OpenAI
GPT-5-Codex
Coding-optimized GPT model for repository edits, reviews, and agentic software work
openai/gpt-5-codex
Context
400K
Output
128K
Released
2025-09-15
Knowledge cutoff
2024-09-30
Types
InputTextImage
OutputText
Reasoning
Supported
Tool use
Supported
Structured output
Supported
Attachments
—
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
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
Benchmarks
Artificial Analysis Coding Index
38.9 · index
SciCode
40.9 · percent correct
Terminal-Bench Hard
37.9 · success rate