Codex IDE extension

Ai Tool

Codex IDE extension aids developers with code suggestions and completions.

article 2 storys calendar_today First seen: 2025-12-30 update Last seen: 2026-02-09 open_in_new Website menu_book Wikipedia

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OpenAI recommends GPT-5.3-Codex as the default agentic coding model

OpenAI now recommends GPT-5.3-Codex as the default Codex model, signaling a step-up in agentic coding and reasoning for real-world engineering. The official Codex Models page highlights GPT-5.3-Codex as the most capable, with GPT-5.2-Codex as predecessor and a smaller GPT-5.1-Codex-mini option for cost-sensitive tasks [OpenAI Codex Models](https://developers.openai.com/codex/models/)[^1]. An anecdotal report describes spending $10,000 to automate research with Codex, indicating emerging large-scale usage patterns [Practitioner report](https://links.tldrnewsletter.com/J7poJAf substantial Codex-driven automation and spend.

calendar_today 2026-02-07

openai codex gpt-53-codex gpt-52-codex gpt-51-codex-mini

Update: Codex IDE extension

OpenAI updated the Codex IDE extension docs with a direct Visual Studio Code Marketplace link and separate downloads for VS Code, Cursor, Windsurf, and VS Code Insiders. It also clarifies Windows support via WSL with a dedicated setup guide and adds tips for placing Codex in the right sidebar and handling Cursor’s horizontal activity bar. Core capabilities remain the same; this update focuses on installation and UX guidance.

calendar_today 2025-12-30

ide vs code developer tools coding agents openai