01What Hermes Agent vs Odysseus Means

Hermes Agent vs Odysseus is a comparison between two open-source AI agents. Odysseus is a new AI agent from PewDiePie that works like an agentic operating system. It has a full user interface built in.

Hermes is a standalone AI agent that can run in a desktop app or be plugged into a larger agent operating system.

In this episode, Julian Goldie tested both agents side by side. He used the same model in both to see which performs better. The goal was to find out which one is the best for different needs.

02Main Differences Between the Two AI Agents

The main difference is how each agent is designed. Odysseus is a polished single app that you run and manage yourself. Hermes is a standalone agent that can be orchestrated with other AI agents.

  • Odysseus is meant to be used alone, not inside a system of agents.
  • Hermes can be integrated into an agent operating system or with tools like Paperclip.
  • Odysseus has a built-in UI, while Hermes can be customized.
  • Odysseus focuses on local models, while Hermes supports cloud models.

Odysseus feels like a workspace with an AI model underneath. Hermes is more like a flexible agent that can work with multiple systems.

03Setting Up Odysseus and Hermes

Getting started with each agent is different. Odysseus is free and open source. You can follow the setup instructions on the GitHub page.

If you do not have technical skills, you can use cloud code to set it up for you.

  1. Go to the Odysseus GitHub page and read the setup instructions.
  2. If needed, use cloud code to run the setup.
  3. For Hermes, download the desktop app or plug it into an agent operating system.
  4. Configure the memory system for Hermes if you want one.
  5. For Odysseus, set up local models as recommended in its cookbook.

Both agents are open source, so you can get them for free.

04Using the UI and Memory Features

The user interface of each agent is very different. Hermes has a clean and organized terminal or agent OS interface. Odysseus can be messy because tools like email open in pop-ups.

If you switch between tools, you can end up with three or four pop-ups stacked on each other.

The memory system is another big difference. Hermes lets you plug in any memory system you want. It has a full setup for memory status, and you can link it to live tools like Obsidian.

Odysseus allows manual memory imports, but it does not link live to external systems. You type everything in manually.

Odysseus's brain is built into the app. This means it is not shared across agents. Hermes is designed so that you can configure optional memory that works across different agents.

05Testing Results with Gemma 4

Julian tested both agents with the same model, Gemma 4. For general day-to-day responses, they performed very similarly. Hermes was a little more in depth, but there was no big difference.

However, the UI experience was different. Hermes is more customizable. You can build unique setups like live voice agents or integrate it into mission control.

Odysseus comes with a fixed UI that you cannot change.

Odysseus has specific sections for calendar and email. This makes it shine when you want a tidy app with those features built in.

06Tips, Limits and Mistakes to Avoid

There are several important limits to know about. Odysseus is not designed to be integrated with other agents. It is a standalone system.

If you try to plug it into an agent operating system, it will not work well.

  • Do not expect Odysseus to have a living memory shared across agents.
  • Be careful with the pop-up UI in Odysseus to avoid clutter.
  • For Hermes, take advantage of the configurable memory for best results.
  • Odysseus pushes local models, so be ready for that.
  • Hermes can run 24/7 in the background, which Odysseus cannot do.

If you do not customize your agent, you cannot improve it. Standalone apps like Odysseus may be replaced in six months when new tech comes out. Hermes is built to be swapped and changed.

07Who Should Use Each Agent and Why

Odysseus is great for people who are new to AI agents. It is also good for those who want to run local models and keep everything private. If you enjoy self-hosting and want a team of one agent, Odysseus is a solid choice.

Hermes is better for power users who want many agents working together. It can run in the background all the time, even when you are not hosting it locally. It is designed to be orchestrated across multiple agents.

Julian personally prefers Hermes Agent. He likes that it can be molded around his needs and keeps improving with self-learning loops. The ability to build teams and systems is important for getting real value.

08Why Customization Matters for Future Proofing

The AI industry moves fast. Agents that are popular today might be gone in six months. Odysseus is a cool app, but it is isolated.

When something new comes out, you may have to replace it.

With an agent operating system like the one Julian uses, you can swap agents easily. For example, if a new model like Minimax M3 drops with a voice agent, you can plug it into your system quickly.

Standalone apps like ChatGPT have not changed much in years. They are not molded to your needs. Hermes, on the other hand, has a trajectory of constant improvement.

That is why it remains useful over time.