Hcompany has released Holo4, a new series of agentic models designed to handle complex business workflows by interacting through various interfaces, including GUIs, code, MCP, and APIs. The series consists of two sizes: a 27B dense model and a 35B-A3B Mixture of Experts (MoE) model. Both models are available via the H Models API.
Hcompany Unveils Holo4: Agentic Models for Multi-Interface Computer Use
Unlike many agentic models that are specialized for a single interface, Holo4 is built to handle tasks that require combining different approaches, such as navigating a desktop GUI while simultaneously running code or calling APIs. The models are capable of performing actions such as clicking and typing on a screen, writing and executing their own code, and utilizing MCP or API tools.
Holo4 demonstrates significant improvements over its Qwen base model. On the OSWorld 2.0 benchmark for desktop control, the Holo4 27B model achieved a score of 61.7%, compared to 81.8% for Opus 5.5, while the Holo4 35B-A3B reached 30.9%. Hcompany notes that these models deliver competitive performance on academic benchmarks like OSWorld 2.0 and AutomationBench at a much lower cost and with fewer parameters than some frontier closed-source models.
In addition to the Holo4 series, Hcompany released an updated version of its smaller model, Holotron 3, now called Holotron4 Nano. Weights for the Holo4 models are available on Hugging Face in several formats, including BF16, FP8, NVFP4, and 4-bit GGUF.
Sources
- Holo4: powering generalist computer-use agents （Hugging Face Blog, 2026-09-28）