what's the differece between thread in langgraph and langsmith

[baixianger]

I am learning langgraph and langsmith both. Bui i found they all have the same concepts about threads.

One comes from langraph's checkpoint to memory the states of the agent graph. The other is the trace concept from langsmith to group the same series of testing together.

That's very confusing, because both could be seen from langgraph studio webpage.

Are they the same stuff? Anyone could explain this for me.

Thanks in advance.

[Tik1993]

Based on my understanding, LangGraph is a framework used to build LLM agents. LangSmith is a platform used to trace any LangGraph application deployment.

[baixianger]

Thank you. But the point is the threads in both frameworks. When i use langgraph to run my agent, there is a checkpointer to keep track of the individual run called thread. And in the meantime, langsmith will also keep track of this run, named thread as well. What's more is that they look like sharing the same information of the run.

Quite confusing about the two threads?