Chaoyun Zhang (@vyokky) profile picture

Principal Researcher at Microsoft

Joined August 2016
Photo by Chaoyun Zhang (@vyokky)Photo by Chaoyun Zhang (@vyokky)Photo by Chaoyun Zhang (@vyokky)Photo by Chaoyun Zhang (@vyokky)
NorthCUA is now open source 🚀 We’re releasing Nano 9B, Mini 35B and Pro 397B, alongside our Harness framework and a 123-page technical report. Our goal: agents that can take a task from user intent to completed work across real desktop and web applications.
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Huge thanks to everyone who helped bring this project to life. Try it on your own tasks, share what works, and help us push CUAs further. 🌐 Project: beipo.top/blog/northcua/en/ 🤗 Models: huggingface.co/beipo-ai/Nort… 💻 Code: github.com/beipo-ai/NorthCUA 📄 Report: arxiv.org/pdf/2611.02102v1
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Getting there takes more than where to click. NorthCUA connects scalable task environments, verified interaction experience and staged training into a complete learning loop. RSI reusable skills and preserves successful milestones, helping agents build on earlier progress.
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Try the N2.5 CUA capabilities and see how far they can go! 🚀 And we’re just getting started: 🧩 NexCUA, our dedicated CUA harness 🤖 NexCUA-specialized models are coming soon. Stay tuned. More action ahead. 👀
Meet Nex-N2.5 family, our latest open source agentic models. Mini (35B) and Pro (397B) bring multimodal understanding and computer use. Max (1.6T) is a text-only MoE model built for complex reasoning, coding, and agent workflows. Strong benchmark results in workflow automation and computer use: ⚡ Max scores 50.2 on AutomationBench v1.0.6—just 0.1 points behind Claude Opus 5 ⚡ Pro scores 56.4 on OSWorld-2, ahead of Qwen3.8-Max at 46.7 With continuous action, visual feedback, and self-correction, NEX-N2.5 can work across Blender and CAD tools, handle expense reimbursements, and even play PC games—turning visual understanding into sustained, real-world execution. 🔗@huggingface huggingface.co/nex-agi/Nex-N… huggingface.co/nex-agi/Nex-N… huggingface.co/nex-agi/Nex-N… 🔗@modelscope modelscope.cn/models/nex-agi… modelscope.cn/models/nex-agi… modelscope.cn/models/nex-agi… 🔗 Github github.com/nex-agi/Nex-N2.5 🔗Website nex-agi.com/
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We built a Guangzhou 3D map simulator with Nex N2. From OpenStreetMap data to an interactive 3D geospatial environment: - tilted 3D map view - simulated sun, weather, traffic, and camera controls - landmark annotations - agent-ready urban navigation / spatial reasoning scenarios
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This is the kind of lightweight “world simulator” we want Nex N2 to help build: not just answering questions, but turning real-world data into interactive environments for agents. Try Nex N2 Pro: OR: openrouter.ai/nex-agi/nex-n2… HF: huggingface.co/nex-agi/Nex-N… #NexN2 #NexAGI #LLMAgent
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This is the kind of lightweight “world simulator” we want Nex N2 to help build: not just answering questions, but turning real-world data into interactive environments for agents. Try Nex N2 Pro: OR: openrouter.ai/nex-agi/nex-n2… HF: huggingface.co/nex-agi/Nex-N… #NexN2 #NexAGI #LLMAgents
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Please do apply if you are interested!
🔊2026 Summer Internship @MSFTResearch Deep Learning Group🔊 We’re looking for a self-motivated intern with strong background on ⛑️building GUI agent environments and/or 🏗️reinforcement learning. 📩Interested? Send your CV + a short intro to [email protected]!
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Grateful to AK for highlighting UFO³! 🛸 Proud of this collaboration — building an agent framework that scales across devices and unlocks next-gen automation. 📄 Paper: arxiv.org/abs/2511.11332 ▶️ Demo: youtube.com/watch?v=NGrVWGcJ… 💻 Code: github.com/microsoft/UFO
UFO^3 Weaving the Digital Agent Galaxy
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🚀 UFO³ — Weaving the Digital Agent Galaxy 🛸 Every device you own, servers, laptops, mobiles, working together as a single AI workforce 💻📱. The era of multi-device agents begins 🌌. Paper: arxiv.org/abs/2511.11332 Code: github.com/microsoft/UFO Demo: youtube.com/watch?v=NGrVWGcJ…
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Proud to share our new work: GUI-Actor! 🎯 A coordinate-free GUI grounding approach inspired by how humans perceive & act. Outperforms models 10x its size — and the verifier helps others too! 📄 arXiv: 2506.03143 🌐 microsoft.github.io/GUI-Acto…
🚀 Excited to share GUI-Actor—a new approach for GUI grounding! Big thanks to @_akhaliq for featuring our work! 🌐 Project page: microsoft.github.io/GUI-Acto… 📜 Paper: arxiv.org/pdf/2506.03143 🤔 What's limiting coordinate generation-based GUI grounding? 1️⃣ Weak spatial-semantic alignment 2️⃣ Ambiguous supervision signals 3️⃣ Vision–action granularity mismatch 👀 But think about it: humans don’t calculate precise screen coordinates—we perceive elements and then act directly. 💡 Meet GUI-Actor: a VLM with an attention-based action head that: ✅ Addresses above limitations ✅ Proposes multiple candidate regions in one pass, enabling flexible downstream strategies. ✅ Performs coordinate-free grounding that better mirrors human behavior ➕ We also introduce a grounding verifier to select the most plausible action region — and it can boost other grounding methods too. 🎯 Results? GUI-Actor achieves SOTA on several benchmarks, even GUI-Actor-7B outperforms UI-TARS-72B on ScreenSpot-Pro, all using the same Qwen2-VL backbone.
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Proud to share our new work — SWE-bench-Live is now live! A live-updating benchmark for real-world bug fixing, where even top agents like Claude 3.7 Sonnet + OpenHands stumble. Try it out & follow us 👉 swe-bench-live.github.io #LLM #SWEbenchLive #AIforCode
🤔 Have we really made great progress on software engineering tasks? 🚀 Introducing SWE-bench-Live, a live-updatable benchmark for real-world bug fixing. 😺 Even the best combo, OpenHands + Claude 3.7 Sonnet, sees a major performance drop! 👉 swe-bench-live.github.io/ 🧵 1/4
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😃Welcome to discuss.
UFO2 The Desktop AgentOS
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🚀 UFO2 – The Desktop AgentOS is here! Multi‑agent automation inside Windows, featuring: • Hybrid GUI + native API actions • Picture‑in‑Picture virtual desktop • +SOTA task‑success & ‑51 % LLM calls Paper, Code & docs ➜ github.com/microsoft/UFO #LLMAgents #DesktopAutomation
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Chaoyun Zhang retweeted
1/ VEM: Environment-Free Exploration for Training GUI Agent with Value Environment Model The paper introduces VEM, an innovative environment-free reinforcement learning framework that trains GUI agents using a pretrained Value Environment Model to estimate state-action values from offline data, significantly improving task success rates and efficiency without requiring direct environmental interactions. Jiani Zheng, Lu Wang, Fangkai Yang, Chaoyun Zhang(@vyokky ), Lingrui Mei, Wenjie Yin, Qingwei Lin, Dongmei Zhang, Saravan Rajmohan, Qi Zhang arxiv.org/pdf/2502.18906
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