Replit Agent

Browser-based AI app builder — Agent 3 writes, debugs, tests, deploys, and hosts full apps from a prompt, with effort-based pricing.

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About Replit Agent

Replit Agent is the AI software engineer baked into Replit, the browser IDE that also handles hosting + deployment. Agent 3 (third-gen, 2026) writes code, autonomously debugs errors, creates unit tests, manages databases, and ships apps end-to-end. Replit shifted to ‘effort-based pricing’ in mid-2025 — simple tasks under $0.25, complex tasks scale up. Four plans (Starter free, Core $20/mo annual, Pro $95/mo annual replacing Teams Feb 2026, Enterprise) each with a credit wallet ($25 Core, $100 Pro) for Agent usage. All-in-one from prompt to deployment in the browser.

Key Features

Agent 3 — autonomous AI software engineer
Effort-based pricing: simple tasks under $0.25
Browser IDE — no local install required
Built-in databases, auth, hosting, deployment
Pro tier ($95/mo) replaces Teams (Feb 2026)
Core plan $20/mo with $25 monthly credit wallet
Multi-language: Python, JS/TS, Go, Rust, more
Live collaboration with multi-cursor editing

Use Cases

Build and deploy full apps from a natural-language prompt
Spin up MVPs with auth, database, and hosting in one tool
Generate, debug, and test code autonomously
Collaborate in real time with teammates
Replace VS Code + Vercel + Supabase for prototypes
Run Agent 3 for complex feature implementation

Pros & Cons

Pros

  • All-in-one: IDE + AI + deployment + hosting
  • Accessible from any browser, including iPad/Chromebook
  • Effort-based pricing aligns cost with complexity
  • Generous Starter free tier

Cons

  • Credit spend can climb fast for non-trivial apps
  • Agent 3 still needs manual intervention on edge cases
  • Less code control than local VS Code + Cursor
  • Heavy reliance on Replit's hosting platform