We may earn a commission if you buy through links on this page. It never changes a score or a ranking. How we make money
It's a split decision.
Choose Hermes Agent if you want one agent across messaging platforms, persistent memory, scheduled tasks and optional cloud hosting. Its software is free under the MIT license, with hosted plans starting at $20 per month. Choose Agent Zero if you want a free, self-hosted framework for building autonomous agents and managing local or remote instances through its Launcher. Both are MIT-licensed and leave model-provider costs to your setup; neither is presented as a hosted API service.
01Side by side
| Hermes Agent | Agent Zero | |
|---|---|---|
| Pricing model | Free software; hosted plans start at $20 monthly. | Free framework; no paid plans published. |
| Free tier | Free models, standard rate limits; no hosted tools. | Free self-hosted framework; no usage caps stated. |
| Open-source licence | Open source under the MIT license. | Open source under the MIT license. |
| Self-hosting | Local, Docker, SSH, Singularity and Modal backends. | Run locally; Launcher manages local or remote instances. |
| CLI and docs | Terminal installation; docs cover setup and platform integrations. | Installation docs plus a guided desktop Launcher. |
| Integrations | Telegram, Discord, Slack, WhatsApp, Signal, email and CLI. | AI providers, plugins, browsers, local files and named services. |
| Deployment model | Desktop or optional cloud agent; five sandbox backends. | Agent runs on its own computer; Launcher manages instances. |
| Platforms | macOS, Windows, Linux and CLI. | Web interface; Launcher supports local or remote instances. |
Hermes Agent Choose Hermes Agent if
- Choose Hermes Agent if you want one agent across messaging platforms.
- Choose Hermes Agent if persistent memory and scheduled tasks matter.
- Choose Hermes Agent if you want optional managed cloud hosting.
Agent Zero Choose Agent Zero if
- Choose Agent Zero if you want a free framework without published paid tiers.
- Choose Agent Zero if you want to build and adapt agent tools.
- Choose Agent Zero if you want its Launcher to manage instances.
02Pricing at real usage
Hermes Agent's software is free under the MIT license, but hosted use has monthly plans. The pricing page lists Free at $0, limited to free models, standard rate limits, and no hosted tools or cloud agent hosting. Plus is $20 per month and includes shared usage, high rate limits, hosted tools, and one 4 GB RAM, 25 GB disk agent. Super is $100 for 5× Plus usage and one 4 GB RAM, 100 GB disk agent; Ultra is $200 for 10× Plus usage and one 8 GB RAM, 100 GB disk agent. Extra or larger cloud agents are billed daily from credits, with pay-as-you-go top-ups. Agent Zero is free under MIT and self-hosted; the vendor publishes no paid plans. You still own infrastructure and model-provider costs for either setup.
03API, SDKs and integration
Neither vendor publishes API endpoints, SDK names, or supported programming languages on its homepage. Hermes Agent is documented as an installed agent, not a hosted API: install it through its terminal command on Linux or macOS, or use its desktop app on macOS and Windows. Its docs guide setup with a model provider and messaging integrations. It connects to Telegram, Discord, Slack, WhatsApp, Signal, email and CLI, and can use Nous Portal. Agent Zero is an open-source framework installed through its guided desktop Launcher; its docs cover installation, and the Launcher manages local or remote instances. The homepage describes AI-provider and plugin support, including Salesforce, Yahoo Finance, Venice AI, local files and browsers. For either project, check the vendor docs before designing around a specific API or SDK contract.
04Open source, self-hosting and lock-in
Both projects are open source under the MIT license and can be self-hosted. Hermes offers local, Docker, SSH, Singularity and Modal sandbox backends; cloud hosting is optional. Agent Zero runs on its own computer, while its Launcher manages local or remote instances. Both can connect to AI providers, so provider pricing and availability remain part of your deployment decisions. Hermes says to back up its data directory when moving to another computer. Agent Zero's homepage recommends backing up /a0/usr. Those backup instructions give you a migration path, but neither vendor describes a formal export format in its homepage material. Before adopting either for durable workflows, check how its stored conversations, memories, skills, plugins and configuration can be moved into your own backup process.
Questions people ask
What does Hermes Agent actually do?
Hermes Agent is an AI agent you can run locally or deploy to the cloud. It connects to messaging platforms and CLI, keeps conversations, memories and skills between sessions, and supports scheduled tasks, web tools and subagents. Its sandbox options include local, Docker, SSH, Singularity and Modal.
Is Agent Zero a hosted API service?
Agent Zero is described as an open-source framework for building autonomous agent systems. Its recommended setup uses a desktop Launcher to install the software and manage local or remote instances. If you need a hosted endpoint or SDK, confirm the supported integration path with the vendor before building against it.
Can you run Hermes Agent and Agent Zero locally?
Yes. Hermes can run on a computer and offers local sandboxing, alongside Docker, SSH, Singularity and Modal backends. Agent Zero runs on its own computer, and its Launcher can manage local or remote instances. Both are self-hostable and open source under the MIT license.
Which costs more to use?
Agent Zero's framework is free under the MIT license, with infrastructure and model-provider costs left to your setup. Hermes is also free to run, but its hosted plans start at $20 per month; larger cloud agents and extra capacity can add credit-based charges. Model-provider pricing is separate.