{"schema_version":"onlylabs.public_signal.v1","title":"Baseten Writing: How To Build A Day Zero Api For Kimi K3","description":"Baseten writing signal with public source context, captured evidence pages, related signals, and category-scoped analysis context.","url":"https://onlylabs.fyi/signals/a3f0d254-cb58-4c4f-a9da-a5493000afd9","json_url":"https://onlylabs.fyi/signals/a3f0d254-cb58-4c4f-a9da-a5493000afd9/signal.json","generated_at":"2026-07-28T20:39:57.736Z","evidence_latest_fetched_at":"2026-07-27T16:02:10.762378+00:00","signal_first_seen_at":"2026-07-27T16:00:51.500481+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/a3f0d254-cb58-4c4f-a9da-a5493000afd9","signal_json":"https://onlylabs.fyi/signals/a3f0d254-cb58-4c4f-a9da-a5493000afd9/signal.json","source":"https://www.baseten.co/blog/how-to-build-a-day-zero-api-for-kimi-k3/","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 How To Build A Day Zero Api For Kimi K3. 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This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: How to build a day-0 API for Kimi K3 Kimi K3 is here. 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Try it now Model performance How to build a day-0 API for Kimi K3 Baseten has day-0 support for Kimi K3 on our Model APIs. Kimi K3 is a new 2.8T-parameter open frontier model. Authors Model Performance Team Last updated July 27, 2026 Share Baseten has day-0 support for Kimi K3 on our Model APIs. We want to thank Moonshot AI for sharing the Kimi K3 weights with us for early access, as well as the Inferact and RadixArk teams for their collaboration throughout the development process. ✕ Kimi K3 is available today on Baseten Model APIs with vision input and full 1M-token context window. Kimi K3 is a new open frontier model. At 2.8T parameters, it is much larger than any previous open model, introducing a number of challenges to building a performant inference API. New architectural techniques allow Kimi K3 to scale beyond the trillion-parameter threshold of prior frontier open models: Kimi Delta Attention (KDA) and Attention Residuals (AttnRes) as a scalable backbone for the Kimi Architecture. Extremely sparse experts, with just 16 of 896 experts active at a time, organized using Stable LatentMoE. 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