Hcompany/Holo2-235B-A22B

Holo2: Foundational Models for Navigation and Computer Use Agents

Model Description

Holo2 represents the next major step in developing large-scale Vision-Language Models (VLMs) for multi-domain GUI Agents. These agents can operate real digital environments specifically web, desktop, and mobile by interpreting interfaces, reasoning over content, and executing actions.

Our Holo2 family emphasizes navigation and task execution across diverse real and simulated environments, extending beyond static perception to multi-step, goal-directed behavior.

It builds upon the strengths of Holo1.5 in UI localization and screen content understanding, with major improvements in policy learning, action grounding, and cross-environment generalization.

The Holo2 series comes in three model sizes:

• Holo2-4B: fully open under Apache 2.0
• Holo2-8B: fully open under Apache 2.0
• Holo2-30B-A3B: research-only license (non-commercial). For commercial use, please contact us.
• Holo2-235B-A22B: research-only license (non-commercial). For commercial use, please contact us.

These models are designed to provide reliable, accurate, and efficient foundations for next-generation CU agents, like Surfer-H.

• Developed by: H Company
• Model type: Vision-Language Model for Navigation and Computer Use Agents
• Fine-tuned from model: Qwen/Qwen3-VL-235B-A22B-Thinking
• Blog Post: https://hcompany.ai/holo2-235b-a22b-preview
• License: Apache 2.0 License

Get Started with the Model

Please have a look at the cookbook in our repo where we provide examples for both self-hosting and API use!

Training Strategy

Our models are trained using high-quality proprietary data for UI understanding and action prediction, following a multi-stage training pipeline. The training dataset is a carefully curated mix of open-source datasets, large-scale synthetic data, and human-annotated samples. Training proceeds in two stages: large-scale supervised fine-tuning, followed by online reinforcement learning (GRPO) yielding SOTA performance in interpreting UIs and performing actions on large, complex screens.

Agentic Localization

High-resolution 4K interfaces are challenging for localization models. Small UI elements can be difficult to pinpoint on a large display. With agentic localization, Holo2 can iteratively refine its predictions, improving accuracy with each step and unlocking 10-20% relative gains across all Holo2 model sizes.

Holo2-235B-A22B reaches 70.6% accuracy on ScreenSpot-Pro in a single step. Within 3 steps, it achieves 78.5%, setting a new state-of-the-art on the most challenging GUI grounding benchmark.

Results

Holo2: SOTA UI Localization

UI Localization measures how precisely an agent can locate on-screen elements—buttons, inputs, links—necessary for accurate interaction.
Holo2 continues to set new standards for localization accuracy across web, OS, and mobile benchmarks.

	ScreenSpot-Pro	OSWorld-G	Showdown	Ground-UI-1K	WebClick-v1	ScreenSpot-v2	Average
Holo2-235B-A22B (Agentic)	78.5%	-	-	-	-	-	-
Holo2-235B-A22B	70.6%	79.0%	80.4%	85.5%	94.3%	95.9%	84.28
Holo2-30B-A3B (Agentic)	75.2%	-	-	-	-	-	-
Holo2-30B-A3B	66.1%	76.1%	77.6%	85.5%	91.3%	94.9%	81.90
Holo2-8B (Agentic)	71.4%	-	-	-	-	-	-
Holo2-8B	58.9%	70.1%	72.5%	83.8%	89.5%	93.2%	78.00
Holo2-4B (Agentic)	68.6%	-	-	-	-	-	-
Holo2-4B	57.2%	69.4%	74.7%	83.3%	88.8%	93.2%	77.77
Qwen3-VL-235B-A22B-Thinking	61.8%	68.3%	78.4%	85.2%	92.1%	95.4%	80.20
Qwen3-VL-30B-A3B-Thinking	49.9%	65.8%	71.2%	84.2%	89.5%	91.8%	75.40
Qwen3-VL-8B-Thinking	38.5%	56.0%	64.2%	83.6%	85.9%	91.5%	69.95
Qwen3-VL-4B-Thinking	41.4%	56.4%	66.6%	84.1%	85.8%	90.0%	70.72
MAI-UI-32B (+Zoom-In)	73.5%	70.9%	-	-	-	-	-
MAI-UI-32B	67.9%	67.6%	-	-	-	-	-
MAI-UI-8B (+Zoom-In)	70.9%	64.2%	-	-	-	-	-
MAI-UI-8B	65.8%	60.1%	-	-	-	-	-
MAI-UI-2B (+Zoom-In)	62.8%	55.9%	-	-	-	-	-
MAI-UI-2B	57.4%	52.0%	-	-	-	-	-

Table 1: Localization benchmark scores for leading models.

Holo2 models performance on the ScreenSpot-Pro benchmark.

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Citation

@misc{hai2025holo2modelfamily,
      title={Holo2 - Open Foundation Models for Navigation and Computer Use Agents}, 
      author={H Company},
      year={2025},
      url=https://huggingface.co/collections/Hcompany/holo2, 
}