Claude Opus 5.5 · $4 / MTok · $5 / MTok · $8 / MTok · $0.20 / MTok2 · $20 / MTok · - _1 Cache hits and refreshes on Claude Fable 5.1…
Anthropic Docs Pricing → · 2026-09-22T16:30:29.033Z
| Model | Field | Old → New (/1M) | Change |
|---|---|---|---|
| Claude Opus 5.5 | input | — → $4 | |
| Claude Opus 5.5 | output | — → $20 | |
| Claude Opus 5.5 | cached input | — → $0.2 | |
| Claude Opus 5.5 | cache writes | — → $5 |
+ | Claude Opus 5.5 | $4 / MTok | $5 / MTok | $8 / MTok | $0.20 / MTok2 | $20 / MTok | - _1 Cache hits and refreshes on Claude Fable 5.1 and Claude Mythos 5.1 are priced at 0.025x the base input price. All other models use the standard 0.1x multiplier._ + _1 Cache hits and refreshes on Claude Fable 5.1 and Claude Mythos 5.1 are priced at 0.025x the base input price._ + _2 Cache hits and refreshes on Claude Opus 5.5 are priced at 0.05x the base input price._ + _All other models use the standard 0.1x multiplier._ - | Cache read (hit) | 0.1x base input price (0.025x on Claude Fable 5.1 and Claude Mythos 5.1) | Same duration as the preceding write | + | Cache read (hit) | 0.1x base input price (0.025x on Claude Fable 5.1 and Claude Mythos 5.1; 0.05x on Claude Opus 5.5) | Same duration as the preceding write | - Cache write tokens are charged when content is first stored. Cache read tokens are charged when a subsequent request retrieves the cached content. A cache hit costs 10% of the standard input price, which means caching pays off after one cache read for the 5-minute duration (1.25x write), or after two cache reads for the 1-hour duration (2x write). On Claude Fable 5.1 and Claude Mythos 5.1, a cache hit costs 2.5% of the standard input price ($0.25 USD per million tokens). + Cache write tokens are charged when content is first stored. Cache read tokens are charged when a subsequent request retrieves the cached content. A cache hit costs 10% of the standard input price, which means caching pays off after one cache read for the 5-minute duration (1.25x write), or after two cache reads for the 1-hour duration (2x write). On Claude Fable 5.1 and Claude Mythos 5.1, a cache hit costs 2.5% of the standard input price ($0.25 USD per million tokens). On Claude Opus 5.5, a cache hit costs 5% of the standard input price ($0.20 USD per million tokens). - , in research preview, provides significantly faster output for Claude Opus 5 and Claude Opus 4.8 at premium pricing. Fast mode pricing applies across the full context window, including requests over 200k input tokens. Fast mode is available on the Claude API (first-party) only; it is not available on Claude Platform on AWS or partner-operated cloud platforms. + , in research preview, provides significantly faster output for Claude Opus 5.5, Claude Opus 5, and Claude Opus 4.8 at premium pricing. Fast mode pricing applies across the full context window, including requests over 200k input tokens. Fast mode is available on the Claude API (first-party) only; it is not available on Claude Platform on AWS or partner-operated cloud platforms. + | Claude Opus 5.5 | $8 / MTok | $40 / MTok | + | Claude Opus 5.5 | $2 / MTok | $10 / MTok | + | Claude Opus 5.5 | `auto`, `none` | 286 tokens |