STEPX (Jieyue Terminal), a large-model native AI device brand, held a launch event in Shanghai themed "Ready Builder One," officially unveiling its first large-model native agent phone, the STEPX Neo, which went on sale simultaneously on e-commerce platforms including JD.com, Tmall, and Douyin.
The STEPX Neo Pioneer Edition ships with the agent-native operating system Step AOS 1.0 (Step Agentic-native OS) and a new-generation personal agent called Jieyue Amoo, aiming to explore and grow together with the pioneers of the agent era.
Three-in-One "Software, Hardware, and Model" Architecture, Born for Human-AI Symbiosis
As STEPX's first large-model native agent phone, the STEPX Neo adheres to the principle of "human-AI symbiosis" from the outside in. Its "retro-futuristic aesthetic" design language carries forward STEPX's brand philosophy, blending familiar classic qualities with entirely new sensory experiences, allowing future intelligence to emerge in an innovative form that awakens classic memories.
The back panel of the STEPX Neo merges a transparent mechanical feel with the visual character of an intelligent life form, weaving together the history of AI exploration from sci-fi imagination and machine intelligence breakthroughs to large-model development through five easter eggs: "42," the "user_potential" code, the Turing Test binary, a deep-blue checkerboard, and the Transformer architecture, while also conveying the product philosophy that "AI amplifies human creativity."
Beneath the retro-futuristic exterior lies perception and expression "organs" dedicated to Jieyue Amoo. The agent's auditory enhancement system comprises an industry-leading six-microphone array, a low-power audio sensing chip, and the Whisper 1.0 pickup algorithm, enabling Jieyue Amoo to accurately recognize the user's voice even in complex acoustic environments. A dual-screen linkage system makes intelligence perceptible and imagination visible: the main screen serves human-AI interaction, while an independent MiniLED dot-matrix rear screen provides a dedicated expression space for the agent, making Jieyue Amoo's various states clear at a glance.
For Jieyue Amoo to enter the physical world, it also needs a system environment capable of nurturing a "human-AI symbiosis" relationship. The agent-native operating system Step AOS 1.0 was built from scratch for agents, integrating long-term memory, task scheduling, and security mechanisms into the system's foundation. A dual-entry interface design lets users find the agent at any time while also allowing the agent to respond to user needs at any moment. Dual-domain memory supports continuous recognition of user intent: the user domain records personal information, situational experiences, and preferences, while the agent domain accumulates knowledge, methods, and experience. A large number of underlying atomic capabilities in the system can be directly invoked by Jieyue Amoo, enabling it to remember users and complete tasks for them. A security architecture that is "trustworthy, visible, controllable, and reversible" makes task processes auditable and permissions and memory manageable, with ultimate control always remaining in the user's hands, giving users confidence to entrust tasks to Jieyue Amoo.
Jieyue's leading model matrix forms Jieyue Amoo's intelligent "brain." The STEPX Neo achieves "fast on-device response and deep cloud-side thinking" through device-cloud collaboration. On-device models can quickly handle simple commands such as adjusting system settings and creating alarms, and some local operations can even be performed without a network connection. For complex needs such as information queries, single-app processing, and multi-app collaboration, cloud-side models can plan and break down tasks, which are then executed and delivered by the device side. Hardware handles perception and expression, models handle understanding and decision-making, and software handles scheduling and execution. With the three-in-one system capability of "software, hardware, and model," the STEPX Neo is tailor-made for Jieyue Amoo's entry into the physical world and builds the foundation for realizing the terminal vision of "human-AI symbiosis."
A Terminal Gateway Connecting Makers and Ecosystem Partners
For makers, STEPX launched its first AI terminal-native development tool (IDE), Step Studio, which allows makers to generate AI apps, games, agents, and Skills using only natural language. Based on this development environment, the STEPX Neo fully opens up model, system, hardware, and ecosystem capabilities to makers. At the system layer, it opens rich underlying atomic capabilities, allowing sensors, cameras, the MiniLED dot-matrix rear screen, and more to participate in creation, and supports connecting to external services and professional agents through protocols such as MCP and A2A.
At the launch event, STEPX also showcased the latest results of the "STEPX Rhapsody Plan" initiated jointly with Bilibili. Creator @神奇阿宇Ayu developed a flight monitoring and assisted decision-making system called AYU FLYING HUB for a self-made flying skateboard, with the personal agent Jieyue Amoo participating in solution analysis, posture adjustment, and training review, and jointly completing flight tasks. Creator @肥牛卷不动 connected a brain-computer interface to the STEPX Neo and developed a mind-speaking Skill to help people with expression difficulties convey their emotional states. From flying skateboards to mind-based expression, the arrival of the agent era makes every wildly imaginative idea worth discovering and realizing.
For ecosystem partners, Jieyue Amoo has already partnered with nearly a hundred companies or products, including Alipay, Tencent, Ctrip, Didi, Jianying, Amap, and Meituan, achieving underlying ecosystem integration in areas such as local life, travel and mobility, office efficiency, and content creation. STEPX has entered a deep AI collaboration with Alipay to create a system-level solution for agents and a customized full-stack AI payment solution, building an end-to-end business loop for AI-native agents and achieving full connectivity from demand response and task planning to service fulfillment. With user authorization, Jieyue Amoo can invoke Abao's extensive life service capabilities, covering most life service scenarios on the STEPX Neo. STEPX is also the first terminal manufacturer to integrate Alipay Vibe Pay, allowing creators in Step Studio to complete a commercial loop from "generating applications and displaying products" to "completing transactions."
STEPX has also formed ecosystem partnerships with multiple Tencent products, bringing a richer user experience to STEPX Neo agent phone users. The first batch of Tencent products includes WorkBuddy, WeCom, and WeChat Reading. Users can invoke the WorkBuddy AI office agent through Jieyue Amoo or access the WeCom AI office collaboration platform to complete work tasks, while the WeChat Reading Skill also covers high-frequency daily scenarios such as note management, book search, and recommendations.
STEPX has also taken the lead in forming a deep partnership with Jianying in the agent field, delivering an A2A collaborative video creation experience. Jieyue Amoo works with Jianying's recently announced new professional creation agent, "Jianying Assistant," to enable cross-agent collaboration, bringing users a full-chain video interaction creation experience that includes one-sentence automatic video generation, intelligent creative inspiration recommendations, and conversational editing modifications.
In the agent era, AI is no longer an added value of smartphones but the value of the product itself. Based on this judgment, the STEPX Neo Pioneer Edition pioneers a "software, hardware, and model" full-stack pricing model, integrating the Step series models, the Step AOS system, the Step Studio tool, and the STEPX Neo phone hardware into a single price, with a final full-stack price of 3,999 yuan, available in carbon black and silicon silver color options. Users who purchase the STEPX Neo Pioneer Edition can enjoy a STEPX Token Plan offering 10 billion tokens per month for 12 consecutive months, providing strong support for AI makers exploring native agent applications.
At the same time, STEPX launched the "Jieyue Amoo Growth Plan." The first 10,000 users who meet the task criteria will receive a "Starship Ticket," allowing them to exchange their STEPX Neo for any new STEPX terminal at zero cost within the next five years. Specific benefit details can be found on the product page.
After launch, the STEPX Neo will continue to maintain its system update cadence, continuously enhance its capabilities, and keep expanding task scenarios, exploring and growing together with the pioneers of the agent era. In the future, STEPX will also attract more developers and makers to join the Step Studio creator family and participate in co-building the STEPX Neo ecosystem, truly enabling agent terminals to enter a new evolution model of rapid iteration and creating an innovative value system for the agent era. The STEPX Neo Pioneer Edition will begin pre-sales at 21:00 on October 13 and officially go on sale at 10:13 on October 16.
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