Pi exposes cache behavior as a debate over agent harnesses burning KV caches heats up
mitsuhiko · x · 2026-07-23
Mitsuhiko says Pi has made its cache behavior more visible after a debate about whether agent harnesses are helping or quietly burning through caches.
The post links to an explanation of:
- how KV caches actually work,
- why cache visibility matters for LLM serving,
- and where Pi helps, or does not help, with cache efficiency.
This is an infra-focused engineering note about inference behavior rather than a model launch.
Related event: Debate: Are Agent Frameworks Burning the KV Cache?(2 posts)→
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