Hermes Agent
FreemiumThe self-improving AI agent.
Published 27 September 2026 · Last updated 2 October 2026
Scores
Popularity5/5
230K+ GitHub stars within months of a February 2026 launch is exceptional growth, placing it among the fastest-adopted open-source agent projects of the year, just behind OpenClaw in this subcategory.
Learning Curve3/5
Getting a first session running via a messaging app is quick, but self-hosting the gateway and understanding how the learning loop and skills system evolve behavior over time takes more hands-on exploration.
Flexibility5/5
A skill-learning loop, a 90,000+ entry community skills registry, six messaging integrations, and multi-provider model support make it one of the most extensible agents in the category — behavior can genuinely evolve rather than staying fixed.
Performance4/5
The three-layer memory and skill-reuse loop let it improve on repeated task types over time, though as with any general agent, output quality still ultimately depends on the underlying model and the quality of applicable learned skills.
Portability5/5
MIT-licensed, self-hosted on the user's own hardware or a small VPS, and model-agnostic across multiple LLM providers — no vendor lock-in on the platform itself.
About Hermes Agent
Hermes Agent is an open-source, MIT-licensed autonomous AI agent built by Nous Research. Its defining feature is a closed learning loop: after a complex task it writes down what it worked out as a reusable skill, improves that skill when it is used again, and keeps notes about you and your environment between sessions. Memory is two small files the agent curates itself, one for what it has learned and one for your preferences, plus a searchable history of past conversations. Skills follow the open agentskills.io format, and a Skills Hub lets you install ones that others have published.
Hermes runs on your own machine or server, where a small VPS is enough for always-on use, or as a managed instance on Hermes Cloud, which Nous Research bills by the day while the instance runs. A single gateway process connects it to Telegram, Discord, Slack, WhatsApp, Signal, email, and a terminal. The model is your choice: Hermes works with many providers and with local endpoints, and Nous Portal, a separate subscription from Nous Research, puts model access and hosted tools such as web search and a cloud browser under one login. The commands it runs can execute locally, in Docker, over SSH, or in a cloud sandbox.
The learning loop is general-purpose: it applies to everyday work such as research, scheduling, and automation, not only software engineering inside a codebase, although it handles coding tasks too.
Key Features
- Closed learning loop that writes reusable skills from experience and improves them in use
- Persistent memory in agent-curated files, plus full-text search over past conversations
- Skills Hub and the open agentskills.io format for installing skills others have built
- One gateway process across Telegram, Discord, Slack, WhatsApp, Signal, email, and a terminal
- Self-hosted on your own hardware or a small VPS, or a managed instance on Hermes Cloud
- Works with many model providers and local endpoints, switched with one command
- Seven terminal backends, including Docker, SSH, and the Modal and Daytona cloud sandboxes
- MIT-licensed and open source
Pros
- A built-in skill-learning loop rather than a static prompt and tool set
- A community skills ecosystem means less need to build capabilities from scratch
- Self-host for full control, or use Hermes Cloud for a managed, always-on instance
- Reachable across the messaging apps you already have open
- Nous Portal puts models and hosted tools under one subscription, so there are fewer API keys to collect
Cons
- Learning-loop behavior is less predictable than a static agent because skills evolve over time
- Self-hosting needs more technical comfort than a managed assistant, and Hermes Cloud bills the instance by the day with model usage on top
- A young project, so governance and long-term stability are less proven than established tools
- Skills from a large open registry carry the same trust and quality-variance concerns as any open plugin ecosystem
Hermes Agent Pricing
Freemium- · Free, MIT-licensed software that runs on your own hardware or a small VPS
- · Bring your own LLM provider
- · Subscription for model access, separate from Hermes Cloud
- · Free models only
- · $0 monthly credits
- · $22 monthly credits (10% bonus)
- · $10 rollover cap on unused credits
- · Access to 200+ models
- · Hosted tool usage included
- · $110 monthly credits (10% bonus)
- · $50 rollover cap on unused credits
- · Access to 200+ models
- · Hosted tool usage included
- · $220 monthly credits (10% bonus)
- · $100 rollover cap on unused credits
- · Access to 200+ models
- · Hosted tool usage included
- · $0.56 per day while running, $0.03 per day stopped
- · Hosted, always-on instance: 2 GB RAM, 4 vCPUs, 10 concurrent sessions
- · Model and tool usage billed separately
- · Needs $2 in credits or an active Nous Portal subscription to deploy
- · $1.09 per day while running, $0.03 per day stopped
- · 4 GB RAM, 8 vCPUs, 20 concurrent sessions
- · Model and tool usage billed separately
Tech Stacks with Hermes Agent
Hermes Agent Self-Hosted
InfrastructureRun Hermes Agent, Nous Research's open-source agent that writes its own skills as it works, in Docker on your own server or home hardware. It answers in your messaging apps, runs on a low-cost model such as DeepSeek or a frontier one such as Claude, and keeps its dashboard private behind an SSH tunnel.
Tools Related to Hermes Agent
Works well with Hermes Agent(2)
Hermes Agent running persistently on a VPS is typically accessed remotely through a private Tailscale network rather than an open public endpoint.
Hermes Agent uses OpenRouter, a featured integration in OpenRouter's own materials, to route model calls across providers.
Integrates with Hermes Agent(2)
Hermes Agent includes Modal as one of its terminal backends, so the agent's shell commands run in serverless Modal containers instead of on the host machine.
Hermes Agent includes Daytona as one of its terminal backends, running the agent's commands in a Daytona sandbox that hibernates when idle.
Alternatives to Hermes Agent(7)
Hermes Agent and OpenClaw are the two closest alternatives in Autonomous Agents — both are free, MIT-licensed, self-hosted personal agents reachable via messaging apps; OpenClaw has the largest and fastest-growing community, Hermes differentiates with a built-in skill-learning loop.
Meta Muse is a managed consumer agent with nothing to install; Hermes Agent is a free, self-hosted agent with a skill-learning loop that runs on your own server with whichever model provider you choose.
Hermes Agent is a personal agent that learns reusable skills from its own experience and runs self-hosted or on Hermes Cloud; AutoGPT is a business platform of role-based AI Experts and visual workflows. Pick Hermes for one assistant that improves over time, AutoGPT for scheduled business workflows.
Hermes Agent is a free, self-hosted personal agent with a built-in skill-learning loop; Manus is a paid, fully-managed cloud agent focused on finished deliverables — alternatives representing self-hosted, evolving open-source control versus a zero-setup managed product.
Dots are managed by OpenAI and run only on its models inside ChatGPT; Hermes Agent is open source and self-hosted, so the agent, its memory, and the model choice stay on your own server.
Viktor is a managed service for team workloads with 3,200+ business integrations; Hermes Agent is a free, self-hosted personal agent that keeps data and model choice on your own server.
Vendor
Nous Research
Website →Tags
Details
- Maintained
- Yes
- Agent type
- Autonomous app
- Primary language
- Python
- Open source
- Yes
- Hosting
- Cloud & Self-hosted
- GitHub stars
- 248k
- Stars updated
- 2026-09-23