01What Is the Grok 4.5 Agentic Operating System?

Grok 4.5 agentic operating system is a tool that lets you build, automate, and create using XAI's latest Grok 4.5 model. It works inside a workspace where everything you make is saved automatically.

You can use it to build websites, generate videos and images, create games, and even pull real-time news from Twitter. The best part is it costs nothing if you already have a Twitter account. Julian Goldie calls this one of the most powerful free systems available right now.

02Main Features of Grok 4.5 in the Agent OS

The Grok 4.5 model inside the agentic operating system comes with several standout features:

  • Free to use — no tokens or API fees when you log in with Twitter OAuth.
  • Creates videos, images, and 3D graphics — you can make B-roll, animations, and even Minecraft-style games.
  • Real-time Twitter access — feeds in breaking news and trending topics because Grok has the Twitter API.
  • Works with memory systems — it recalls what you did yesterday by looking at your Obsidian memory galaxy.
  • Saves everything to a workspace — no lost projects, all builds are stored and accessible later.
  • Handles agentic tasks — can code, build landing pages, and run automated workflows.

03How to Set Up the Grok 4.5 Agentic OS

Setting up the system only takes about 10 minutes. Here are the steps from the episode:

  1. Log into Hermes Agent using your Twitter account — the OAuth authentication makes Grok 4.5 available for free.
  2. Select Grok 4.5 as your active profile — in Hermes Agent, choose the Grok 4.5 model from the list.
  3. Connect the CLI tool — plug Grok 4.5 into the command-line interface to give direct instructions.
  4. Turn on the memory system — link your Obsidian memory galaxy so Grok can recall past work.
  5. Save your workspace — everything you build will be stored here automatically.
  6. Optional: add other models — you can mix in Claude, OmniRoot, or others if you prefer.

04How to Use Grok 4.5 for Building and Creating

Julian Goldie shows several examples of using Grok 4.5 in the agent OS. First, you can build a landing page by typing a command into the CLI. The system creates the page and saves it to the workspace.

To make a video, you give a single prompt describing what you want. Grok 4.5 generates the B-roll, adds an AI avatar presenter, and puts everything together. Julian shows a five-minute video created entirely with this method.

For images, you type a description like "cat eating cheese" and the system generates the picture in seconds. You can also switch to video mode and create clips from the same prompt. The agent OS also pulls in trending Twitter news, categorizes it by virality score, and lets you publish social media posts or WordPress content with one click.

05Results and Comparisons from the Episode

Julian Goldie compares Grok 4.5 to other models he has tested. He creates his own benchmark called GoldieBench and says Grok 4.5 is "right up there with Claude Opus 4.8" for coding and agentic tasks. It is not as good as Fable 5, but still very powerful.

The biggest advantage is that Grok 4.5 is free with a Twitter account, while Claude and Opus 4.8 have banned OAuth authentication. Grok 4.5 can also generate images, videos, and voice, which Claude cannot do. The system produces a 95% virality score on some trending content pulled from Twitter.

Julian notes that every creation is saved, so nothing is wasted.

06Tips, Limits and Mistakes to Avoid

Julian says most people use Grok wrong by only chatting inside Twitter. The real power comes from using the full agentic operating system. One tip is to switch models if needed — for example, use OmniRoot (a free API) if you do not want to pay for Grok.

A common mistake is ignoring the memory system, which connects all agents and syncs past work. Julian warns that Grok 4.5 alone will not replace Opus 4.8 for complex tasks, but it shines when combined with custom tools like video editors and Twitter scraping. He also recommends using the workspace to save builds so you never lose a project.

07Who Should Use the Grok 4.5 Agentic OS

This system is for anyone who wants to build and automate without spending money on tokens or APIs. If you already have a Twitter account, you can get started immediately.

Content creators can generate videos and images quickly. Developers can code landing pages and automate workflows. Business owners can pull real-time Twitter data and publish content to WordPress or social media in one click.

Julian says the agent OS is also great for beginners, with tutorials that take you from beginner to expert in six weeks inside the AI Profitable Boardroom community.