openai/gpt-5.1-codex Details | |
|---|---|
| Overview | |
| Description | GPT-5.1 Codex is a version of GPT-5.1 optimized for agentic coding inside the Codex environment, with regular underlying model refreshes. It supports a 400,000-token input context with 128,000 output tokens, accepts text and image inputs, and exposes reasoning tokens, streaming, function calling, and structured outputs. Available exclusively through the Responses API. |
| Author | OpenAI |
| Category | Text Generation |
| Context length | 400K |
| Providers | 2 |
| Pricing (per 1M tokens) | |
| Input | $1.25 |
| Output | $10.00 |
| Capabilities | |
| Reasoning | |
| Tool calling | |
| Vision | |
| Streaming | |
| Token activity (30 days) | |
| Usage | |
| Artificial Analysis | |
| Intelligence | 43.1 |
| Coding | 36.6 |
| Benchmarks | |
| GPQA Diamond | 0.9 |
| HLE | 0.2 |
| MMLU-Pro | 0.9 |
| IFEval | 0.7 |
| LiveCodeBench | 0.8 |