Let’s look at this from a different angle. Many American tech creators and overseas users have recently gotten early access to Tencent’s brand-new system-level AI assistant, Marvis. Users overseas are used to tools like ChatGPT and various desktop AI apps, so they hold fairly high standards. Most Western AI tools are limited to text chats or superficial desktop controls and cannot handle real, end-to-end tasks. However, overseas testers share one consistent opinion: Marvis works completely differently from mainstream Western AI products. It moves beyond basic Q&A and focuses on full system control, local PC operation, and cross-device execution — the ability to autonomously complete entire workflows is extremely rare in the current overseas AI market. After testing countless Western AI tools and finally getting my hands on the Marvis beta, I was honestly skeptical at first. The market is flooded with AI assistants that claim to control your computer. But after a full week of in-depth testing, this so-called “little horse worker” is genuinely different from ordinary chatbots. Below is my unbiased, real-world experience to help you understand what it can actually do.
First Impression: Not Just an AI — A Virtual Office Simulation
Marvis abandons the boring traditional chatbox interface the moment you open it. It features a unique virtual office scene with several cute black pony characters with horns and penguin-themed scarves — officially named “Little Horse Workers”.
The most charming part is its vivid idle animations. When you assign no tasks, these little ponies wander around, nap, work out, and even do random idle actions, bringing the cold AI interface to life. Once you send a command, a lead agent steps in to take charge, splits the task into multiple steps, and distributes the work to dedicated subordinate agents. This anthropomorphic design adds a warm, human touch to automated AI operations and makes the entire experience far less mechanical.
Test 1: Seamless Cross-Device Control — Operate Mobile Apps Directly on PC
My top priority was testing its cross-device capabilities, a feature I badly need for daily work. Previously, I constantly had to pick up my phone to check app data while working on PC, which was extremely disruptive and inefficient.
I gave it a simple instruction: “Check the real-time stock price of Tesla on Tongshun Stock.”
I expected nothing more than a list of search links like regular AI results. Instead, Marvis delivered an impressive performance. It launched the Tongshun Android app directly via a built-in PC emulator. I watched the cursor automatically move, click the search bar, type “Tesla”, select the correct entry, and finally capture and send a full screenshot of real-time stock data. The whole process was smooth and fully automated. It truly breaks the barrier between PC and mobile devices, letting you control phone apps effortlessly on your computer.
Test 2: In-Depth System-Level Control — A Lifesaver for PC Beginners
Most AI tools can only handle conversations and text generation without touching core system functions. Marvis is fundamentally different — it can truly operate and modify your computer system.
I ran a practical hardware compatibility test: “Can my current PC run Black Myth: Wukong smoothly?”
Instead of giving vague answers, it activated the system agent to fully scan my PC hardware, including my M1 integrated GPU, RAM, and storage space. It automatically compared my specs with the official minimum and recommended requirements of the game. It clearly explained that the performance of the M1 integrated GPU is only 50%–60% of a GTX 1060, which is insufficient to run the game. It also offered practical solutions, such as playing on PS5 or using cloud gaming services.
This feature is incredibly helpful for users who do not understand hardware parameters or game compatibility. Beyond gaming checks, it can optimize startup items, monitor CPU status, and organize system files, covering almost all daily PC maintenance needs for ordinary users.
Test 3: Complex Document Processing & Reliable Privacy Protection
I tested its advanced office capabilities with a multi-step complex task: “Merge all documents labeled 0518 on my desktop into one PDF, rename it ‘0519 New’, and send it to the WeChat File Transfer Assistant.”
Marvis’s File Agent handled this complicated workflow steadily and accurately. It filtered all matching files, sorted them properly, merged them into a complete PDF, and renamed the file correctly. Most importantly, before accessing WeChat to send the file — a privacy-sensitive operation — it automatically paused and popped up a permission request. It never takes risky actions without user confirmation, showing excellent security awareness and precise control.
It also provides a dedicated Privacy Mode for sensitive work such as financial data and legal documents. Once enabled, Marvis switches to a local Qwen end-side model and works completely offline even without an internet connection. All data stays locally on your device with no cloud uploads, eliminating data leakage risks and offering great security for confidential work.
Drawbacks & Limitations: Areas for Improvement
To be objective, Marvis is not yet perfect and still has obvious room for optimization. The biggest issue is slow execution speed for complex tasks. Multi-step workflows like document merging and cross-app file transmission require noticeable waiting time and consume a relatively high number of tokens.
In addition, device support is currently limited. It runs stably on Windows and Android, while iOS and macOS versions are still in development, leaving Apple users unable to experience full functionality. Some refined GUI operations also respond slowly and occasionally freeze during execution.
Final Verdict: A True All-Round AI Worker Worth Trying
After one week of intensive use, I can confirm that Marvis is far more than a basic chatbot. It is a practical, executable AI worker that can take over your computer and complete real work independently across multiple scenarios.
Furthermore, Tencent offers a very generous free quota of 10 million tokens per day, which is more than enough for daily personal use. If you frequently switch between devices, struggle with complicated PC settings, or get tired of repetitive document work, Tencent’s new system-level AI Marvis is absolutely worth a try.