Replit Agent 4: 창의성을 위해 만들어졌습니다.

Introducing Agent 4 — our fastest, most versatile Agent yet. It's built around a simple idea: you should spend your time creating, not coordinating. Agent 4 takes on the tedious-but-necessary work in the background so you can stay in creative flow and ship production-ready software 10x faster. Because Replit is where software is built, run, and shipped — all in one place — Agent 4 can handle both the complex and the mundane, so you can focus on what's uniquely human: creativity. Summary Agent 4 is built on four pillars designed to keep you in creative flow and ship production-ready apps 10X faster. - Design Freely: Generate design variants on an infinite canvas, tweak them visually, and apply the best one directly in your app. - Move Faster: Tackle auth, database, back-end functionality and front-end design all at once with parallel agents, with progress across tasks clearly visible. Once done, tasks can be merged seamlessly into the main app. - Ship Anything: Create mobile and web apps, landing pages, decks, videos and more in the same project, with shared context and design so you can scale efficiently. - Build Together: You and your team can focus on planning your app while the Agent handles all the messy coordination and execution. Submit requests in any order, and Agent 4 intelligently sequences them and executes in the best order. With Agent 3, we pushed autonomy forward. Agent could run for hours independently- self-testing, fixing issues, and driving builds ahead on its own. At the time, it set a new bar for autonomous vibe-coding agents and showed what was possible when software could move without constant oversight. That breakthrough unlocked something important: once the mechanics of building can run independently, the next frontier is creative control. With Agent 4, we’re building on that foundation by putting human creativity at the center of the process. Agent 4 Agent 4 is built on four pillars designed to keep you in creative flow: tighter iteration loops, less context switching, fewer mundane tasks, and more progress per minute. What makes this possible is that it's the complete environment where software is built, run, and shipped. That full-stack context allows Agent 4 to handle both the complex and the tedious, so you can focus on what’s uniquely human: creativity. Let’s walk through the ecosystem of improvements that bring this to life. Replit Agent 4 is incredible. Its ability to take a one-shot prompt and flesh out the requirements before a full build is unmatched. It requires very little guidance to take a rough concept to a functional prototype. This makes my life as a Product Manager 10x easier. Rather than writing requirements and waiting for Figmas, I can show, not tell. — Alex Meyers, Principal Product Manager, Gusto 1. Design & build in the same place, anytime Design iteration is the most frequent kind of change—and often the slowest. In many teams today, design and development happen in different environments. That separation can sometimes create extra coordination overhead, especially when small visual changes need to be reflected across both design and code. With Agent 4, we’re dramatically speeding up design iteration by removing that friction. Design and code now live in the same environment. You can explore ideas, generate variants, and refine details inside your design board—without disrupting your working app or breaking your flow. When you land on a design that works, you can bring that into your app and integrate them into production code. You can explore freely while it builds in the background, then move forward with confidence. The result is faster iteration, fewer surprises, and designs that don’t just look good in isolation—they translate cleanly into the real product. To make that possible, Agent 4 introduces a set of focused improvements: 1. Design while the Agent builds You can now work on one part of your app while the Agent builds another. Design is no longer a separate mode, it’s something you can do continuously, at any point in the build process. 2. Faster design exploration with an infinite canvas & multiple UI variants Sometimes you don’t want the answer—you want options that you can compare, refine the strongest one, and move forward. Agent 4 introduces a canvas that allows free-form design exploration and lightweight flows for generating and managing UI variants directly in context, so you can explore and iterate on real UI without leaving your app. 3. More precise and reliable design controls We are providing more precise design controls like multi-select, hover/active state editing, responsive overrides, hover-to-preview interactions and easy undo etc. to enable you to make much more precise design changes directly in the UI, and those changes are applied straight to production code. Agent 4 unlocks true collaboration and real-time learning — now our teams can design and build with our closest partners live, turn instant feedback into measurable wins