The whole hunk
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1818| Claude Mythos 5.1 ([limited availability](https://anthropic.com/glasswing)) | $10 / MTok | $12.50 / MTok | $20 / MTok | $0.25 / MTok<sup>1</sup> | $50 / MTok |
1919| Claude Fable 5 | $10 / MTok | $12.50 / MTok | $20 / MTok | $1 / MTok | $50 / MTok |
2020| Claude Mythos 5 ([limited availability](https://anthropic.com/glasswing)) | $10 / MTok | $12.50 / MTok | $20 / MTok | $1 / MTok | $50 / MTok |
21| Claude Opus 5.5 | $4 / MTok | $5 / MTok | $8 / MTok | $0.20 / MTok<sup>2</sup> | $20 / MTok |
2122| Claude Opus 5 | $5 / MTok | $6.25 / MTok | $10 / MTok | $0.50 / MTok | $25 / MTok |
2223| Claude Opus 4.8 | $5 / MTok | $6.25 / MTok | $10 / MTok | $0.50 / MTok | $25 / MTok |
2324| Claude Opus 4.7 | $5 / MTok | $6.25 / MTok | $10 / MTok | $0.50 / MTok | $25 / MTok |
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3233| Claude Haiku 4.5 | $1 / MTok | $1.25 / MTok | $2 / MTok | $0.10 / MTok | $5 / MTok |
3334| Claude Haiku 3.5 ([retired, except on Bedrock and Google Cloud](https://platform.claude.com/docs/en/about-claude/model-deprecations)) | $0.80 / MTok | $1 / MTok | $1.60 / MTok | $0.08 / MTok | $4 / MTok |
3435
35*<sup>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.</sup>*
36*<sup>1 Cache hits and refreshes on Claude Fable 5.1 and Claude Mythos 5.1 are priced at 0.025x the base input price.</sup>*
3637
38*<sup>2 Cache hits and refreshes on Claude Opus 5.5 are priced at 0.05x the base input price.</sup>*
39
40*<sup>All other models use the standard 0.1x multiplier.</sup>*
41
3742<Note id="claude-sonnet-5-introductory-pricing">
3843 The $2/$10 per million input/output token pricing for Claude Sonnet 5, announced at launch as introductory pricing through August 31, 2026, is now the standard price. The previously scheduled increase to $3/$15 per million input/output tokens on September 1, 2026 will not occur.
3944</Note>
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142147
143148Prompt caching uses the following pricing multipliers relative to base input token rates:
144149
145| Cache operation | Multiplier | Duration |
146| -------------------- | ------------------------------------------------------------------------ | ------------------------------------ |
147| 5-minute cache write | 1.25x base input price | Cache valid for 5 minutes |
148| 1-hour cache write | 2x base input price | Cache valid for 1 hour |
149| 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 |
150| Cache operation | Multiplier | Duration |
151| -------------------- | -------------------------------------------------------------------------------------------------- | ------------------------------------ |
152| 5-minute cache write | 1.25x base input price | Cache valid for 5 minutes |
153| 1-hour cache write | 2x base input price | Cache valid for 1 hour |
154| 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 |
150155
151Cache 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).
156Cache 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).
152157
153158These multipliers stack with other pricing modifiers, including the Batch API discount and data residency.
154159
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164169
165170### Fast mode pricing
166171
167[Fast mode](https://platform.claude.com/docs/en/build-with-claude/fast-mode), 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.
172[Fast mode](https://platform.claude.com/docs/en/build-with-claude/fast-mode), 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.
168173
169174| Model | Input | Output |
170175| ------------------------------- | ---------- | ---------- |
176| Claude Opus 5.5 | $8 / MTok | $40 / MTok |
171177| Claude Opus 5 / Claude Opus 4.8 | $10 / MTok | $50 / MTok |
172178
173179Fast mode is not available on Claude Opus 4.7 (requests with `speed: "fast"` return an error) or Claude Opus 4.6 (requests run at standard speed and are billed at standard rates). See [Fast mode](https://platform.claude.com/docs/en/build-with-claude/fast-mode#supported-models).
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191197| Claude Mythos 5.1 ([limited availability](https://anthropic.com/glasswing)) | $5 / MTok | $25 / MTok |
192198| Claude Fable 5 | $5 / MTok | $25 / MTok |
193199| Claude Mythos 5 ([limited availability](https://anthropic.com/glasswing)) | $5 / MTok | $25 / MTok |
200| Claude Opus 5.5 | $2 / MTok | $10 / MTok |
194201| Claude Opus 5 | $2.50 / MTok | $12.50 / MTok |
195202| Claude Opus 4.8 | $2.50 / MTok | $12.50 / MTok |
196203| Claude Opus 4.7 | $2.50 / MTok | $12.50 / MTok |
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232239| Model | Tool choice | Tool use system prompt token count |
233240| ------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------ | ---------------------------------- |
241| Claude Opus 5.5 | `auto`, `none` | 286 tokens |
234242| Claude Opus 5 | `auto`, `none`***`any`, `tool` | 286 tokens***406 tokens |
235243| Claude Opus 4.8 | `auto`, `none`***`any`, `tool` | 290 tokens***410 tokens |
236244| Claude Opus 4.7 | `auto`, `none`***`any`, `tool` | 675 tokens***804 tokens |