GPT-5 Codex (batch)
OpenAI · Multimodal · Released Sep 2025
GPT-5 Codex is OpenAI's code-specialized model optimized for software engineering and programming tasks, built on the GPT-5 foundation with a 400k token context window.
- Strengths
- Delivers strong code generation, debugging, and analysis capabilities across multiple programming languages and frameworks.
- Best for
- Building and maintaining software systems, completing programming tasks, and reasoning about complex codebases.
- Limitations
- Narrow specialization makes it less suitable for general-purpose tasks; for broad reasoning and research, GPT-5 Pro or the o-series models are better choices.
Input / 1M
$0.625
Output / 1M
$5.00
Cached input / 1M
$0.0625
Context window
400K
Price history
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 6 Aug 2026 | $0.625 | $5.00 | $0.0625 | Imported from OpenRouter | openrouter.ai |