Claude Mythos 5.1
Shares Fable 5.1's capabilities and specifications, but access is limited to organizations approved through Anthropic verification programs. Active does not mean access for every account.
Listed as available by vendor
- Vendor
- Anthropic
- Modality
- textimagecode
- Directory associations
- 0
Sources and review scope
Official identity and task scope checked
A specifically named model entry; the sources define what was checked.
Checks cover only the names and tasks supported by the linked sources. They do not verify benchmarks, rankings, licensing, or another tool's current configuration.
Checked:
Article updated:
- Claude Mythos 5.1 overviewChecked: 2026-10-15
Directory matching names
These names match legacy directory records; they are not automatically official aliases or identical snapshots.
Claude Mythos 5.1claude-mythos-5-1
Related models
Other models from the same vendor or modality.
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