Claude Fable 5 API pricing
Anthropic's flagship Claude 5 model — the Mythos-class tier above Opus.
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
- Cache writes bill $12.50/1M (5-minute TTL) or $20.00/1M (1-hour TTL); cache reads $1.00/1M. Batch API halves input and output ($5.00/$25.00).
- 1M-token context window at standard rates — no long-context surcharge. US-pinned inference (inference_geo: "us") bills a 1.1x multiplier.
What would Claude Fable 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 Fable 5 | $6,000 | $400 | $12,500 | $0.038 | $18,900 |
Compare Claude Fable 5
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Tracking Claude Fable 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.