# OpenAI Developers improves prompt caching for GPT-6 in the API

Higher default cache-hit rates let more GPT-6 input tokens receive cached-input discounts of up to 90%. OpenAI Developers says the change helps agents run faster and cost less.

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Source: OpenAI Developers · Published 9/22/2026, 14:22:55

OpenAI Developers has improved prompt caching in the API for GPT-6. Cache-hit rates are higher by default, so more input tokens can receive cached-input discounts of up to 90%.

OpenAI Developers says the change helps agents run faster and cost less.

Tags: OpenAI, GPT-6, Prompt caching, API, Pricing

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