For more on how businesses are accelerating AI adoption and building on OpenAI, here’s the full write-up:
@romainhuet
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AI Deployment Acceleration: 1M+ Businesses Building with OpenAI
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The shift from trying AI to deploying it is happening fast. Companies are using ChatGPT, Codex, and AgentKit to take real workflows into production in days—not months.
— Romain Huet (@romainhuet) 5 novembre 2025
Grateful and excited to see 1M+ businesses building with us at @OpenAI. https://t.co/wpoHel0E6JThe shift from trying AI to deploying it is happening fast. Companies are using ChatGPT, Codex, and AgentKit to take real workflows into production in days—not months. Grateful and excited to see 1M+ businesses building with us at @OpenAI
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Building with Codex: Sharing Feedback and Excitement
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Amazing! Please share feedback as you start building with Codex, excited to hear how it goes!
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Codex Works on Sunday, Feedback Request for Improvements
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Codex really clocked in on a Sunday, we love to see it! Anything we can do to make your flow even smoother?
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Task-dependent value of multiple attempts in AI work
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Fair point, I think it depends on the task! You may not want to review 4 attempts at writing a test suite (Codex can just get this right!), but seeing 4 screenshots of different layout variations is great for design exploration!
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Upcoming Video on Front-End Engineering with Codex and Best-of-N
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Great to hear! One of our upcoming videos will focus even more on front-end engineering with Codex in the cloud and Best-of-N. Stay tuned!
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Windows Support Experimental Codex WSL Setup Guide
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Yes! Windows support is still experimental, but the team is working to improve it. For the best Windows experience, use Codex in a WSL workspace and follow our Windows setup guide:
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Codex Agent Generated OpenAI.fm Designs Applied Locally
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Here’s the exact moment @gpeal8 locally applies the new http://
OpenAI.fm designs that the Codex agent generated in the cloud! -
Parallel Exploration with Codex: Preview and Choose Best Versions
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Parallel exploration with Best-of-N is one of my favorite Codex features! Hand off tasks to Codex in the cloud, quickly preview each version, and pick your favorite to continue in your IDE. The best part? Once you’re done being creative, just hand it back to Codex to finish!
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Codex Windows Support Improvements Underway
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The team is actively working on improving Windows support for Codex! Anything specific that would make your experience much better?