Model pricing
Claude Mythos 5 pricing
Claude Mythos 5 by Anthropic costs
Claude Mythos 5 pricing
5 per 1M input tokens and $75 per 1M output tokens (cached inputClaude Mythos 5 pricing
.5, batch input not recorded) as of 2026-10-31. A 1,000-input/500-output request costs $0.0525. 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
Anthropic Mythos-class frontier model (Jun 9, 2026) — parent of Fable 5
Key pricing facts
| Fact | Value |
|---|---|
| Input / 1M tokens | $15 |
| Output / 1M tokens | $75 |
| Cached input / 1M | $1.5 |
| Batch input / output / 1M | Not recorded |
| Context window | 1,000,000 |
| Provider | Anthropic |
| Last verified | No model-specific verification date recorded |
| Snapshot updated | 2026-10-31 |
Last updated: · Source: Anthropic pricing · Methodology
Frequently asked questions
What does Claude Mythos 5 cost per million tokens?
Input costs $15 and output costs $75 per million tokens. The 1,000-input/500-output example costs $0.0525, before discounts, taxes, hidden reasoning tokens or context-tier surcharges.
Does Claude Mythos 5 have cached or batch pricing?
Cached input: $1.5 per million tokens under the existing provider cache rules. Batch: not recorded in this dataset. Eligibility and cache-write charges depend on the provider; these discounts are not automatically stacked.
What is a cheaper alternative to Claude Mythos 5?
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 2026-10-31. No model-specific verification date is recorded; the snapshot date must not be interpreted as an official provider verification.