{"schema_version":"onlylabs.public_signal.v1","title":"Baseten Writing: Fine Tune On Your Langsmith Traces With Baseten Loops","description":"Baseten writing signal with public source context, captured evidence pages, related signals, and category-scoped analysis context.","url":"https://onlylabs.fyi/signals/5e528acd-3bcd-46bd-8988-f6c8d70344bb","json_url":"https://onlylabs.fyi/signals/5e528acd-3bcd-46bd-8988-f6c8d70344bb/signal.json","generated_at":"2026-10-25T04:29:29.649Z","evidence_latest_fetched_at":"2026-09-25T00:02:27.226582+00:00","signal_first_seen_at":"2026-09-24T20:00:52.099561+00:00","org":{"slug":"baseten","name":"Baseten","category":"neocloud","category_label":"Neocloud","dossier_url":"https://onlylabs.fyi/labs/baseten","dossier_json_url":"https://onlylabs.fyi/labs/baseten/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/5e528acd-3bcd-46bd-8988-f6c8d70344bb","signal_json":"https://onlylabs.fyi/signals/5e528acd-3bcd-46bd-8988-f6c8d70344bb/signal.json","source":"https://www.baseten.co/blog/fine-tune-on-your-langsmith-traces-with-baseten-loops/","lab_dossier":"https://onlylabs.fyi/labs/baseten","lab_dossier_json":"https://onlylabs.fyi/labs/baseten/dossier.json","analysis":"https://onlylabs.fyi/analysis/baseten","analysis_json":"https://onlylabs.fyi/analysis/baseten/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/baseten/evidence.json","category":"https://onlylabs.fyi/neoclouds","category_json":"https://onlylabs.fyi/neoclouds.json","category_feed":"https://onlylabs.fyi/neoclouds/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json?category=neocloud","topic":"https://onlylabs.fyi/topics/talking","topic_signals_json":"https://onlylabs.fyi/topics/talking/signals.json?category=neocloud","topic_feed":"https://onlylabs.fyi/topics/talking/feed.xml?category=neocloud","data_business":null},"answer_pack":{"answer":"Baseten published Fine Tune On Your Langsmith Traces With Baseten Loops. 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This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Product feature integration for fine-tuning with LangSmith traces. · Fine-tune on your LangSmith traces with Baseten Loops Blaxel is joining Baseten . 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Read more News Fine-tune on your LangSmith traces with Baseten Loops LangSmith Fine-Tuning is in public beta today, and its open-source CLI, smithtune, trains on Baseten Loops. Authors Mudith Jayasekara Aaron Ellis-Bloor Vivek Trivedy Jake Broekhuizen Last updated September 24, 2026 Share TL;DR LangChain's applied research team trains the models behind LangSmith Engine on Baseten Loops . They fine-tune an open model on agent traces from LangSmith, and we wrote about that work earlier this month. That workflow is now open to anyone building on LangSmith. LangChain announced LangSmith Fine-Tuning today at their Interrupt 26 Conference in New York. It runs on smithtune, an open-source CLI you can use yourself or hand to a coding agent. The CLI reads your LangSmith traces and turns the successful runs into a supervised fine-tuning dataset. Training then runs on Baseten Loops. Once LangSmith has evaluated the new checkpoint, smithtune deploy puts it on a Baseten Dedicated Inference deployment. 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