H Company Releases Holo4: Open-Weight Computer-Use Models That Click, Code and Call Tools Across Desktop, Web, Android and APIs
H Company has released Holo4, a family of generalist computer-use models for AI agents. One set of weights clicks and types on screens. It also writes code and calls MCP or API tools. Holo4 ships in 2 sizes: Holo4 27B (dense) and Holo4 35B-A3B (Mixture of Experts, 3B active). Both serve a 256K context on the H Models API. Is it deployable? Yes. Holo4 35B-A3B ships Apache 2.0 weights for commercial self-hosting. Holo4 27B weights are CC BY-NC 4.0, so commercial use of 27B runs through the H M
H Company released Holo4, a family of open-weight computer-use models designed to work as AI agents that can click on screens, write code, and call tools across different platforms including desktop, web, Android, and APIs. The models come in two sizes with different licensing options: a smaller version available under a non-commercial license and a larger version available under an Apache 2.0 license for commercial self-hosting. Holo4 addresses a gap where existing AI agents either fail without visual screens or get stuck when applications lack APIs, by using a single model that works consistently across all these different interfaces. On benchmark tests, Holo4 27B achieves 85.2% performance on OSWorld at a cost of $0.08 per task, significantly cheaper than competing models like Claude Opus 5.5, though those models still score higher on longer, more complex workflows.
Explainer: What Is a Mixture of Experts Model and Why Does It Use Fewer Resources?
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