Humansand launches Persimmon, a model built to simulate human conversation that fools AI detector Pangram
gharik · x · 2026-09-11
- Humansand introduced Persimmon, billed as the first large-scale model designed to realistically simulate how people talk and interact.
- The team confirmed it frequently fools the AI detection service Pangram — reportedly more than Astra and Fable 5.
- Training was done mid/post-training from NVIDIA's 550b Nemotron 3 Ultra on thousands of Blackwell GPUs.
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