Anthropic released Claude Opus 5 on July 24, 2026, its latest flagship Opus-tier model, which delivers near-Fable 5 intelligence at half the price with stronger coding, agentic workflows, self-verification, and a 1M-token context window at $5/$25 per million tokens. This followed Opus 4.8 (May 28) by roughly two months and continued Anthropic’s accelerated cadence of point releases throughout the 4.x series in 2026, alongside the June introduction of a higher Mythos-class tier (Fable 5/Mythos 5). As of late August, no official announcements or credible reports have outlined timelines or features for the subsequent Opus model. Traders monitoring the market should track Anthropic’s pattern of rapid iteration, competitive benchmark pressure from OpenAI and Google, and any signals on the next major version jump or extended feature updates.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$29,928 Vol.
August 31
10%
September 30
66%
October 31
91%
December 31
97%
$29,928 Vol.
August 31
10%
September 30
66%
October 31
91%
December 31
97%
Claude Opus refers to a model by Anthropic explicitly named Opus. Qualifying models include Claude Opus 5.1, Claude Opus 5.5, Opus 6, or any other Opus variants. Models under any other name, such as Sonnet, Haiku, Fable, or Mythos, will not qualify, unless the model is explicitly and officially named Opus by Anthropic.
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 be either clearly defined and publicly announced by Anthropic as being accessible to the general public or otherwise made publicly accessible and explicitly labeled within 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: Jul 28, 2026, 6:32 PM ET
Resolver
0x65070BE91...Claude Opus refers to a model by Anthropic explicitly named Opus. Qualifying models include Claude Opus 5.1, Claude Opus 5.5, Opus 6, or any other Opus variants. Models under any other name, such as Sonnet, Haiku, Fable, or Mythos, will not qualify, unless the model is explicitly and officially named Opus by Anthropic.
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 be either clearly defined and publicly announced by Anthropic as being accessible to the general public or otherwise made publicly accessible and explicitly labeled within 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 released Claude Opus 5 on July 24, 2026, its latest flagship Opus-tier model, which delivers near-Fable 5 intelligence at half the price with stronger coding, agentic workflows, self-verification, and a 1M-token context window at $5/$25 per million tokens. This followed Opus 4.8 (May 28) by roughly two months and continued Anthropic’s accelerated cadence of point releases throughout the 4.x series in 2026, alongside the June introduction of a higher Mythos-class tier (Fable 5/Mythos 5). As of late August, no official announcements or credible reports have outlined timelines or features for the subsequent Opus model. Traders monitoring the market should track Anthropic’s pattern of rapid iteration, competitive benchmark pressure from OpenAI and Google, and any signals on the next major version jump or extended feature updates.
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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