{"schema_version":"onlylabs.public_signal.v1","title":"StepFun Model: stepfun-ai/GELab-Zero-4B-preview","description":"StepFun model signal with public source context, captured evidence pages, related signals, and category-scoped analysis context.","url":"https://onlylabs.fyi/signals/50020ff7-8686-4212-b088-7e1f0bc425bc","json_url":"https://onlylabs.fyi/signals/50020ff7-8686-4212-b088-7e1f0bc425bc/signal.json","generated_at":"2026-06-11T02:49:50.500952+00:00","org":{"slug":"stepfun","name":"StepFun","category":"neolab","category_label":"Neolab","dossier_url":"https://onlylabs.fyi/labs/stepfun","dossier_json_url":"https://onlylabs.fyi/labs/stepfun/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/50020ff7-8686-4212-b088-7e1f0bc425bc","signal_json":"https://onlylabs.fyi/signals/50020ff7-8686-4212-b088-7e1f0bc425bc/signal.json","source":"https://huggingface.co/stepfun-ai/GELab-Zero-4B-preview","lab_dossier":"https://onlylabs.fyi/labs/stepfun","lab_dossier_json":"https://onlylabs.fyi/labs/stepfun/dossier.json","analysis":"https://onlylabs.fyi/analysis/stepfun","analysis_json":"https://onlylabs.fyi/analysis/stepfun/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/stepfun/evidence.json","category":"https://onlylabs.fyi/neolabs","category_json":"https://onlylabs.fyi/neolabs.json","category_feed":"https://onlylabs.fyi/neolabs/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json?category=neolab","topic":"https://onlylabs.fyi/topics/releases","topic_signals_json":"https://onlylabs.fyi/topics/releases/signals.json?category=neolab","topic_feed":"https://onlylabs.fyi/topics/releases/feed.xml?category=neolab","data_business":null},"answer_pack":{"answer":"StepFun published stepfun-ai/GELab-Zero-4B-preview. This model signal is evidence of what shipped on model infrastructure and how the release is positioned. 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Model Details This model is part of the [**GELab-Zero**](https://github.com/stepfun-ai/gelab-zero) project, which aims to accelerate the innovation and application deployment of GUI Agents by providing: 1. **A 4B GUI Agent model** capable of running on local computers. 2. **Plug-and-play inference infrastructure** that handles ADB connections, dependency installation, and task recording/replay (**available in the** [**GELab-Zero**](https://github.com/stepfun-ai/gelab-zero)). Key Capabilities * **Local Deployment**: Optimized for consumer-grade hardware, balancing low latency with privacy. * **GUI Navigation**: Proficient in detecting and interacting with UI elements (click,..."},"evidence_pages":[{"url":"https://huggingface.co/stepfun-ai/GELab-Zero-4B-preview/raw/main/README.md","final_url":"https://huggingface.co/stepfun-ai/GELab-Zero-4B-preview/raw/main/README.md","title":"stepfun-ai/GELab-Zero-4B-preview model card","http_status":200,"content_type":"text/plain; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T02:49:50.500952+00:00","bytes":4971,"raw_path":"16e5d070eba530149154f8ec02e8d2a67f70bec915158ab3bb242cc5e8b267b9.md","content_hash":"9c9ba531514a471b1bce4e3ba70b4a056594f108de0b82de2bfa5c9e55b230d5","excerpt_chars":1200,"truncated":true,"excerpt":"--- base_model: Qwen/Qwen3-VL-4B-Instruct language: - en - zh license: apache-2.0 tags: - gui-agent - phone-use agent - computer-use agent - pua - android - multimodal - gelab-zero pipeline_tag: image-text-to-text library_name: transformers --- GELab-Zero-4B-preview This model is part of the **GELab-Zero** project, which presents the **Step-GUI Technical Report** [[Paper](https://huggingface.co/papers/2512.15431)] [[Project Page](https://opengelab.github.io/)] [[Code](https://github.com/stepfun-ai/gelab-zero)]. Model Details This model is part of the [**GELab-Zero**](https://github.com/stepfun-ai/gelab-zero) project, which aims to accelerate the innovation and application deployment of GUI Agents by providing: 1. **A 4B GUI Agent model** capable of running on local computers. 2. **Plug-and-play inference infrastructure** that handles ADB connections, dependency installation, and task recording/replay (**available in the** [**GELab-Zero**](https://github.com/stepfun-ai/gelab-zero)). 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