Model pricing
Claude Mythos 5.2 pricing
Claude Mythos 5.2 by Anthropic costs $8 per 1M input tokens and $40 per 1M output tokens (cached input $0.8, batch input $4) as of 2026-11-09. A 1,000-input/500-output request costs $0.028. The lowest-cost alternative with at least this context window and the same recorded reasoning category is GPT 4.1 Nano (OpenAI) at $0.05/$0.2; capability equivalence is not guaranteed.
Notes
Released Nov 9, 2026 — same model as Fable 5.2 without cyber/bio limits; access through Anthropic's Cyber and Life Sciences Verification Programs. Fast mode: $16/$80 per 1M.
Key pricing facts
| Fact | Value |
|---|---|
| Input / 1M tokens | $8 |
| Output / 1M tokens | $40 |
| Cached input / 1M | $0.8 |
| Batch input / output / 1M | $4 / $20 |
| Context window | 1,000,000 |
| Provider | Anthropic |
| Last verified | 2026-11-09 |
| Snapshot updated | 2026-11-09 |
Last updated: · Source: Anthropic pricing · Methodology
Frequently asked questions
What does Claude Mythos 5.2 cost per million tokens?
Input costs $8 and output costs $40 per million tokens. The 1,000-input/500-output example costs $0.028, before discounts, taxes, hidden reasoning tokens or context-tier surcharges.
Does Claude Mythos 5.2 have cached or batch pricing?
Cached input: $0.8 per million tokens under the existing provider cache rules. Batch: $4 input and $20 output per million tokens. Eligibility and cache-write charges depend on the provider; these discounts are not automatically stacked.
What is a cheaper alternative to Claude Mythos 5.2?
GPT 4.1 Nano (OpenAI) costs $0.05 input and $0.2 output per million tokens. This comparison matches context capacity and reasoning category, not benchmark quality. Test your workload before replacing a model.
How often are these prices verified?
The live pricing table synchronizes stored model records daily; public file snapshots update when the site is rebuilt. Synchronization is not independent provider verification. Snapshot updated 2026-11-09. The recorded model verification date is 2026-11-09.