ChatGPT adds live code previews

OpenAI is turning ChatGPT from a chat interface into a lightweight coding workspace. This will not replace full IDEs, but it meaningfully reduces the friction for fast prototypes, front-end experiments, and one-off code fixes.

• –Inline editing plus preview closes the loop between generation and validation, which is where chat-based coding usually breaks down
• –Split-screen review makes iteration feel more like a real editing workflow and less like prompt roulette
• –Mini-app and diagram previews are especially useful for UI snippets, demos, and teaching use cases that need immediate visual feedback
• –The update strengthens ChatGPT's role in the vibe-coding toolchain even if serious multi-file work still belongs in dedicated developer tools