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OpenAI: GPT-5.1-Codex-Mini

openai/gpt-5.1-codex-mini

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GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex

Modalities

Input Price

$0.25per 1M

Output Price

$2per 1M

Context

400K

Weekly Tokens

5.4B

Released

Nov 13, 2025

Overview
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API

Providers for GPT-5.1-Codex-Mini

OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.