Claude Mythos 5.1 Pricing
$10 per 1M input and $50 per 1M output. Free tier: No free tier (API usage billed).
Cost Calculator
Estimated cost:
Full Pricing Matrix
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| Tier | Input | Output | Unit | Cache Read |
|---|---|---|---|---|
| standard | $10 | $50 | /1M tok | $1.0 |
| batch | $5.0 | $25.0 | /1M tok | — |
Price History
2026-09-24
Anthropic lineup completed (+9 models)
About Claude Mythos 5.1
New Anthropic model family at the premium tier.
- Same per-token price as Fable 5.1
- Batch API: 50% discount
- Prices per million tokens (MTok) from Claude platform docs
Frequently Asked Questions
How much does Claude Mythos 5.1 cost?
$10 per 1M input tokens and $50 per 1M output tokens.
Is there a batch discount for Claude Mythos 5.1?
Yes — the Anthropic Batch API applies a 50% discount.