H Company releases Holo4 models for computer‑use agents

AI startup H Company on Monday released Holo4, a family of open models built to operate computer interfaces the way a person would. It calls on GUIs, code execution, the Model Context Protocol and APIs from what the company says is a single unified system, rather than separate tools for each surface.

https://x.com/hcompany_ai/status/2104508207582367807

The release is the maker's own account, published on Hugging Face alongside the model weights. No independent lab has tested Holo4's claims yet. On the OSWorld 2.0 benchmark, H Company said its 27-billion-parameter dense model scored 61.7%, against 81.8% for Anthropic's Claude Opus 5.5, while using what it called "orders of magnitude fewer parameters" at a far lower cost per task.

The family spans three sizes. Holo4-27B is a dense model, Holo4-35B-A3B is a mixture-of-experts model that the company said scored 30.9% on the same benchmark, and Holotron4 Nano is a smaller model built on Nvidia's Nemotron 3 architecture. H Company said the models can click, type, write code and call API tools depending on the task, pointing to use in software such as the FreeCAD modeler and the Godot game engine.

The weights are posted on Hugging Face in several formats, including BF16, FP8, NVFP4 and 4-bit GGUF. H Company also offers the models through its own API. The company published full task trajectories from its benchmark runs at trajectories.hcompany.ai, letting outside developers inspect how the models performed rather than take the scores alone.