claude-mythos-5Claude Mythos 5 is Anthropic’s proprietary AI model, released Jun 9, 2026. Its strongest use case is agentic & tools, where it ranks in the 100th percentile of the models Model Beat tracks.
Scores on standardized evaluations. Higher is better — and rank shows where Claude Mythos 5 lands among all models tracked on Model Beat.
Autonomous task length
Claude Mythos 5 is a Claude-family AI model, from Anthropic, released Jun 9, 2026.
Claude Mythos 5 is an AI model developed by Anthropic, part of the Claude family, released Jun 9, 2026.
On standardized evaluations tracked by Epoch AI, Claude Mythos 5 scores 17.4 h on METR task horizon.
Claude Mythos 5 is a proprietary model (Unreleased), available through its provider's API rather than as a downloadable open-weight model.
Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Jul 30, 2026.