Will any AI model reach a Chatbot Arena score of at least 1550 by December 31?

As of September 5, 2026, the market gives “Will any AI model reach a Chatbot Arena score of at least 1550 by December 31?” a 81% chance of NO.

YES odds19%
NO odds81%
Volume$51,772
ClosesJanuary 1, 2027

Updated September 5, 2026 · Live data from Polymarket

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About this market

Recent releases from OpenAI's GPT-6 Astra and Anthropic's Claude Fable 5.1 and Mythos 5.1 in early September 2026 highlight accelerating frontier progress, with these models posting gains on agentic benchmarks like Terminal-Bench and ARC-AGI that often correlate with Chatbot Arena or Text Arena Elo lifts. Anthropic variants currently lead overall leaderboards near 1505-1508 Elo, but OpenAI and Google DeepMind updates, including Gemini 3.8 Flash, are closing gaps through test-time scaling and efficiency gains. Trader sentiment reflects the tight 4-month window to December 31, where incremental Elo climbs from new versions or reasoning modes could push past typical thresholds, tempered by historical release cadence variability and the widening closed-versus-open model divide. Key catalysts include further Q4 launches from major labs and sustained leaderboard voting volume.

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