01What is Fable 5 and how it works

Fable 5 is an AI model inside Claude that can build games, videos, and automation tools from simple prompts. It works like a coding assistant that creates complete projects in one or two clicks.

In this episode, Julian Goldie shows how Fable 5 can generate full video intros, flight simulators, and even Doom-style games. You can go back and forth with it to improve your creations, which makes it fast for building useful tools.

But the catch is time: Fable 5 is only included in the Claude subscription for 24 hours. After that, you have to pay for API access. Julian advises making the most of it while it lasts.

02Top features of Fable 5 and what's new

Fable 5 can create high-quality videos and games. Julian shows examples like a parachute simulator, a flight simulator, a GTA-style driving game, a Minecraft-like game, and a Skyrim-style game. All of these were built without manual prompts.

  • It creates fully automated video intros that look professionally edited.
  • It builds playable games with smooth graphics and detail.
  • It can automate SEO tools, research agents, and content systems.
  • It supports forking conversations for parallel agent work.
  • It can integrate free APIs like OmniRoot for unlimited coding.

Julian says it's the best edited video from an AI he's tested, and it's by far the most impressive singular model for building things.

03How to set up Fable 5 before it's too late

  1. Open your Claude subscription and find Fable 5 in the model list.
  2. Check if you have tokens left and start a new conversation.
  3. Use a clear prompt describing what you want to build, like a game or a tool.
  4. Go back and forth with Fable 5 to refine the output until it works.
  5. Fork the conversation to create parallel agents in the same workspace.
  6. Pin important conversations to keep them accessible in your agent OS.

If you don't know what to build, first track your daily tasks. Julian suggests using a stopwatch to see where you spend the most time, then ask Fable 5 to automate those tasks.

04How to use Fable 5 to build games and tools

Julian shows several examples. For games, you just give a prompt like "build a flight simulator" and Fable 5 codes it instantly. He notes that 90s kids paid for such games, but now they're free to create.

For business tools, he built an SEO research tool, a video agent, and a content deployment system. He also created Hermes Oracle, which refreshes every four hours to show trending AI topics and suggests content angles.

He even integrated OmniRoot, a free AI coder API, into Claude and Codex. Fable 5 coded for 30 minutes and set up a workspace with previews, making the whole system free forever.

05Results and comparisons from testing

Julian tested Fable 5 on 48 tests and it ranked number three overall. The top two were systems like Fusion and Hermes Mixer of Agents, but those are panel systems that require waiting 10 to 15 minutes for outputs.

Fable 5 is the only one where you can interact back and forth, making it the fastest for building quality tools. Julian says it outperforms every singular model he's tried.

He also shows real results: games run smoothly, videos look professionally edited, and automation systems work as intended. The voice agent, Hermes Apollo, gives full transcripts of projects you've coded.

06Tips, limits, and mistakes to avoid with Fable 5

Don't wait until the last minute. Julian says to run Fable 5 on a loop to build everything you need before it's removed. Also, avoid spending time on tasks you can automate; instead, focus on high-return automations like SEO and content.

  • Use the stopwatch method to find out what tasks take hours daily.
  • Build tools that are the biggest return on your time.
  • Don't expect perfection on the first try; edit later with Opus 4.8 for free.
  • Use forking to run multiple agents in parallel.
  • Don't forget that Fable 5 will be gone in 24 hours; only API remains.

Even if you fail, you lose nothing since you already paid for the subscription tokens.

07Who should use Fable 5 and why it matters

Fable 5 is for anyone with a Claude subscription who wants to automate work or build creative projects. Julian is not a coder, but he built an entire system with it. You can too.

It matters because it could be the only time such a powerful model is included in a subscription. Julian says we might look back and wish we did more with it.

If you want to build an Agent OS, you can get it inside the AI Profitable Boardroom. People in the community set it up in about 10 minutes, saving hours of work.