DeepSeek Harness vs LangGraph

Side-by-side comparison of two AI agent tools

Short answer

  • DeepSeek Harness is growing faster: +16,130 GitHub stars in the last 30 days vs +2,365 for LangGraph.
  • Pick DeepSeek Harness for: deepSeek Harness: Everything is a Plugin. Pick LangGraph for: build resilient language agents as graphs.

From GitHub data refreshed daily.

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DeepSeek Harnessopen-source

DeepSeek Harness: Everything is a Plugin.

LangGraphopen-source

Build resilient language agents as graphs.

Metrics

DeepSeek HarnessLangGraph
Stars242.6k42.7k
Star velocity /mo16.1k2.4k
Commits (90d)19.8k132
Releases (6m)1010
Downloads (30d, npm + PyPI)—43.7M
Overall score0.95629732268553560.8091319530692536

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 DeepSeek Harness DetailsView LangGraph Details

        FAQ

        Which is more popular, DeepSeek Harness or LangGraph?
        DeepSeek Harness has more GitHub stars (242,644 vs 42,656).
        Which is more actively developed, DeepSeek Harness or LangGraph?
        DeepSeek Harness had more commits in the last 90 days (19,802 vs 132).
        Should I use DeepSeek Harness 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.