Grok Bot vs Muse vs OpenClaw vs Hermes: Personal AI Assistants Compared (2026)
Earlier this year, personal AI assistants were mostly for early adopters, for example people using OpenClaw. Then Grok Bot came out in August and Meta Muse in September. Hermes also became a popular open-source alternative to OpenClaw. So now the question is: which one should you use?
The four fall into two groups. Grok Bot and Muse are hosted products. You sign up, and the company runs the computer, chooses which models you can use and stores your data. OpenClaw and Hermes are open-source projects that you run yourself. You choose the model provider and you control the agent's stored data. But you also have to keep the machine running. They solve the same problem in very different ways.
- Hosted agents (Grok Bot, Muse) are the easiest way to start. You don't run anything. But you also don't choose the model or where your data is stored.
- Open-source agents (OpenClaw, Hermes) let you choose the model provider and control the agent's stored data. Your prompts still go to the model provider you use, and chat apps still see your messages. You also do the maintenance: a machine, updates and security.
- All four support MCP now. The difference is who can add a server: you, or only the company.
- Pick based on the job. Errands, computer tasks and "I want to own it" each point to a different agent.
The short version
| Agent | Open source | MCP | Where it runs | Entry price |
|---|---|---|---|---|
| Grok Bot | No | Yes, plugins and custom servers | Cursor's cloud | Included with paid Cursor or SuperGrok plans |
| Meta Muse | No | Through Meta's reviewed connector directory, plus custom API connectors | Hosted, US and Canada | Free tier, then $20 or $100 a month |
| OpenClaw | Yes, MIT | Yes, native | Your own machine or server | Free, you pay for hosting and the model |
| Hermes Agent | Yes, MIT | Yes, native | Your own machine or server | Free, you pay for hosting and the model |
Prices and availability are from early October 2026. All of these change quickly.
Hosted agents
Grok Bot
Grok Bot is from SpaceXAI. You get named Bots, and each one works on a cloud computer that stays around between tasks. It has a browser, a filesystem and a terminal. You send messages to your Bots from the desktop or mobile app. They keep working when your laptop is closed.
What I like:
- Several Bots, one team. They run at the same time, send messages to each other and pass tasks to each other.
- Skills from a demo. You show a Bot a workflow once. It can save it as a skill and run it on a schedule.
- Easy MCP. You install connectors as plugins from the Marketplace. You can also add your own MCP servers.
What to know:
- No self-hosting. Its main computer runs in Cursor's cloud. You can't host it yourself. It can reach private networks, and it can optionally run commands on your own computer.
- One computer per user. All your Bots share the same files, browser sessions and logins. Different Bots are not separated for security.
- No model choice. The model is chosen for you.
Pricing: it comes with every paid individual Cursor plan and Cursor Teams, or with a linked SuperGrok subscription. Usage limits reset every week.
With MCP it can also control other machines, for example an Upstash Box used as a second remote computer.
Meta Muse
Muse is Meta's agent for everyday users. It runs on its own "Muse Secure VM" with its own browser. You talk to it in the Muse app or in WhatsApp.
What I like:
- Easy to use. It's made for errands: email, bookings, shopping and plans.
- Careful safety design. A separate agent called Sentinel has to approve everything Muse sends to the internet. Muse can't see your passwords or payment methods. Payments with the Link wallet use single-use card numbers, and you have to approve every purchase.
- Free to start. Most everyday use is free.
What to know:
- Only some countries. It started in the US and is now also in Canada. It's not in other countries yet.
- Only Meta's model. It runs on Muse Spark.
- Training is on by default. You can turn off the use of your conversations for training Meta's models.
- MCP is for developers, not users. Meta's connector platform accepts MCP servers, but Meta reviews them before they appear in the directory. Separately, Muse can write its own custom connectors for services that have an API or CLI.
Pricing: free with a weekly limit, then $20 a month for Power or $100 a month for the top plan.
Open-source agents
OpenClaw
OpenClaw has the most GitHub stars of the four. It's an open-source personal assistant. It runs on your own machine and talks to you in chat apps you already use: WhatsApp, Telegram, Slack, Discord, iMessage, Signal, Teams and more. One Gateway process connects your model, your tools and your chat apps.
It has an MIT license and more than 390k GitHub stars.
What I like:
- Many chat apps. WhatsApp, Telegram, Slack, Discord, iMessage, Signal, Teams and 20+ more.
- Any model. You use your own provider.
- Large ecosystem of skills and community guides.
- MCP in both directions. It connects to MCP servers that you add in its config or with the
openclaw mcpCLI. Withopenclaw mcp serve, other MCP clients can access its conversations. - Scheduled automations. Cron expressions, fixed intervals, one-time timers and event triggers.
What to know:
- You run it. You take care of the daemon, the updates and the chat app setup.
- Tools run on the host by default, unless you set up sandboxing.
- Be careful with skills. This year, security researchers found hundreds of malicious skills on ClawHub. Read what you install.
Where it runs: macOS, Linux or Windows. So a laptop, a Mac mini, a VPS, or a cloud sandbox like Upstash Box (setup guide). Tools run on the host, so it's safer to use a machine that is not your personal one.
Hermes Agent
Hermes Agent is from Nous Research. It's a popular open-source alternative to OpenClaw. It has a terminal UI and a messaging gateway (WhatsApp, Telegram, Slack, Discord, Signal, email and more). It also has its own cron scheduler, memory across sessions, and a learning loop that turns repeated work into skills.
It has an MIT license and more than 250k GitHub stars.
What I like:
- Any model, easy to change. Run
hermes modelto switch to another provider. - Choose where commands run. The agent's shell commands can run locally, in Docker, over SSH, or in cloud sandboxes like Modal and Daytona.
- MCP in both directions. It connects to MCP servers, and it can also be an MCP server with
hermes mcp serve. - Scheduled jobs with delivery. For example, "Send me a summary every morning" arrives in your chat.
What to know:
- You manage the config, secrets and updates.
- The install is big. It needs a real machine with enough memory.
- Smaller ecosystem than OpenClaw, but it's growing fast.
Where it runs: the gateway also runs the cron scheduler, so it needs a machine that is always on. This can be a $5 VPS, a GPU machine, or a cloud sandbox like Upstash Box (setup guide, and a WhatsApp walkthrough). Modal and Daytona are execution backends. They run the agent's shell commands, not the gateway.
Where do the open-source ones run?
With hosted agents, you don't need to think about this. With open-source agents, you do. A messaging assistant is only useful if it replies, so it has to stay on.
- Your laptop. Good for trying it out. It stops when you close the lid, and the agent runs next to your own files and logins.
- A Mac mini or home server. Always on and cheap once you own it. Useful if you want the agent near your own devices. You maintain the hardware and the network.
- A VPS. Always on and reachable from anywhere. You maintain the server: updates, disk, a process manager and firewall rules.
- A cloud sandbox. An isolated Linux machine that you don't have to manage. For a chat gateway it has to stay on, like a keep-alive Upstash Box with an init script that restarts the gateway. Sandboxes that sleep when idle are better for the agent's shell commands (Hermes can send those to Modal or Daytona) than for the gateway. Scheduled jobs only run while the gateway is running.
In every case, the idea is the same: give the agent its own computer, not yours, and keep its config, memory and sessions on a machine you control.
How I'd pick
You want help with errands and don't want to run anything: Muse. It does email, bookings and shopping, works in WhatsApp, and is mostly free. You can only use Meta's model, and it's only in the US and Canada.
You want real computer work done across your apps: Grok Bot. Each Bot has its own cloud computer, so it can build things and keep working while you're away. You don't choose the model, and everything runs in Cursor's cloud.
You want to own the setup and use your chat apps: OpenClaw. It works in 20+ chat apps, you use your own model, and the ecosystem is large. You do the updates, and you should read every skill before you install it.
You want an assistant that learns your routines: Hermes. It turns repeated work into skills and changes models with one command. The install is bigger and the ecosystem is smaller.
You want it on 24/7 on a machine you control: pick either open-source one and run it on a machine that is not your laptop. A Mac mini, a VPS, or a keep-alive Upstash Box keeps it running when you close the lid. You maintain that machine, and your prompts still go to your model provider.
Whichever one you choose, start with read-only tasks. Give it more access as you trust it more. Every one of these can send, buy or delete things if you let it.
You may also end up using more than one. If you use Grok Bot for work and Muse for errands, each one needs its own access to your Gmail, Calendar or Slack. A tool like Upsy sits between your assistants and your apps. You connect your apps once. Then for each assistant and each app, you choose: full access, read-only, specific actions, or nothing. It keeps a history of what each assistant did, and it alerts you when an assistant deletes, sends or reads a lot at once.