# GPT-5.1-Codex-Mini: AI model fact sheet

- **Provider:** openai
- **Released:** 2025-11-13
- **Context window:** 400,000 tokens
- **API pricing:** $1.50 / 1M input, $6.00 / 1M output
- **OpenRouter ID:** openai/gpt-5.1-codex-mini
- **Capabilities:** conversation, reasoning, code-generation, analysis

GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex, optimized for coding tasks with lower latency while maintaining strong code generation capabilities.

## Benchmarks

| Benchmark | Score |
| --- | --- |
| SWE-bench Lite | 62% |

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/gpt-5.1-codex-mini