# GPT-5.3 Codex

**Provider:** openai
**Released:** 2026-02-24
**License:** proprietary
**Context window:** 400,000 tokens
**Modalities:** text, code

**Pricing** (as of 2026-05-09):
- Input: $1.75/M tokens
- Output: $14/M tokens

## Timeline

_No events recorded yet._

## Sources
- https://openrouter.ai/api/v1/models