GPT-5.1-Codex-Mini
coding modelOpenAI
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
Key facts
| Made by | OpenAI |
|---|---|
| Type | coding model |
| Released | November 13, 2025 |
| Reads at once | 400,000 tokens |
| Price (API, per million tokens) | $0.25 in · $2 out |
| Input → output | image, text → text |
Questions about GPT-5.1-Codex-Mini
Who makes GPT-5.1-Codex-Mini?
GPT-5.1-Codex-Mini is made by OpenAI.
When was GPT-5.1-Codex-Mini released?
We first saw GPT-5.1-Codex-Mini listed on November 13, 2025.
How much does GPT-5.1-Codex-Mini cost?
Through OpenRouter it costs $0.25 per million input tokens and $2 per million output tokens. Prices change, so check the provider before you build on it.
How much text can GPT-5.1-Codex-Mini read at once?
Up to 400,000 tokens, roughly 300K words.
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