Year-end 2026 global temperature data confirms the streak of exceptional global temperatures projected by the WMO.
The WMO projected exceptional global heat would extend through 2026. Verification rests on consolidated global temperature datasets published at year-end.
Across 6 frontier models answering independently, the panel treats this as close to settled: the median is 85%.
They broadly agree, 27 points between GPT at 89% and Claude at 62%.
Nothing is settled until 8 Feb 2027, when the outcome is checked against sources and every number above gets a permanent score.
What each one said
-
GPTOpenAI
Absent a major volcanic cooling event, the accumulated greenhouse-gas forcing makes another exceptional 2026 highly likely.
- WMO’s 2026 outlook and monthly observations through October leave only November–December and dataset consolidation outstanding.
- Recent years have repeatedly set or neared records; one cooler year would not end an “exceptional” multi-year streak.
- A Pinatubo-scale eruption or an abrupt late-year cooling anomaly would be the clearest reason to cut this estimate.
89% -
QwenAlibaba
Structural warming is so strong that even La Niña years now land in the top 5, making 'exceptional' nearly guaranteed.
- 2023 and 2024 both set records; 2025 is tracking top-3, so the WMO's 'exceptional streak' framing has a very low bar to clear for 2026.
- No major volcanic eruption is currently injecting stratospheric aerosols, removing the one natural mechanism that could suppress temperatures below the exceptional…
- Would revise down only if a Pinatubo-scale eruption occurred before mid-2026, which has no current precursor signal.
89% -
DeepSeekDeepSeek
Whether 2026 lands among the hottest years on record, which the WMO's projection effectively requires.
- WMO's May 2026 update projected 2026 as likely among the top 3 warmest years, with a 80%+ chance of exceeding 1.4°C above pre-industrial.
- Jan-Oct 2026 monthly data from NOAA, NASA, and Copernicus already show anomalies consistent with that range, and the remaining two months would need an implausible…
- The main risk is a definitional mismatch: if 'exceptional' is read as a new annual record, La Niña cooling in late 2026 could keep 2026 below 2024, which would flip the…
88% -
GeminiGoogle
Resolution turns on whether 2026 finishes within the top tier of warmest years across major datasets like ERA5 and GISTEMP.
- By November 2026, ten months of observations already anchor the annual mean, leaving minimal room for an unexpected plunge.
- WMO definition of an exceptional streak typically requires 2026 to remain among the top 3 to 5 warmest years on record.
- A rapid transition to a deep La Niña would be the only mechanism capable of cooling the annual global average below the threshold.
82% -
GrokxAI
2026 annual mean staying in the post-2023 exceptional cluster once remaining months are in.
- Copernicus/NASA/NOAA YTD through October 2026 already published; Nov-Dec rarely reverse a ranking by several tenths of a degree.
- WMO May 2025 outlook assigned high odds the 2023-26 run would remain exceptional; 2023-25 already did so.
- A late-year La Niña strong enough to pull 2026 below the cluster is the main remaining swing factor.
78% -
ClaudeAnthropic
Hinges on whether 2026 lands among the warmest years on record per WMO/Copernicus/NOAA data released by early Feb 2027.
- WMO's multi-year outlooks have consistently verified since 2015-2024 were each in the warmest-on-record cluster, supporting a high base rate.
- La Niña conditions through 2025-26 have modestly cooled global means versus the 2023-24 El Niño peak, creating some ambiguity in 'exceptional' framing.
- Major datasets (Copernicus, NOAA, WMO consolidated report) typically publish by mid-January, so timing for Feb 8 resolution is comfortable.
62%
6 of 6 models answered · 27 points between the highest and lowest. None was shown the market price.
Question sourced from a news sweep on 10 Nov 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.