hermes-agent vs LangGraph

Side-by-side comparison of two AI agent tools

Short answer

  • hermes-agent is growing faster: +5,710 GitHub stars in the last 30 days vs +2,365 for LangGraph.
  • Pick hermes-agent for: the agent that grows with you. Pick LangGraph for: build resilient language agents as graphs.

From GitHub data refreshed daily.

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hermes-agentopen-source

The agent that grows with you

LangGraphopen-source

Build resilient language agents as graphs.

Metrics

hermes-agentLangGraph
Stars250.9k42.7k
Star velocity /mo5.7k2.4k
Commits (90d)33.4k132
Releases (6m)1010
Downloads (30d, npm + PyPI)—43.7M
Overall score0.9465511756357280.8091319530692536

Pros

    • +Durable execution ensures agents automatically resume from exactly where they left off after failures or interruptions
    • +Comprehensive memory system with both short-term working memory for ongoing reasoning and long-term persistent memory across sessions
    • +Seamless human-in-the-loop capabilities allow for inspection and modification of agent state at any point during execution

    Cons

      • -Low-level framework requires more technical expertise and setup compared to high-level agent builders
      • -Graph-based agent design paradigm may have a steeper learning curve for developers new to agent orchestration
      • -Production deployment complexity may be overkill for simple chatbot or single-turn use cases

      Use Cases

        • •Long-running autonomous agents that need to persist through system failures and operate over days or weeks
        • •Complex multi-step workflows requiring human oversight, approval, or intervention at specific decision points
        • •Stateful agents that must maintain context and memory across multiple sessions and interactions
        View hermes-agent DetailsView LangGraph Details

        FAQ

        Which is more popular, hermes-agent or LangGraph?
        hermes-agent has more GitHub stars (250,877 vs 42,656).
        Which is more actively developed, hermes-agent or LangGraph?
        hermes-agent had more commits in the last 90 days (33,428 vs 132).
        Should I use hermes-agent or LangGraph?
        Compare their capabilities, limitations and "best for" notes above. Both are open source, so trying each on a small task is the fastest way to decide.