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Published by LangChain Blog (T1.5 source). The original is at https://www.langchain.com/blog/langsmith-fine-tuning.

Pipeline notes

The summary and note below are generated by the signal pipeline — they are Beyond Desk’s reading, not quotations from the source.

LangChain launches LangSmith Fine-Tuning and SmithTune, a CLI that converts LangSmith agent trajectories into training data and runs supervised fine-tuning through Fireworks or Baseten, with evaluation via LangSmith.

One CLI that closes the loop from agent trajectory data to a fine-tuned model, removing the need to build a data pipeline by hand.

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