OpenAI
GPT-5.3 Codex
Coding-optimized GPT model for repository edits, reviews, and agentic software work
openai/gpt-5.3-codex
Context
400K
Output
128K
Released
2026-02-05
Knowledge cutoff
2025-08-31
Types
InputTextImagePDF
OutputText
Reasoning
Supported
Tool use
Supported
Structured output
Supported
Attachments
Supported
Open weights
—
Provider pricing
Poe
InTextImage
OutText
- Price
- $1.60 / $13.00
- Context
- 400K
- Status
- Stable
Eden AI
InTextImagePDF
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
FastRouter
InTextImagePDF
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
Impossibl
InTextImagePDF
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
Kilo Gateway
InTextImagePDF
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
LLM Gateway
InTextImagePDF
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
NanoGPT
InTextImagePDF
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
Ofox
InTextImagePDF
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
OpenRouter
InTextImagePDF
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
OrcaRouter
InTextImagePDF
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
Prime Inference
InTextImage
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
Vercel AI Gateway
InTextImagePDF
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
ZenMux
InText
OutText
- Price
- $1.75 / $14.00
- Context
- 400K
- Status
- Stable
AI/ML API
InTextImagePDF
OutText
- Price
- $4.81 / $38.51
- Context
- 400K
- Status
- Stable
Benchmarks
SWE-Atlas Codebase QnA
32.6 · score
SWE-Atlas Refactoring
42.38 · score
SWE-Atlas Test Writing
38.98 · score