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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

Model tables extended to Opus 4.7, 4.8 and Opus 5

You'll notice
Useful4 Signal5
Models Notable

Model tables now list claude-opus-4-7, claude-opus-4-8 and claude-opus-5.

claude-opus-4-7claude-opus-4-8claude-opus-5
What

The tables of recognised model identifiers now enumerate claude-opus-4-7, claude-opus-4-8 and claude-opus-5, alongside a legacy set and a display-name map.

Evidence

"claude-opus-4-8",

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 →