GPT-5.3-Codex Now Available in Cursor & VS Code
GPT-5.3-Codex launches in Cursor and VS Code with phased API rollout. First Codex model classified as high security capability under Preparedness Framework.
TL;DR
- GPT-5.3-Codex is now live in Cursor and VS Code
- API access rolling out in phases to a limited set of customers
- Classified as high security capability — safety controls will scale over coming weeks
New
- GPT-5.3-Codex native integration — Available directly in Cursor and VS Code for inline code generation and completion.
- Phased API rollout — Starting with a small customer set; broader access expanding over the next few weeks.
- Preparedness Framework classification — First Codex model treated as a high security capability with scaled safety controls.
To get access, check your Cursor or VS Code settings for GPT-5.3-Codex availability, or contact OpenAI for API access details at developers.openai.com.
Source: Codex
