GPT-5.3-Codex
AvailableGPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results...
- Context
- 400K tokens
- Max output
- 128K tokens
- Input / 1M tokens
- $1.75per 1M tokens
- Output / 1M tokens
- $14.00per 1M tokens
- Listed since
- Feb 24, 2026
Prices and model data from OpenRouter
Where it's availableProviders · 1
| Provider | Input / 1M tokens | Output / 1M tokens | Status |
|---|---|---|---|
| OpenRouter | $1.75 | $14.00 | Available |
Published benchmark results
From independent leaderboards, each credited to its publisher.