Codex just got better for developers
Summary
OpenAI merged Codex into ChatGPT with 150+ updates, introducing GPT-4.5 Sol with computer vision automation that can control your screen, browser-based app deployment via Sites, and autonomous task management—6M weekly developers can now go from idea to deployed full-stack app without infrastructure overhead.
Key Takeaways
- GPT-4.5 Sol with Ultra mode enables autonomous computer use—Codex can screenshot apps, navigate interfaces, and click through simulators in parallel while you continue working, 3-5x faster than previous versions.
- Sites feature provides built-in hosting, authentication, persistent database, and file storage—developers can deploy production-ready full-stack applications directly from Codex without managing infrastructure.
- Codex now auto-creates and coordinates subtasks across multiple projects—can find bugs, create isolated worktrees, prioritize work, and organize via a single coordinating thread with cross-task references.
- Visual-to-code workflow: annotate changes directly on screenshots and rendered apps; Codex interprets visual context and generates precise code diffs with inline editing—bridges design and development.
- Mobile-first task management—create, search, and manage Codex tasks from phone; filter PR changes, connect to SSH dev boxes, and start new tasks on-the-go while keeping desktop work in sync.
Related topics
Transcript Excerpt
This is a big moment for Codex and I'm really excited to show you what's new for developers. Today, more than 6 million of you use Codex every week. Along the way, you've shared feedback, shown us what you're building, and you set an incredibly high bar. You've asked Codex to ship ambitious projects and help you stay organized beyond the code. You've helped shape Codex at every step, so before I show you anything, thank you. Codex and ChatGPT are now coming together into one app. For developers, it's the same Codex you know and love. It now lives right here in ChatGPT with its own dedicated space next to the new work agent. We've been shipping new improvements every week, more than 150 updates over the past two months, and we're just getting started. Let me show you a few of my favorites. …