24 August 2026
Legal AI startup Harvey releases Tenet model for long-document work
First reported
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- Harvey, a legal AI startup, released Tenet, a model designed to handle lengthy legal documents efficiently.
- Tenet was built by post-training Moonshot AI's Kimi K3, an openly available model that anyone can download and modify.
- Harvey chose an open model despite OpenAI, which backs the company, offering proprietary alternatives.
How it was covered
SuperhumanZain Kahn
Legal AI startup Harvey released Tenet, a model built for long-horizon legal work and optimized for token efficiency, post-trained on Moonshot AI's Kimi K3. The choice of an open weight model signals preference for such models despite OpenAI being an investor in Harvey since 2022.