In the News: August 14, 2026, Evening
Anthropic published the cost model behind a Claude Code session, and the prompt cache expires after an hour, which prices unattended work above supervised work.
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Anthropic priced the session, and idle time is the expensive part
A first-party account of what a Claude Code turn is billed for and what breaks the prompt cache. The figures are Anthropic's own: output tokens are priced "at roughly 5x input", reading from the cache costs 0.1x the input price, and writing…
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Forked subagents now inherit the prompt cache, and the todo tools are gone on newer models
Two releases landed after this feed last covered the changelog at 2.1.224. In 2.1.232, "subagent forking is now on by default", and a forked subagent "inherits the full conversation and prompt cache".
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