01What 'Run Codex for Free' Means
Run Codex for free means using OpenAI's Codex coding agent with a free model provider instead of your paid token quota. Codex is a powerful agent that plans, writes, and builds entire apps. The catch is that every task uses tokens that run out fast.
This episode shows how to avoid that by plugging in a free model called OmniRoot.
OmniRoot gives you access to over 90 free providers, and you can also use another free model called HY3. The whole setup is wrapped into AgentOS, an agent operating system that makes it simple. The trick is a small file that tells Codex to use the free brain instead of your OpenAI login.
02How the Free Codex Engine Works
Codex has three parts. The hands are Codex itself—it writes files, runs commands, and checks its work. The brain is the model you plug in, like OmniRoot or HY3.
The swap is the single file that redirects Codex to the free provider.
- OmniRoot: A free API that runs on your own machine, giving you a local address to point Codex at.
- HY3: Another free model that works the same way, but only until July 21st.
- AgentOS: The system that ties everything together with memory, tools, auto-approve, and goal mode.
The best part: your normal OpenAI login stays untouched. Everything is separate and clean.
03Setting Up the Free Codex Setup
- Install the Codex CLI (the hands) – it's free and always has been.
- Set up OmniRoot or HY3 to get your free API key or local address.
- Edit the one Codex profile file to point to your chosen free model.
- If using HY3, drop in your key; if using OmniRoot, point to the local address.
- Start Codex in AgentOS and confirm it's using the free brain.
Once set, you can start building right away. For those who want it pre-built, the full AgentOS with the free Codex engine is available in the AI Profit Boardroom with a step-by-step video and zip file.
04Using Codex to Build Apps and Pages
You can tell Codex in plain words what to build. For example, ask it to create a landing page for the AI Profit Boardroom that shows how AI automation saves time and brings customers. Codex builds the whole thing while you wait.
- A signup page for a free workshop.
- A quiz that helps people choose the right AI tool.
- A landing page that explains your offer clearly.
You don't need design skills or code. Just describe what you want, and Codex builds it. Goal mode is even more powerful: you set a goal and it runs for hours on its own.
You can set it at night and wake up to a finished website.
05Results and Comparisons in the Episode
The episode shows a side-by-side of the old way vs. the new way. Old way: every task burns tokens, so you hold back and stop experimenting. New way: one profile file sets up a dropdown to pick your brain, and everything runs free.
They tested a 260k context window agent for free—meaning the agent can hold a lot in its head at once. That's bigger and better than before. The chat GPT app rebranded from Codex to Chatwork, which can lose your work.
But in AgentOS, everything is saved, and you can return to projects later.
06Tips, Limits, and Mistakes to Avoid
Free models used to fall apart on tool calls—they'd freeze mid-job. But with Codex handling the doing and the free brain handling the thinking, it just works. Still, there are limits.
- HY3 is free only until July 21st; after that, rely on OmniRoot (free forever).
- Rate limits can happen—switch to another free model via the dropdown.
- Don't build inside the ChatGPT app; use the AgentOS workspace to avoid losing projects.
Avoid being afraid to let agents run. Since it's free, throw 10 ideas at it, let it fail, fix it, and run again. That's how you improve.
07Who Should Use the Free Codex Setup
This is for anyone who wants to build tools or websites without paying for tokens. Julian Goldie says he's not a coder, yet he runs this daily. Over 198 pages of community members use AgentOS, and they're not technical either.
If you want a headstart while others burn through limits, this gives you an edge. You can automate real business work—pages that bring in customers, tools that save time, apps for your team. Once the cost is zero, you stop being careful and start experimenting, which is how you truly get good at AI building.
08Inside the AI Profit Boardroom with Codex
If you want the whole setup ready to install, join the AI Profit Boardroom. It includes the full AgentOS with the free Codex engine, daily tutorials, weekly coaching calls, a memory system, a prompt library, and a member map.
Business owners already use this to save hours weekly. The link is in the comments or at aiprofitboardroom.com. You can also join the free AI Success Lab for SOPs, over 100 AI use cases, and access to over 85,000 members.
Watch the episode for the full walkthrough video.
