Fei Design Mode Ship designs straight to production without developers in between

Fei Studio

Fei Studio is the operating system for building in production, enabling Product and Design teams to ship features directly inside complex, existing codebases without starting from scratch. By uniting design, product, and development into an AI-native workflow, Fei transforms how organizations move from prototype to production-ready code.

Product Highlights

• AI-Native Codebase Understanding: Automatically ingests your entire codebase—CSS conventions, API patterns, components, and architecture—in under 2 minutes, ensuring every output matches your team's actual standards
• Triple Output Per Task: Every completed task delivers a visual prototype, production-quality code, and a full spec doc with pull request—ready for engineering review and merge
• Self-Updating Agent Knowledge: Maintains near-real-time understanding of your evolving codebase without manual re-ingestion, so context stays current across all tasks
• Non-Technical Friendly Interface: Purpose-built UI that eliminates the need for IDEs, terminals, or coding knowledge—empowering product managers and designers to build directly
• Per-Task Pricing Model: Transparent cost structure based on completed tasks, not per-seat licenses or per-step actions, scaling with actual value delivered

Use Cases

• Accelerate Feature Delivery: Transform product ideas from PRDs, screenshots, or Figma designs into production-ready implementations without engineering bottlenecks
• Validate Product Ideas: Rapidly prototype and test concepts within your actual codebase environment, ensuring feasibility before committing engineering resources
• Refactor Legacy Interfaces: Modernize existing screens and components while maintaining architectural consistency and reusing established patterns
• Turn Support Feedback Into Changes: Convert customer feedback directly into codebase-aligned improvements with full context and specifications
• Create Stakeholder Demos: Generate working prototypes and production-grade code simultaneously for impactful presentations and faster approvals

Target Audience

Fei Studio is designed for mid-to-large product organizations where Product Managers, Designers, and Engineers need to collaborate more efficiently—particularly teams struggling with long development cycles, frequent handoff friction, or backlogs that prevent rapid iteration on customer-facing features.