Source Intelligence

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 v2.0.0

Model Display Names

What: Clearer model naming in UI

Changes:

  • "Sonnet 4.5" for the new default model
  • "Sonnet 4.5 (with 1M token context)" for extended context variant
  • Consistent capitalization and formatting
  • Evidence: UeA() function at line 368322, JM() at line 368327, lJA() at line 367531 in v2.0.0

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 v2.0.0 →