AnthropicClaude Mythos Preview
Claude Mythos Preview is an Anthropic proprietary model, released 7 Apr 2026. It is not yet ranked: no independent benchmark results so far, only pricing and metadata.
- Blended price
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- Output speed
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- First answer
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- Context
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- Released
- 7 Apr 2026
Benchmark results
One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.
Agents & tools
| Benchmark | not stated | Source |
|---|---|---|
| ExploitBenchnot in index | 73.8%#1 | Epoch AI Benchmarking Hub |
| METR Time Horizonsnot in index | 85.2%#1 | METR |
See also
Data as of 19 Sept 2026. Compare with another model.
Cite as: BenchLeader, “Claude Mythos Preview: benchmarks, pricing, speed and rank”, https://www.benchleader.com/models/claude-mythos-early, data as of 19 Sept 2026.