Holo4-27B
[!IMPORTANT] Holo4 family:
Model summary
Holo4-27B is a vision-language model (VLM) for Computer Use, built on Qwen3.8-27B and developed by H Company. Used with the hai-agents harness, it can send screenshots and tool results to the model, then execute its requested clicks, typing, code, and tool calls.
Holo4 uses FreeCAD to build a replica of the Eiffel Tower. More examples in the blog post.
Performance
Holo4 models improve significantly over their Qwen base models. On OSWorld, Holo4-27B scores 85.2% at $0.08 per task. We also evaluate them on Agentic Task Factory, a set of held-out business workflows across web, desktop, and MCP tools.
Benchmark results
Read the blog post for more tables about the benchmark results.
Pareto plots
These plots compare benchmark scores with cost per task. On OSWorld 2.0, Holo4-27B scores 61.7% at $1.22 per task, and Holo4-35B-A3B scores 30.9% at $0.61 per task.
On AutomationBench, Holo4-27B scores 45.4% at $0.05 per task, and Holo4-35B-A3B scores 34.5% at $0.02 per task.
Open-source evaluation traces
For transparency, we share all agent trajectories in the open-source dataset at Hcompany/trajectories.
Usage
The harness sends screenshots and tool results to Holo4, executes the model's requested actions, and sends the results back. It can give the model access to application tools and code execution.
Refer to the documentation for more details about:
Training
License
The model weights are available under the Non-commercial (CC BY-NC 4.0) license. This model is built on Qwen3.8-27B, which Alibaba Cloud releases under the Apache License 2.0. The repository includes both licenses.