OpenAI
GPT-5.1 Codex
Codex GPT for repository edits, code review, and practical software agents
openai/gpt-5.1-codex
Context
400K
Output
128K
Released
2025-11-13
Knowledge cutoff
2024-09-30
Types
InputTextImage
OutputText
Reasoning
Supported
Tool use
Supported
Structured output
Supported
Attachments
Supported
Open weights
—
Provider pricing
Poe
InTextImage
OutText
- Price
- $1.10 / $9.00
- Context
- 400K
- Status
- Stable
Impossibl
InTextImage
OutText
- Price
- $1.25 / $10.00
- Context
- 400K
- Status
- Stable
Kilo Gateway
InTextImagePDF
OutText
- Price
- $1.25 / $10.00
- Context
- 400K
- Status
- Stable
NanoGPT
InTextImage
OutText
- Price
- $1.25 / $10.00
- Context
- 400K
- Status
- Stable
OpenRouter
InTextImage
OutText
- Price
- $1.25 / $10.00
- Context
- 400K
- Status
- Stable
OrcaRouter
InTextImage
OutText
- Price
- $1.25 / $10.00
- Context
- 400K
- Status
- Stable
Vercel AI Gateway
InTextImagePDF
OutText
- Price
- $1.25 / $10.00
- Context
- 400K
- Status
- Stable
ZenMux
InTextImage
OutText
- Price
- $1.25 / $10.00
- Context
- 400K
- Status
- Stable