Anthropic continues rapid iteration within its Claude 5 family, highlighted by the September 1, 2026 release of Fable 5.1 and Mythos 5.1, positioned as the most advanced models yet for coding, knowledge work, and research tasks with improved efficiency and reduced safeguards. These follow closely spaced launches including Opus 5 in July and Sonnet 5 in June, reflecting a strategy of frequent, targeted upgrades rather than a full generational leap. Competitive dynamics with OpenAI and Google labs, plus focus on agentic capabilities and safety evaluations, shape release pacing. No official Claude 6 announcements or system cards have appeared, implying traders see the next major version as unlikely before late 2026 or 2027 absent a major capability breakthrough or rival pressure. Key upcoming catalysts include further 5-series refinements or new benchmarks.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMarch 31, 2027
25%
June 30, 2027
46%
December 31, 2027
74%
$300 Vol.
March 31, 2027
25%
June 30, 2027
46%
December 31, 2027
74%
A qualifying model must have a name or model identifier that includes "Claude" and be designated as version 6 or higher, regardless of capitalization or surrounding prefixes, suffixes, dates, or descriptors. Any of Anthropic's general-purpose model families qualifies, including Fable, Opus, Sonnet, Haiku, or a successor general-purpose family, provided the version designation of 6 or higher appears in the name or model identifier. For example, Claude Fable 6, Claude Opus 6, Claude Sonnet 6, or a later version such as Claude Fable 6.1 or Claude 7 would qualify, while models that retain a version designation below 6, such as Claude Fable 5.1 or Claude Opus 5, and models that do not carry an explicit version number of 6 or higher in their name or identifier, regardless of how they are described or positioned, will not qualify. A Mythos-branded release available only through Anthropic's verification or trusted-access programs, and task-specific products or restricted lines such as Claude Code, Claude Gov, or Claude Security, will not qualify on their own.
A qualifying model must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must either be clearly defined and publicly announced by Anthropic as accessible to the general public, or otherwise be made publicly accessible and explicitly labeled on the company's official website. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public will not qualify.
The primary resolution source for this market will be official information from Anthropic, with additional verification from a consensus of credible reporting.
Market Opened: Sep 4, 2026, 10:58 AM ET
Resolver
0x65070BE91...A qualifying model must have a name or model identifier that includes "Claude" and be designated as version 6 or higher, regardless of capitalization or surrounding prefixes, suffixes, dates, or descriptors. Any of Anthropic's general-purpose model families qualifies, including Fable, Opus, Sonnet, Haiku, or a successor general-purpose family, provided the version designation of 6 or higher appears in the name or model identifier. For example, Claude Fable 6, Claude Opus 6, Claude Sonnet 6, or a later version such as Claude Fable 6.1 or Claude 7 would qualify, while models that retain a version designation below 6, such as Claude Fable 5.1 or Claude Opus 5, and models that do not carry an explicit version number of 6 or higher in their name or identifier, regardless of how they are described or positioned, will not qualify. A Mythos-branded release available only through Anthropic's verification or trusted-access programs, and task-specific products or restricted lines such as Claude Code, Claude Gov, or Claude Security, will not qualify on their own.
A qualifying model must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must either be clearly defined and publicly announced by Anthropic as accessible to the general public, or otherwise be made publicly accessible and explicitly labeled on the company's official website. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public will not qualify.
The primary resolution source for this market will be official information from Anthropic, with additional verification from a consensus of credible reporting.
Resolver
0x65070BE91...Anthropic continues rapid iteration within its Claude 5 family, highlighted by the September 1, 2026 release of Fable 5.1 and Mythos 5.1, positioned as the most advanced models yet for coding, knowledge work, and research tasks with improved efficiency and reduced safeguards. These follow closely spaced launches including Opus 5 in July and Sonnet 5 in June, reflecting a strategy of frequent, targeted upgrades rather than a full generational leap. Competitive dynamics with OpenAI and Google labs, plus focus on agentic capabilities and safety evaluations, shape release pacing. No official Claude 6 announcements or system cards have appeared, implying traders see the next major version as unlikely before late 2026 or 2027 absent a major capability breakthrough or rival pressure. Key upcoming catalysts include further 5-series refinements or new benchmarks.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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