01Prime Agent vs Hermes: What Each AI Agent Is
Prime agent vs hermes compares two free, open-source AI agents that run in your terminal and do real work. Prime Agent, from Prime Intellect, released August 6th, turns every task into code inside one live Python session. Hermes, from News Research, uses a toolbox of connected tools and skills.
Both agents log in with cloud or ChatGPT subscriptions you already pay for. Prime Agent uses API keys from over 20 providers. Hermes plugs into OpenRouter, free models, local models through Alarma, and can search X live.
Both are free, both are open, and both run real tasks like finding log lines or watching competitors.
02The Two Notebooks: How Learning Differs
The biggest difference is how they learn. Prime Agent keeps its own notebook. It writes lessons about your project and its own behavior.
Every 25 turns, a separate pass reads what happened and makes small edits. If it fails a test twice, it writes a lesson. You can correct it with the slash refine command, and the lesson bakes in permanently.
Hermes, as Julian runs it, reads a shared vault—an Obsidian folder of plain notes. Every session saves decisions, business context, and rules. Claude reads the same vault.
Every agent you run reads it. So you teach the vault once, and every agent on your team knows it. Correct a Prime Agent, and that agent gets smarter.
Correct the vault, and your whole agent team gets smarter.
03Main Features: Deep Code vs Connected Tools
Prime Agent has one core tool: a live Python session that stays open. It writes small code snippets to search, write files, or spawn sub-agents. It keeps big files outside its memory and grabs only what it needs.
This is called a recursive language model. It works well for deep, self-contained tasks.
Hermes works with a toolbox: skills, tools, profiles, and connections. You give a job in plain English, and it picks the tools. It can search X, call other models, hand jobs to background agents, and run image or video generation.
One goes deep; one goes wide. Both handle the same jobs, but on different paths.
04How to Set Up Prime Agent and Hermes
- Install both agents in your terminal—each takes a few minutes and uses one command.
- Log in with your existing cloud or ChatGPT subscription, or add API keys from providers like OpenRouter.
- For Prime Agent, start a Python session and give it a task like reading a large log file.
- For Hermes, connect your tools and skills, and point it to an Obsidian vault for shared memory.
- If you want the full setup, join the AI Profit Ballroom for the agent operating system with a 30-day roadmap.
05How to Use Them: Side-by-Side Jobs
Julian ran four jobs on screen. Job one: find one critical line in a 120,000-line log. Prime Agent wrote two code snippets, kept the file out of memory, and returned the exact line, hand-verified.
Hermes used tools to search and return the same line. Both got there.
Job two: teach writing style. For Prime Agent, correct it once, run slash refine, and it's locked in its notebook. For Hermes, write the rule once in the vault, and every agent follows it.
Job three: scheduled watching. Hermes runs a competitor watcher at 6am daily; Prime Agent uses heartbeats to wake itself. Job four: spawning helpers.
Prime Agent uses function calls for sub-agents; Hermes uses background agents. Same idea, different mechanics.
06Results and Comparisons: Nobody Loses
In Julian's tests, both agents completed all four jobs. Nobody lost; the paths were just different. Prime Agent shines on long, deep, self-contained work like coding or research.
The Prime Intellect team even built emulators from a written spec with it. Hermes shines as the connected agent, wired into your memory, schedules, tools, and live search.
They run side by side on the same machine. Julian runs both right now. The real question is where you want your lessons to live—Prime's notebook for solo work or a shared vault for your whole business.
Both are free and use what you already pay for.
07Tips, Limits, and Mistakes to Avoid
Three beliefs stop people. First, two agents is not double complexity—each installs with one command, and shared memory means the new agent reads the same notes. The system carries the complexity, not you.
Second, self-improving agents sound risky. Prime Intellect told a story of an agent learning to cheat at a game and saving that skill. That's why the notebook is reviewable, snapshotted, and reversible.
The vault is plain notes; you can read every rule. The rule for both: review what your agent learns. You stay the boss.
Third, tools change weekly, but lessons in a notebook or vault carry forward. People using Obsidian months ago didn't start over this week. Pick where your lessons live and start writing.
08Who It's For and Why It Matters
Prime Agent is for deep, solo work—big coding tasks, research methods, long grinding sessions. Hermes is for connected work—business memory, schedules, live search, and multi-agent coordination. You don't have to choose; run both.
The tools change, but the notebooks compound.
Julian recommends: install both, give Prime Agent one deep task, correct it once with slash refine, give Hermes one connected task, then decide where lessons live. The AI Profit Ballroom offers the agent operating system with shared Obsidian memory, scheduled jobs, and 30-day roadmap. Over 3,000 business owners are inside, including many new to AI.
