Hermes Agent (Nous Research) alternatives (2026)
Hermes Agent (Nous Research) is a frameworks tool: Open-source agent harness; v0.21.7 stable shipped Oct 12, v0.22.0 RCs Oct 13-14. Pricing, as the maker states it: Open source. Its GitHub repo has 253,590 stars. We found 127 tools in the directory that do overlapping work (building AI agents, research, open-source agents); 122 of them are open source and 1 list a free or freemium plan. Below are the 10 closest, ranked by how many tasks and sub-tasks they share with Hermes Agent (Nous Research), then by GitHub stars.
- FrontierAgent (Open source): Open-source agent runtime and terminal app for long-horizon research and file work, with single-agent ReAct and parallel agent-team modes. Consider it because it also covers running many agents in parallel and terminal and CLI agents.
- DeepSeek Harness (Open source): DeepSeek's open-source agent harness with a local web UI, built so that every tool, model and scheduled task is a swappable plugin; still a developer preview. Consider it because it also covers local and self-hosted.
- Ruflo (Open source): Open-source multi-agent meta-harness for Claude Code, Codex, and MCP clients; Oct 13 release adds Mods (mission workflows) and a single control plane with human approval. Consider it because it also covers running many agents in parallel and workflow automation.
- OpenHuman (Open source): Lightweight open-source agent harness designed to run many agents cheaply on small servers. Consider it because it also covers running many agents in parallel and images and design.
- AstrBot (Open source): Open-source agent chatbot platform and framework that connects LLMs, plugins and tools to mainstream messaging apps for assistants, support bots and knowledge bases. Consider it because it also covers RAG and documents.
- txtai (Open source): All-in-one Python framework for semantic search, LLM orchestration and agents built on an embeddings database of vector, graph and relational indexes. Consider it because it also covers SQL and databases and RAG and documents.
- AIOS (See site): Research AI agent operating system that handles scheduling, context switching, memory, storage and tool management for LLM-based agents. Consider it because it also covers memory and mobile and remote control.
- TrueForge (Open source): Open-source agent harness runtime that turns an LLM into a working agent. Consider it because it does the same job with a different approach (open source).
- IBM CUGA (Open source): IBM Research's configurable generalist agent (CUGA) for enterprise web and API tasks, with a live demo on Hugging Face Spaces. Consider it because it also covers rules, skills and config.
- MetaGPT (Open source): Multi-agent framework that assigns roles like product manager and engineer to LLM agents to build software. Consider it because it also covers multi-agent orchestration.
Hermes Agent (Nous Research) vs alternatives at a glance
| Tool | Pricing | Open source / licence | GitHub stars | Good for |
|---|---|---|---|---|
| Hermes Agent (Nous Research) | Open source | MIT | 253,590 | building AI agents, research |
| FrontierAgent | Open source | Yes | 5,312 | coding in the terminal, building AI agents |
| DeepSeek Harness | Open source | MIT | 251,853 | building AI agents, open-source agents |
| Ruflo | Open source | MIT | 74,609 | automating workflows, building AI agents |
| OpenHuman | Open source | GNU GPL v3.0 | 42,113 | building AI agents, images and design |
| AstrBot | Open source | Yes | 42,095 | automating workflows, building AI agents |
| txtai | Open source | Yes | 13,024 | building AI agents, building multi-agent systems |
| AIOS | See site | No | 6,480 | controlling a computer, building AI agents |
| TrueForge | Open source | MIT | 6,247 | building AI agents, open-source agents |
| IBM CUGA | Open source | Apache License 2.0 | 1,012 | building AI agents, running business operations |
| MetaGPT | Open source | MIT | 70,885 | building AI agents, building multi-agent systems |
More: Hermes Agent (Nous Research) listing · All frameworks tools · All alternatives pages
Related searches: Open-source AI agent frameworks
Alternatives are picked from directory data only: same category plus shared tasks and sub-tasks. Pricing is as each maker states it; GitHub stars as recorded on each listing.