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STEPX Neo Launches Developing

StepFun's agent-first phone moves from preorder to its first sales window

Decrypt reports a 3,999-yuan China launch with Amoo built into Step AOS, combining local commands, cloud tasks and partner-platform execution.

By AITrending2 min read
Sources (1)

Why now Decrypt's October 17 report follows the phone's October 13 preorder opening and October 16 first sales event. This is coverage of that distribution window, not a claim that the phone or its agent was first unveiled today.

The agent is part of the phone’s operating system

StepFun’s STEPX Neo is taking its agent-first phone pitch into a sales window in China, with a reported 3,999-yuan price and 12 months of included AI access. Decrypt’s October 17 report says preorders opened on October 13 and identifies October 16 as the first sales event. StepFun had already shown the agent, operating system and brand in July; neither the product concept nor its initial launch dates to this report.

The distinctive claim is where the agent lives. According to Decrypt’s account of StepFun’s presentation, Amoo is built into Step AOS 1.0, with memory and task scheduling in the operating-system layer. Users retain an app grid alongside a separate agent space. The proposed workflow is to request an outcome, such as arranging a ride, rather than manually step through each app.

The report describes a hybrid model setup. Simple commands such as alarms use a small model on the device, with some available offline; harder requests spanning apps use a larger cloud model. That makes the distinction practical: an agent-centered interface does not mean every task runs locally or remains usable without a network connection.

Partner execution is the other part of the pitch

Decrypt reports StepFun’s claim that nearly 100 companies and products have joined Amoo, naming payment and travel services among them. The described approach exposes functions the agent can call, while bookings, payments and other actions are still completed by the partner platforms. A partnership count does not establish that every integration works across every account or task.

The included AI plan lasts one year, and the report says StepFun has not disclosed the price afterward. Readers considering the phone therefore face both a hardware purchase and an unresolved longer-term service cost. The English report concerns the China launch and does not establish international availability.

These capabilities, partner arrangements and prices are attributed to Decrypt’s reporting and StepFun’s claims. AITrending has not tested the handset, verified completed deliveries or measured its success at executing tasks. The current news is the move toward selling an operating-system-level agent device, with local/cloud boundaries and service pricing that matter beyond the launch slogan.

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