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GPT 5.3 Codex
VerifiedAn autonomous coding agent that works for hours on complex projects. You can interact with it in real time while it codes, tests, and deploys your applications. It outperforms all
About GPT 5.3 Codex
Pricing:Subscription
An autonomous coding agent that works for hours on complex projects. You can interact with it in real time while it codes, tests, and deploys your applications. It outperforms all models on SWE-Bench Pro and Terminal-Bench 2.0 while being 25% faster
Pros
- •Developer-friendly with API access.
- •Capable of autonomous agentic workflows.
Cons
- •No permanent free tier available.
- •May use submitted data for model training (check privacy policy).
Best For
- •Developer Tools