How much does gpt-5.1-codex-max cost per 1M tokens?

Pricing for gpt-5.1-codex-max is currently unpublished. Check back daily — ModelPriceLab tracks every change.

Who provides gpt-5.1-codex-max?

gpt-5.1-codex-max is provided by OpenAI. ModelPriceLab also tracks third-party platforms that resell or proxy this model.

Prices are re-verified daily from official sources. The data on this page is taken from the latest crawl run.

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OpenAI

Verified daily across official and reseller platforms. Compare cost per 1M tokens, context window, and recent API changes.

Input / 1M tokens

Output / 1M tokens

$10.00

Context window

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Last verified 2026-04-13 · openrouter

Same model, different platforms. Cached input prices apply when supported.

Platform	Region	Input / 1M	Output / 1M	Cached input	Context
openrouter	global	-	$10.00	$0.13	—

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Monthly Input (Millions)

Monthly Output (Millions)

Cache Hit Ratio20%

Percentage of input tokens that match cached context.

Monthly cost comparison

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How much does gpt-5.1-codex-max cost per 1M tokens?: Pricing for gpt-5.1-codex-max is currently unpublished. Check back daily — ModelPriceLab tracks every change.
Who provides gpt-5.1-codex-max?: gpt-5.1-codex-max is provided by OpenAI. ModelPriceLab also tracks third-party platforms that resell or proxy this model.
When was gpt-5.1-codex-max's pricing last verified?: Prices are re-verified daily from official sources. The data on this page is taken from the latest crawl run.

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OpenAI gpt-5.1-codex-max API Pricing — Token Costs & Alternatives