Story · Gagan Bhat & Isabella Kai He (Anthropic)
Evolution of agentic surfaces (Gagan Bhat & Isabella Kai He (Anthropic))
talk · Story page
Anthropic's Applied AI team on harness assumptions going stale: a context-reset workaround built for Sonnet 4.5 became pure overhead once Opus 4.5 shipped without the quirk. Decoupling the agent loop from tool execution cut time to first token 60% at P50 and over 90% at P95.
Appeared in
- Only 7% of agent turns needed a frontier model, and authorization drifts down hierarchies
Aug 12, 2026 · in the sections
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