Model Releases · 20 Aug 2026
Harvey previews Tenet, its first post-trained legal model
Harvey has taken an existing open-weight base, Kimi K3, and post-trained it with Fireworks into a legal-specific model it calls Tenet. On its own Legal Agent Benchmark, Harvey reports the model finishes close to double the held-out tasks of the untuned base and 20 percent more on the contracts set, and it claims about a tenth of the previous cost per cell in table review. This is a research preview with no ship date, no pricing and no published weights, so nothing changes for buyers today, but it signals that the largest legal AI vendor is reducing its dependence on frontier labs, which bears on what firms eventually pay for high-volume document work.
Companies
- Harvey
- Fireworks AI
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