Claude Mythos 5 API pricing
The variant of Anthropic's top Claude 5 model available to approved organizations; priced identically to Fable 5.
Input
$10.00
per 1M tokens
Cached input
$1.00
per 1M tokens
Cache write
$12.50
per 1M tokens
Output
$50.00
per 1M tokens
Context window
1M
max output 125K
Prices last synced Aug 20, 2026 from the LiteLLM community price catalog — the same catalog Marginal prices real usage events against, refreshed daily. Hand-checked against the provider's official pricing page on Aug 20, 2026. Spot an error? Tell us.
Pricing notes
- Limited availability (approved organizations); priced identically to Claude Fable 5.
- Cache writes $12.50/1M (5m) or $20.00/1M (1h); batch $5.00/$25.00.
What would Claude Mythos 5 cost you?
Enter your workload — add other models to compare the same traffic across providers.
Your monthly workload
Cache hit rate = share of input tokens served from the provider's prompt cache, billed at the model's cached-input price. Estimates use standard per-token rates — batch discounts, service tiers, and long-context surcharges are not applied.
| Model | Input | Cached input | Output | Per request | Monthly |
|---|---|---|---|---|---|
| Claude Mythos 5 | $6,000 | $400 | $12,500 | $0.038 | $18,900 |
More from Anthropic
Tracking Claude Mythos 5 in production?
Marginal prices every call your app actually makes — cached tokens, dated snapshots, model switches included — and slices spend by customer or feature. One track() call to integrate.