Harvey releases Tenet, its first post-trained open-weight legal model
Harvey Tenet is Harvey's first post-trained open-weight model, built on a Kimi K3 base and co-trained with Fireworks research for long-horizon legal work. It launches as a research preview on the Harvey platform, where it powers the legal reasoning layer of Harvey II.
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HARVEY.AIHarvey · Chronicle
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FAQWhat did Harvey announce on AUG 20, 2026?
Harvey Tenet is Harvey's first post-trained open-weight model, built on a Kimi K3 base and co-trained with Fireworks research for long-horizon legal work. It launches as a research preview on the Harvey platform, where it powers the legal reasoning layer of Harvey II.
What is Harvey?
Harvey builds domain-specific AI for legal work — research, drafting, diligence — deployed at major law firms and corporate legal departments.
Where is the official source for this announcement?
It was published by Harvey on AUG 20, 2026 via harvey.ai, the company's official channel. AgentMaps cites the primary source for every charted signal.