gpt-5.1-codex-mini · OpenAI
GPT-5.1 Codex mini is a smaller, more cost-effective, less-capable version of GPT-5.1-Codex.
GPT-5.1 Codex mini is a smaller, more cost-effective, less-capable version of GPT-5.1-Codex.
GPT-5.1-Codex Mini has a 400,000 token context window.
On AIHubMix, GPT-5.1-Codex Mini costs $0.25 per million input tokens and $2 per million output tokens. Cached input reads are billed at $0.025 per million tokens.
GPT-5.1-Codex Mini accepts text and image input.
GPT-5.1-Codex Mini supports thinking, function calling and structured outputs. Per-protocol parameter support is listed in the capability table on this page.
GPT-5.1-Codex Mini is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to gpt-5.1-codex-mini — no other code changes needed.
GPT-5.1-Codex Mini is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.
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Use GPT-5.1-Codex Mini via the AIHubMix unified API — one interface for every major LLM.