Next Mythos-Class Model released by September 2, 2026?

ResolutionResolved YES

YES payout100¢

NO payout0¢

VenuePolymarket

Realized · held to resolution+82%$100 paper stake

Polymarket55¢ → 100¢

Our position · YES55¢ → 100¢

Signal endedSep 1

Forecast updated

Aug 30 forecast

Anthropic is already using Model 2 heavily internally and has previously released a safeguarded Mythos configuration, so a qualifying public release is favored.

The visible evidence leans against an imminent launch: Anthropic has not announced a qualifying successor, its newest Mythos access remains restricted, and Opus 5 was recently its strongest generally available model. A qualifying release is nevertheless favored because Model 2 is already seeing heavy internal use and Anthropic has demonstrated that it can turn a restricted underlying model into a safeguarded configuration for general access. That creates a credible short-notice launch path, although the rapidly closing window leaves substantial risk that public access arrives too late.

Points to YES

Heavy internal use makes Model 2 a plausible near-term release candidate, although Anthropic has not identified it as Mythos-class.
On August 28, Anthropic reported that Model 2 was being used heavily inside the company for coding, data generation, and other agentic work.
Anthropic has already shown that a restricted Mythos system can support a safeguarded configuration released for general use.
On June 9, Anthropic launched Claude Fable 5 and officially described it as a Mythos-class model made safe for general use.

Points to NO

The latest official description still places the more capable Mythos configuration behind restricted customer access.
On August 28, Anthropic said Mythos 5 was available to certain customers through Project Glasswing.
Almost no time remains for Anthropic to announce, launch, and open a qualifying successor to the public.
On August 30, the market’s public-access deadline was September 2.
Anthropic recently continued to identify an Opus model, rather than a new Mythos-class successor, as its strongest generally available offering.
On August 18, Anthropic said Opus 5 remained its most capable generally available model.

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