API Cost Check
Claude Mythos Preview API pricing retired
Claude Mythos Preview was deprecated by Anthropic on 2026-06-09. The prices below are the last ones we recorded (data last changed 2026-10-13); they no longer appear in the calculators or rankings.
| Input | $10.00 / 1M tokens |
|---|---|
| Output | $50.00 / 1M tokens |
| Cached input | $1.00 / 1M tokens |
| Cache write | $12.50 / 1M tokens |
| Cache write (1-hour TTL) | $20.00 / 1M tokens |
| Minimum cacheable prompt | 512 tokens |
Last prices in context
Its last price was $10.00 input / $50.00 output per 1M. The cheapest current Anthropic model, Claude Haiku 5.5, costs $0.10 / $0.50 (1% of the old output price), and the closest current Anthropic model by price is Claude Fable 5.1 ($10.00 / $50.00). Before migrating, re-run your own evaluation on the replacement; every current Anthropic price is on the Anthropic hub and changes appear in the monthly roundups.
Current Anthropic models
- Claude Haiku 5.5 — $0.10 / $0.50
- Claude Haiku 4.5 — $1.00 / $5.00
- Claude Sonnet 5.5 — $2.00 / $10.00
- Claude Sonnet 5 — $2.00 / $10.00
- Claude Sonnet 4.6 — $3.00 / $15.00
Price history
No price changes recorded since tracking began on 2026-10-08.