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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Home Docs Claude Developer Platform 16 Sep 2026
One change · api

Request 2 caches its request content (not the response) changed

build-with-claude/prompt-caching

Nearest release: v2.1.274, published 7 hours after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
Lines+4added
Lines−4removed
From line 232 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits9to this page, all time

The whole hunk

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232232Prompt caching introduces a new pricing structure. The following table shows the price per million tokens for each supported model:
233233 
234234| Model | Base input tokens | 5m cache writes | 1h cache writes | Cache hits and refreshes | Output tokens |
235| ------------------------------------------------------------------------------------------------------------------------------------- | ----------------- | --------------- | --------------- | ------------------------ | ------------- |
236| Claude Fable 5.1 | $10 / MTok | $12.50 / MTok | $20 / MTok | $0.25 / MTok1 | $50 / MTok |
237| Claude Mythos 5.1 ([limited availability](https://anthropic.com/glasswing)) | $10 / MTok | $12.50 / MTok | $20 / MTok | $0.25 / MTok1 | $50 / MTok |
235| :------------------------------------------------------------------------------------------------------------------------------------ | :---------------- | :-------------- | :-------------- | :----------------------- | :------------ |
236| Claude Fable 5.1 | $10 / MTok | $12.50 / MTok | $20 / MTok | $0.25 / MTok<sup>1</sup> | $50 / MTok |
237| 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 |
238238| Claude Fable 5 | $10 / MTok | $12.50 / MTok | $20 / MTok | $1 / MTok | $50 / MTok |
239239| Claude Mythos 5 ([limited availability](https://anthropic.com/glasswing)) | $10 / MTok | $12.50 / MTok | $20 / MTok | $1 / MTok | $50 / MTok |
240240| Claude Opus 5 | $5 / MTok | $6.25 / MTok | $10 / MTok | $0.50 / MTok | $25 / MTok |
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251251| Claude Haiku 4.5 | $1 / MTok | $1.25 / MTok | $2 / MTok | $0.10 / MTok | $5 / MTok |
252252| 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 |
253253 
254*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.*
254*<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>*
255255 
256256<Note>
257257 The previous table reflects the following pricing multipliers for prompt caching: