OpenAI Makes GPT-6 Prompt Caching 90% Cheaper and Fully Visible

OpenAI overhauls prompt caching for GPT-6 with a new dashboard, miss diagnostics, explicit breakpoints, and prewarming to cut agent latency and cost.

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2026-09-22 21:13 · AlphaSignal
OpenAI Makes GPT-6 Prompt Caching 90% Cheaper and Fully Visible

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