Humansand mid/post-trained Persimmon on thousands of Blackwell GPUs from NVIDIA's 550b Nemotron 3 Ultra
gharik · x · 2026-09-11
- Humansand revealed that its new Persimmon model was mid- and post-trained starting from NVIDIA's 550b Nemotron 3 Ultra, using thousands of Blackwell-generation GPUs on a recently built cluster with partners including NVIDIA and DeepInfra.
- Persimmon is an early release; tool use, longer horizons, and more capabilities are still on the roadmap.
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