Which company's AI will first hit 1550 on Chatbot Arena in 2026?

Traders currently price "None in 2026" at 79% for "Which company's AI will first hit 1550 on Chatbot Arena in 2026?". Full distribution: None in 2026 79%, Anthropic 13%, Google 8%, OpenAI 4%. The market has traded $113K in total volume and resolves Dec 31, 2026. Current top models on the LMSYS Chatbot Arena leaderboard sit at 1507–1511 Elo as of mid-August 2026, led by Anthropic’s Claude Opus 5 and Fable 5 variants, followed closely by OpenAI’s GPT-5.6 and xAI’s Grok-4.6. Reaching 1550 would require an unusually rapid 40-plus-point gain in the final months of the year, which has not materialized despite recent releases and iterative improvements across frontier labs. Trader consensus therefore heavily favors “None in 2026” at 79 percent implied probability, with Anthropic’s narrow lead reflected in its 12.5 percent odds versus Google and OpenAI at single digits. Limited remaining calendar time and historical patterns of incremental rather than explosive leaderboard jumps reinforce the market’s assessment that no company is positioned to cross the threshold before year-end.

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