# Fireworks says it is a launch training partner for LangSmith Fine-Tuning and smithtune

Fireworks says it is a launch training partner for LangChain’s LangSmith Fine-Tuning and smithtune, describing a one-CLI path from LangSmith traces to managed SFT on Fireworks, then evaluation and deployment, without separate training infrastructure.

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Source: Fireworks · Published 9/24/2026, 12:45:00

Fireworks says it is a launch training partner for LangChain’s LangSmith Fine-Tuning and smithtune. It describes a workflow that takes LangSmith traces into managed SFT on Fireworks, followed by evaluation and deployment, using one CLI and no separate training infrastructure.

The steps use a Fireworks API key from [Fireworks API keys](https://fireworks.ai/api-keys) and the smithtune CLI in the [smithtune repository](https://github.com/langchain-ai/smithtune).

Tags: Fireworks, LangChain, LangSmith, Fine-tuning, smithtune

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