Not established from the available sources.
ANTHROPIC · MODEL RELEASE TRACKER
Claude Mythos 5.1
Claude Mythos 5.1 is a named Anthropic model version listed by the company as one of its most capable models and is included in programs that provide vetted security teams with expanded cyber capabilities and reduced blocking classifiers.CURRENT SNAPSHOT1/5 DIMENSIONS WITH DATA
The dimensions that change the decision.
Not established from the available sources.
Not established from the available sources.
Not established from the available sources.
Available via expanded Cyber Verification Program (CVP) access tiersClaude Mythos 5.1 is listed among Anthropic’s 'most capable models' and is made available to qualifying security professionals through the expanded Cyber Verification Program (CVP).
Previously accessible via Project Glasswing (trusted access)Anthropic states that Project Glasswing had given a group of organizations securing critical software trusted access to Claude Mythos.
VERIFIABLE FACTS
Every value stays attached to a source and date.
AVAILABILITY · Available via expanded Cyber Verification Program (CVP) access tiersDEVELOPER CLAIM
Claude Mythos 5.1 is listed among Anthropic’s 'most capable models' and is made available to qualifying security professionals through the expanded Cyber Verification Program (CVP).
AVAILABILITY · Previously accessible via Project Glasswing (trusted access)DEVELOPER CLAIM
Anthropic states that Project Glasswing had given a group of organizations securing critical software trusted access to Claude Mythos.
SAFETY · Access associated with advanced cyber capabilities and reduced blocking classifiers for qualifying security teamsDEVELOPER CLAIM
The expanded CVP is described as making advanced cyber capabilities and reduced blocking classifiers available to qualifying security professionals; Claude Mythos 5.1 is included among the models available in those tiers.
CAPABILITIES · Listed among Anthropic's 'most capable models'DEVELOPER CLAIM
Anthropic lists Claude Mythos 5.1 among its most capable models that are made available to certain security programs.
WHAT CHANGED
Stored passport versions, without reconstructed history.
AVAILABILITY · Availability− Reportedly available only to U.S. organizations.
AVAILABILITY · Available via expanded Cyber Verification Program (CVP) access tiers+ Claude Mythos 5.1 is listed among Anthropic’s 'most capable models' and is made available to qualifying security professionals through the expanded Cyber Verification Program (CVP).
CAPABILITIES · Listed among Anthropic's 'most capable models'+ Anthropic lists Claude Mythos 5.1 among its most capable models that are made available to certain security programs.
AVAILABILITY · Previously accessible via Project Glasswing (trusted access)+ Anthropic states that Project Glasswing had given a group of organizations securing critical software trusted access to Claude Mythos.
SAFETY · Access associated with advanced cyber capabilities and reduced blocking classifiers for qualifying security teams+ The expanded CVP is described as making advanced cyber capabilities and reduced blocking classifiers available to qualifying security professionals; Claude Mythos 5.1 is included among the models available in those tiers.