Unverified50% confidenceFactExact time
The Responses API currently provides a cache hit guarantee within 30 minutes, and has launched a preview of a 12-hour cache window for some users.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/23/2026
First Seen
Valid until: 11/6/2026
Sources
OpenAI's New Agent Stack: Computer Use, Decisions API, and Ultra-Fast Workflows
bilibiliCG骇客10/23/2026
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