AI :: OpenAI :: Codex :: Training :: OpenAI Codex AI Agent Builds Custom Software in Minutes - Full Tutorial
⪼ Made with 💜 by Polyglot.
This video is a tutorial aimed at educating and inspiring viewers to build custom software using OpenAI's Codeex, a new AI coding agent. The creator walks through how to use Codeex to fork open-source projects (like Bolt or DeepSeek), customize them, and turn them into unique software platforms—even for non-coders. With real-time demos, the video shows Codeex's power to debug, refactor, add features, and manage GitHub integration, all with natural language prompts. The overarching message: you don’t need to be a traditional developer to launch robust, customized software.
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What is Codeex: An AI coding agent by OpenAI that writes, refactors, debugs, and tests code on demand—available to Pro and Team users of ChatGPT.
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Why it matters: Codeex can accelerate development by 10x and eliminate the need for traditional dev workflows, especially for solo founders and product builders.
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Two traditional ways to launch software:
- White-label software like GoHighLevel (easy, but inflexible and obvious).
- Prompt-based builders like Bolt or Lovable (faster, but limited backend functionality).
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How Codeex is different:
- Works with existing codebases.
- Enables advanced backend features.
- Allows complete customization—your own features, logic, and identity.
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Workflow demo:
- Connect Codeex to GitHub.
- Fork open-source projects from GitHub (e.g., Bolt, DeepSeek, 20).
- Ask Codeex to explain the code structure, refactor, find bugs, and suggest features.
- Add new features or rename elements using simple prompts.
- Push changes directly into GitHub as pull requests with Codeex auto-summarizing the work.
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Examples shown:
- Modified version of Bolt (a Vibe coding platform).
- Custom CRM using 20.
- Forked DeepSeek to build a personalized LLM.
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Power features:
- Runs multiple tasks in parallel.
- Logs every task's steps and shows diffs in GitHub-style track changes.
- Suggests custom features and generates code automatically.
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Final takeaways:
- Anyone can now launch tailored software products using open-source code + AI.
- You’re only limited by imagination; coding knowledge is no longer a barrier.
- Creator offers a free AI course on monetizing this skillset.

