Claude Mythos Preview
Claude Mythos Preview is a limited-access language model from Anthropic, released April 7, 2026.
Claude Mythos Preview is a general-purpose, unreleased frontier model that reveals a stark fact: AI models have reached a level of coding capability where they can surpass all but the most skilled humans at finding and exploiting software vulnerabilities.
Check it against your own PC →
Lab
Anthropic
Released
April 7, 2026
Weights
limited-access
Parameters
–
Context
–
Price / M tokens
–
Epoch ECI
not yet rated
Benchmark results
Epoch AI has not published results for Claude Mythos Preview yet. New models are usually evaluated within days to weeks.
Links
More from Anthropic
Claude Fable 5.2 · Claude Haiku 5.5 · Claude Sonnet 5.5 · Claude Opus 5.5 · Claude Fable 5.1 · Claude Opus 5 · Claude Sonnet 5 · Claude Fable 5