Checked fact 8408 Oct 2026Agents and apps

OpenAI says that across ten requests, one write and nine full reads cost 2.15 times at the 0.1 times read rate, compared with 10 times without caching. Quote: "Across ten requests, one write and nine full reads cost 2.15× at that rate, compared with 10× without caching."

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Across ten requests, one write and nine full reads cost 2.15× at that rate, compared with 10× without caching.

What the source said when we opened it, on 8 Oct 2026.

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Prompt caching
OpenAI

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Checked by the notis newsroom on 8 Oct 2026, against the source above.

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How prompt caching bills a repeated prompt start 8 Oct 2026

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“OpenAI says that across ten requests, one write and nine full reads cost 2.15 times at the 0.1 times read rate, compared with 10 times without caching. Quote: "Across ten requests, one write and nine full reads cost 2.15× at that rate, compared with 10× without caching.".” ai notis, checked 8 Oct 2026. Source: Prompt caching (OpenAI). https://ainotis.com/c/840

As a reference (APA style)

ai notis. (2026, October 8). OpenAI says that across ten requests, one write and nine full reads cost 2.15 times at the 0.1 times read rate, compared with 10 times without caching. Quote: "Across ten requests, one write and nine full reads cost 2.15× at that rate, compared with 10× without caching." [Checked claim 840]. ai notis. https://ainotis.com/c/840

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