Anthropic · Flagship
Claude Mythos 5.1
Limited-availability counterpart of Fable 5.1 for selected organisations (per press, cybersecurity and life sciences)
- Provider
- Anthropic
- Family
- Claude
- Model type
- Flagship
- Official release date
- Sep 1, 2026
- Release type
- New version
- Status
- Generally available
- Previous version
- Claude Mythos 5
- Input
- text, image
- Output
- text
- Context window
- Not documented
- Max output
- Not documented
- API model id
claude-mythos-5-1- API price (input)
- $10 per 1M tokens
- API price (output)
- $50 per 1M tokens
- Price notes
- —
- Consumer apps
- —
- Developer API
- Claude API (limited availability)
- Free access
- None documented
- Paid access
- —
- Availability
- —
- Licence
- proprietary
Benchmarks
No benchmark results recorded. We only list scores with a source, benchmark version and date.
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