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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 v2.1.239

Cost is computed as a multiplied token subtotal plus web search

Under the hood
Useful3 Signal3
Cost Tracking

Request cost now multiplies the token subtotal by a per-request factor, then adds web search fees.

What

Per-request cost is no longer a flat sum. Token-based cost is multiplied by a per-request factor first, and the web search request fee is added afterwards, outside the multiplier.

Evidence

web_search_requests

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 v2.1.239 →