OpenAI: GPT-5.1-Codex
openai/gpt-5.1-codex
GPT-5.1-Codex is a specialized version of GPT-5.1 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
Prompt $/1M
$1.250
Completion $/1M
$10.000
Context
400,000 tok
Best provider
217 tok/s · Artificial Analysis
Specs
- Model id
- openai/gpt-5.1-codex
- Display name
- OpenAI: GPT-5.1-Codex
- Modality
- text+image->text
- Tokenizer
- GPT
- Instruct type
- —
- Context length
- 400,000
- Max completion
- 128,000
- Prompt $/1M
- $1.250
- Completion $/1M
- $10.000
- Free tier
- no
Capabilities
- Function callingno
- JSON modeno
- System promptno
- Visionno
- Moderatedyes
Benchmark scores
Each axis is one benchmark, normalized to the best model in the field.
No benchmark data for this model.
Speed by provider
| Provider | tok/s |
|---|---|
| Artificial Analysis | 217 |
| OpenAIfastest | 89 |
| Azure | 84 |
| openaifastest | — |