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Comment by espeed

6 hours ago

Claude Code's prompt cache expires after 1 hour.

The cache shouldn't affect inference. It is purely an I/O optimization.

  • I think it should, as you dont need to use the encoder layer on the new tokens, you just read the embedding from the cache. that's why cache reads are cheaper

    • I meant, it shouldn't affect the resulting LLM output. It's a performance optimization that doesn't change the behavior.