NEWS AI Models
H Company's Holo4 puts an open-weights computer operator on Hugging Face: one model that clicks, codes, and calls APIs, with every step it took published
H Company released Holo4 as open weights in 27B dense and 35B-A3B Mixture of Experts sizes on September 28, 2026, scoring 61.7 percent on OSWorld 2.0 for the 27B model against 81.8 percent for Opus 5.5, publishing 7,366 agent trajectories for public inspection, and shipping a smaller Holotron4 Nano. Cost comparisons are self-reported, and the weights carry a non-commercial license.