Claude Fable 5.1-max leads trader sentiment at 62% implied probability because Anthropic released the model on September 1, 2026, immediately establishing it as the top performer on independent benchmarks such as BenchLM’s overall index. Its Mythos-class architecture delivers state-of-the-art results in long-horizon coding, agentic workflows, and knowledge work, outperforming the July-launched Claude Opus 5 and earlier variants still reflected in lower-priced contracts. With only 17 days until September 21, the market prices in limited scope for a new competing release from other labs to overtake it before resolution, while the 30.5% “Other” bucket captures residual uncertainty around rapid capability jumps or benchmark shifts.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · AtualizadoMelhor modelo de IA em 21 de setembro?
claude-fable-5.1-max 45%
Outro 41%
claude-opus-5-high 26%
claude-opus-5-max 13%
claude-fable-5.1-max
29%
Outro
39%
claude-opus-5-high
26%
claude-opus-5-max
13%
claude-opus-4-6-high
6%
claude-fable-5.1-max 45%
Outro 41%
claude-opus-5-high 26%
claude-opus-5-max 13%
claude-fable-5.1-max
29%
Outro
39%
claude-opus-5-high
26%
claude-opus-5-max
13%
claude-opus-4-6-high
6%
Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall-no-style-control with style control off (Adjustments: None) and filtered for "Models" will be used to resolve this market.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
No new model will be added to this market after market creation. Any model not explicitly listed in this market will be encompassed under the "Other" option.
Models will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie still remains, alphabetical order of model names as listed in this market group (full string, including suffixes such as “-high” and “-max”) will be used as a final tiebreaker (e.g., if two models remain tied, “claude-opus-5-high” would be ranked ahead of “claude-opus-5-max”). This market will resolve to the model that comes first according to this order.
The resolution source for this market is the arena.ai Text Arena (Overall). If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve to "Other".
Mercado Aberto: Sep 3, 2026, 10:16 AM ET
Resolver
0x69c47De9D...Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall-no-style-control with style control off (Adjustments: None) and filtered for "Models" will be used to resolve this market.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
No new model will be added to this market after market creation. Any model not explicitly listed in this market will be encompassed under the "Other" option.
Models will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie still remains, alphabetical order of model names as listed in this market group (full string, including suffixes such as “-high” and “-max”) will be used as a final tiebreaker (e.g., if two models remain tied, “claude-opus-5-high” would be ranked ahead of “claude-opus-5-max”). This market will resolve to the model that comes first according to this order.
The resolution source for this market is the arena.ai Text Arena (Overall). If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve to "Other".
Resolver
0x69c47De9D...Claude Fable 5.1-max leads trader sentiment at 62% implied probability because Anthropic released the model on September 1, 2026, immediately establishing it as the top performer on independent benchmarks such as BenchLM’s overall index. Its Mythos-class architecture delivers state-of-the-art results in long-horizon coding, agentic workflows, and knowledge work, outperforming the July-launched Claude Opus 5 and earlier variants still reflected in lower-priced contracts. With only 17 days until September 21, the market prices in limited scope for a new competing release from other labs to overtake it before resolution, while the 30.5% “Other” bucket captures residual uncertainty around rapid capability jumps or benchmark shifts.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · Atualizado


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