Updated April 29, 2026
Modular Python framework for AI agents with chain-of-thought reasoning
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.
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Released February 2026; seven weeks later it hit 95,600 GitHub stars — the fastest-growing agent framework of 2026.
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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.