# LangSmith fine-tuning CLI smithtune trains on FireworksAI_HQ and baseten

Ankush Gola says smithtune pulls, selects, and processes trajectories from LangSmith, trains on FireworksAI_HQ and baseten, and evaluates the results with LangSmith. The code is in the langchain-ai GitHub repository.

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Source: Ankush Gola · Published 9/24/2026, 14:13:28

LangSmith fine-tuning has a dedicated CLI, smithtune, which Ankush Gola says is available to try. It pulls, selects, and processes trajectories from LangSmith, trains on FireworksAI_HQ and baseten, and then evaluates the results with LangSmith. The code is in the [smithtune repository](https://github.com/langchain-ai/smithtune).

Tags: LangSmith, smithtune, Fine-tuning, LangChain

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