Replit AI
Replit AI is Replit’s integrated AI coding system inside its browser-based IDE, the Project Editor. It centers on Replit Agent, an AI builder that turns natural language into working software and related artifacts, including web apps, native mobile apps, slide decks, animations, designs, data visualizations, and documents that can live side by side in one project. Agent also has a lightweight Lite mode for quick, scoped edits in context. Lite mode was formerly called Fast Mode, and it superseded the separate Replit Assistant in late 2025.
In the Project Editor, Replit Agent can set up your environment, install dependencies, run code, and generate working applications that you can deploy, all through a chat workflow. Agent’s Lite mode handles quick, scoped changes like visual tweaks, small bug fixes, and targeted edits, while Economy and Power modes step up cost and capability for larger builds.
Agent has three modes, Lite, Economy, and Power, plus an optional Turbo toggle inside Power for the fastest runs on Pro and Enterprise plans. Across modes, Agent can apply approved code changes, manage packages, update databases, and roll back edits via checkpoints. A Model selector lets you pin the primary model within a mode and dial an Effort level from Low to Max, and Plan mode lets Agent draft and revise an ordered task list before it touches any code or data.
Official website: replit.com/ai
Related Resources
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