Count tokens in a Message changedapi/messages/count_tokens
Nearest release: v2.1.294, published an hour 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.
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Lines+4added
Lines−0removed
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1,061
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits16to this page, all time
The whole hunk
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10621062 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
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1064 - `"claude-haiku-5-5"`
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1066 Fastest model for high-volume, real-time tasks
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10641068 - `"claude-sonnet-5-5"`
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10661070 Efficient model for coding and agents
No line in this hunk matches that.