Traders assign claude-fable-5.1-max the leading 57.5% implied probability following its September 1 release as Anthropic’s latest Mythos-class large language model, optimized for long-horizon coding, knowledge work, and agentic tasks. The update delivers higher benchmark scores than Fable 5 on evaluations like Terminal-Bench and Frontier-Bench while cutting effective costs through improved cache pricing, reinforcing its edge in recent developer and enterprise feedback. The 33% share for Other captures uncertainty around potential near-term updates from OpenAI or Google that could shift the frontier before September 21. Lower probabilities on the various Claude Opus 5 variants reflect their earlier July and May launches and comparatively narrower capability gains.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiertclaude-fable-5.1-max 57%
Andere 34%
claude-opus-5-high 3.5%
claude-opus-5-max 2.0%
claude-fable-5.1-max
57%
Andere
34%
claude-opus-5-high
4%
claude-opus-5-max
2%
claude-opus-4-6-high
1%
claude-fable-5.1-max 57%
Andere 34%
claude-opus-5-high 3.5%
claude-opus-5-max 2.0%
claude-fable-5.1-max
57%
Andere
34%
claude-opus-5-high
4%
claude-opus-5-max
2%
claude-opus-4-6-high
1%
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".
Markt eröffnet: Sep 3, 2026, 10:16 AM ET
Abwickler
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".
Abwickler
0x69c47De9D...Traders assign claude-fable-5.1-max the leading 57.5% implied probability following its September 1 release as Anthropic’s latest Mythos-class large language model, optimized for long-horizon coding, knowledge work, and agentic tasks. The update delivers higher benchmark scores than Fable 5 on evaluations like Terminal-Bench and Frontier-Bench while cutting effective costs through improved cache pricing, reinforcing its edge in recent developer and enterprise feedback. The 33% share for Other captures uncertainty around potential near-term updates from OpenAI or Google that could shift the frontier before September 21. Lower probabilities on the various Claude Opus 5 variants reflect their earlier July and May launches and comparatively narrower capability gains.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiert

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