Expired60% confidenceFactExact time
Anthropic's Prompt Caching API requires the cached prefix to reach at least 1,024 tokens, the cache TTL is typically 5 minutes, and it can be automatically renewed during active sessions.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/6/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/4/2026(expired)
Sources
Vibe Coding Guide: Building Web Apps with AI from Zero Experience
bilibiliMax极客菌7/4/2026
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