Partially Verified80% confidenceReleaseExact time
Anthropic released two new models, Claude Fable 5.2 and Claude Mythos 5.2.
11
Sources
80%
Confidence
Medium-term (~90 days)
Relevance
11/9/2026
First Seen
Valid until: 2/7/2027
Sources
Related Entities
Related Claims
UnverifiedAnthropic's next-generation frontier model Claude Fable 5.2 is reportedly ready and is regarded as a significant upgrade over Fable 5.1.77% similarUnverifiedClaude Fable 5.1 belongs to the Mythos tier of the Claude 5 family and shares the same underlying architecture as Claude Mythos 5.1.76% similarUnverifiedAnthropic released two models on September 2nd, Fable 5.1 and Mythos 5.1, which share the same set of base model weights but differ in safety policies and access scope.75% similarUnverifiedAnthropic released Claude Fable 5.2 and Claude Mythos 5.2, with API call fees dropping by 20%.74% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1152175API
curl https://kongchang.com/api/v1/knowledge/claims/1152175MCP
get_claim(id=1152175)