How to go from your agent's traces to a fine-tuned model in one workflow

This post introduces LangSmith Fine-Tuning and the `smithtune` CLI, a tool that enables a direct workflow from LangSmith agent traces to custom fine-tuned models. It automates dataset creation from trajectories, integrates with training platforms like Fireworks and Baseten, and leverages LangSmith for evaluation. The workflow allows for iterative improvement by comparing base models against fine-tuned versions within LangSmith experiments.