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Prompt Caching

1 TokenPost story is tagged Prompt Caching. The newest appear first.

Latest Prompt Caching stories

• OpenAI Adds 12-Hour Minimum Prompt Cache for GPT-5.6 and Later

  The longer API setting costs 2.5 times the standard input rate to write. Signed-in Codex and ChatGPT Work users also retain cached context indefinitely.

  Oct 21, 2026, 7:38 AM EDT · Technology