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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.248

Pricing tables rewritten as plain objects

Under the hood
Useful2 Signal3
Pricing

Model pricing tables were reformatted, including new five-in and thirty-in rate tiers.

What

Per-model rates are now flat objects, including a 5 in / 25 out / 0.5 cache-read tier and a 30 / 150 tier. The 1M-context flags on Sonnet 4.0, 4.5, 4.6 and Opus 4.6 are unchanged in value; only their formatting moved.

Evidence

promptCacheWrite1hTokens

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.248 →