AnthropicReasoning modelClaude Mythos 5.1
Not yet ranked: too few independent results so far.
- Blended price
- $20.00/M
- $10.00 in · $50.00 out
- Output speed
- –
- First answer
- –
- Context
- 1M
No independent quality benchmark results yet — only pricing and metadata.
What a task costs
Estimates from list price, output speed and time to first answer for the best configuration. “With caching” assumes three-quarters of the input is served from the prompt cache. Reasoning tokens are not modelled.
| Workload | Tokens in / out | Cost | With caching | Time |
|---|---|---|---|---|
| Chat reply | 400 / 300 | $0.019 | – | – |
| Summarise a 30-page report | 12,000 / 600 | $0.150 | – | – |
| Code edit | 6,000 / 1,500 | $0.135 | – | – |
| Agentic coding session | 60,000 / 4,000 | $0.800 | – | – |
| Structured extraction | 2,000 / 200 | $0.030 | – | – |
See also
Data as of 9 Sept 2026. Compare with another model.