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Fast ModeFast Mode — cover image

Published:

Nov 19, 2025

Updated:

Oct 29, 2026The Replit Team

The Replit Team

Introducing Fast Mode: Instant, Precise Control Over Your Agent

fast-mode-example

Today, we’re excited to launch Fast Mode, the fastest way to guide the Agent to perform quick changes with precision.

For all the times you’ve thought “I just want to fix this one thing quickly”, Fast Mode is here.

Why We Built It

As Replit Agent has become more autonomous, users told us they loved the power, but missed the simplicity of small, targeted adjustments. Fast Mode bridges that gap.

fast-and-autonomous

What Fast Mode Does

Get rapid results with Fast Mode's efficient Agentic model—powerful enough for most tasks, significantly more affordable than Build mode, and optimized to complete your requests in the fewest steps possible.

You can utilize Fast Mode for quick fixes, visual iterations, and to add smaller pieces of functionality.

How It Works

Fast Mode can be activated by clicking the lightning bolt icon, then simply ask Agent in natural language what you want Agent to build:

Giving You Back More Control

Fast Mode is about making collaboration with your Agent feel more natural. Instead of working for you, it works with you—helping you shape every step.

Our hope is that this results in faster iteration, tighter feedback loops, and more confidence in every change you make.

Try It Now

Usage example

Fast Mode is available to all Replit users starting today. We can’t wait for you to try it and see how effortless changes can feel again.


Start now at https://replit.com/signup

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