Updated April 29, 2026
AutoGPT is the pioneering autonomous AI agent platform — the project that introduced the world to recursive AI agents in early 2023. 183K+ GitHub stars. Now evolved into a visual workflow builder with composable 'block' agents, marketplace, and enterprise deployment. Backed by GitHub Ventures and Redpoint.
Hermes Agent is Nous Research's open-source autonomous AI agent with persistent memory across sessions. Released February 2026; hit 95.6K GitHub stars in seven weeks. Memory persists in ~/.hermes/memories/ plus 8 external provider plugins (Mem0, Honcho, OpenViking, etc.). Self-creates skills that compound over months of use.
Core capabilities each platform advertises.
What each tool does well, and the limitations to keep in mind.
Pros
Cons
Pros
Cons
AutoGPT was the fastest-growing open-source project in GitHub's history when it launched in spring 2023 — a watershed moment for autonomous AI agents.
Read full reviewReleased February 2026; seven weeks later it hit 95,600 GitHub stars — the fastest-growing agent framework of 2026.
Read full reviewChoose AutoGPT if you wantChoose if you want
Choose Hermes Agent if you wantChoose if you want
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.