClaudeAnthropic
Hinges on whether IPCC plenary in Addis Ababa reaches consensus decision text on AR7 timing before closing.
- IPCC plenaries almost always conclude with some approved decision despite late-night haggling, favoring eventual agreement.
- Prior sessions already delayed AR7 timeline decisions repeatedly, showing real disagreement over synthesis report timing and WG order.
- Resolution window closes 2026-10-14, two days before the meeting's actual end on 16 October, risking a timing mismatch for resolution.
58% -
QwenAlibaba
IPCC-62 in Addis Ababa must reach consensus on AR7 scoping and timeline; consensus is the norm but AR7 has been unusually contentious.
- IPCC plenary sessions have historically reached consensus on major decisions, but AR7's scope (single vs. multiple reports, timing) has split developed and developing…
- The meeting runs to 16 Oct and resolves by 14 Oct, leaving only days for final text; if a draft decision is already on the table, consensus is likely, but if it's still…
- A key swing factor: whether the G77/China bloc accepts a compressed timeline; if they push for a later completion date to allow more developing-country author…
52% -
GeminiGoogle
IPCC plenary decisions on contentious scheduling resolve during closing sessions, making approval two days before adjournment improbable.
- Developing and developed blocs remain sharply split over compressing the AR7 cycle to align with the 2028 Global Stocktake.
- IPCC plenary consensus packages are almost invariably gavelled during final-night overtime rather than mid-meeting by October 14.
- A formal compromise text published and adopted prior to October 14 would require unprecedented early procedural harmony.
12%
6 of 6 models answered · 60 points between the highest and lowest. None was shown the market price.
Question sourced from a news sweep on 7 Oct 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.