World’s first Agentic AI phone acts as your assistant:Chinese startup launches ‘StepX Neo’ — everything you need to know

The smartphone industry is moving into a new phase where artificial intelligence is expected to do much more than answer questions. Instead of simply responding to prompts, the next generation of AI is designed to understand what users want, make decisions, and complete tasks on their behalf. This new approach is called the agentic AI era, and a Chinese startup called StepFun believes it has built the world’s first smartphone around this idea. Founded in 2023 by former Microsoft employees, StepFun recently introduced the StepX Neo, an AI-first smartphone that puts an intelligent digital agent at the center of the user experience. Interestingly, the announcement came just before reports about OpenAI’s own possible AI smartphone project. Although StepFun is not a household name, it has already worked with companies like Oppo and Geely, providing AI-powered services for their products. Now, it wants to take that experience directly to consumers. Smartphones are changing: From apps to AI agents For years, smartphones have relied on apps. If you wanted to book a ride, reserve a hotel, or edit a document, you had to open separate apps and perform each step yourself. Agentic AI aims to change that completely. Instead of tapping through multiple apps, you simply tell your phone what you want in everyday language. The AI agent then figures out the necessary steps, opens the required services, and completes the task for you. In other words, the operating system is no longer just a place to launch apps. It becomes an intelligent coordinator that manages different services and delivers results automatically. An agentic AI smartphone can independently perform multi-step tasks across several apps or services. It can make meaningful decisions and take important actions without asking for approval after every single step. Most of the planning happens directly on the device, even if some tasks are processed in the cloud. However, the level of intelligence will depend on the phone’s hardware. Premium smartphones with powerful processors will be able to run advanced AI models locally, offering faster performance, better privacy, and offline capabilities. Budget and mid-range devices may rely more heavily on cloud-based AI. What makes StepX Neo different? Unlike today’s AI-powered smartphones that simply add AI features to existing software, the StepX Neo has AI built into its core. Its main assistant, called Step Amoo, is deeply integrated into the phone’s custom operating system, Step AOS. Users can interact with it naturally, just as they would with a chatbot. One of its biggest advantages is that it can perform essential AI functions completely offline, meaning many everyday tasks don’t require a constant internet connection. The system can understand a single spoken request and automatically combine multiple apps, web services, and built-in phone tools to deliver a complete result. Over time, it also learns your personal preferences. For example, if you usually choose pet-friendly flights or prefer a particular restaurant, the phone remembers those habits and uses them automatically in future tasks. Built for travelers StepX Neo also includes several travel-focused AI features. It can translate face-to-face conversations, phone calls, text messages, and even text found on street signs, restaurant menus, or museum displays in 32 languages, including regional dialects. Even without mobile network coverage, the phone can access saved travel plans, display local transportation schedules, and help users find nearby attractions or events. For international trips, the AI agent can also remind users about flight check-in times, highlight visa requirements, and even help fill out customs forms automatically. Inside Step AOS: An operating system designed for AI The real innovation behind the StepX Neo is its custom operating system called Step AOS.
Instead of treating AI as another app, Step AOS was designed specifically around AI agents. It uses what StepFun calls an Atomic Capability Engine, which organizes the phone’s functions into four main categories: This allows the AI agent to combine different capabilities seamlessly to complete complex tasks. The operating system is also equipped with a voice-and-vision interface called NUI (Natural User Interface). It learns from how users interact with the device, gradually shifting the experience from manually operating a phone to simply telling it what needs to be done. Memory, Smarter decisions and Stronger security StepFun says trust is essential for an AI agent that can act independently. To address this, it has built three key systems into Step AOS. Powering everything is Step Edge, StepFun’s own AI model designed specifically to run efficiently on smartphones. The company claims it performs better than comparable edge AI models across 29 benchmark tests, although it has not yet revealed which benchmarks were used. Real-world integrations will decide its success A smart AI agent is only useful if it can work with the services people already use. To make that possible, StepFun has partnered with major Chinese platforms, including Ctrip, Alipay, Didi, Meituan, WPS, and CapCut. These integrations cover travel bookings, digital payments, ride-hailing, office productivity, local services, and content creation.
The real challenge will be whether the phone can truly complete an entire task—from booking transportation to editing a video—without requiring users to jump between multiple apps. Is StepX neo really the future? Despite the bold claim of being the world’s first “AI agent phone,” there are still many unanswered questions. StepFun has generated considerable attention with its announcement, but it remains unclear whether the StepX Neo will become a widely available commercial product or primarily serve as a showcase for the company’s AI technology. Even so, its launch reflects a growing shift in the smartphone industry. As companies race to build AI that can think, plan, and act on behalf of users, the future of smartphones may be less about opening apps and more about simply asking your phone to get things done.