Bolt.new vs Google Antigravity
Pricing
Bolt.new: Free tier, Pro from $20/mo
Google Antigravity: Free for individuals with weekly limits; higher limits with Google AI Pro ($19.99/mo) or Ultra (from $99.99/mo)
Description
Bolt.new: Build full-stack web apps in your browser by describing what you want, no local setup needed
Google Antigravity: Google's agent-first coding platform: a desktop app for running several coding agents at once, plus an IDE, a CLI and a Python SDK
Pros
- Zero setup: open a browser tab and start building
- Live preview updates as the AI writes code
- Supports React, Next.js, Astro, and more out of the box
- The free plan for individuals includes unlimited Tab completions and every product feature, including scheduled tasks and the CLI
- Run several local agents in parallel and group the conversations into projects across workspaces
- Browser-in-the-loop agents can take over repetitive front-end tasks
Cons
- Free tier token limits mean you hit walls mid-project
- Browser-based means no access to native tools, local databases, or heavy computation
- Generated code can be messy and hard to maintain long-term
- The free quota refreshes only once a week; Google AI Pro refreshes it every five hours
- Third-party models are reserved for Google AI Ultra; the other plans run on Gemini models
- You can't add your own API key to get more usage
Details
Bolt.new runs a full Node.js environment inside your browser using WebContainers. You describe what you want to build, it writes the code, and you see a live preview instantly. No installing Node, no terminal, no VS Code, just a browser tab.
This is genuinely useful for prototyping. You can go from “I need a landing page with a waitlist form” to a working app in minutes. But the limitations show up when you try to build something complex: the free tier token limits are tight, and the generated code sometimes needs cleanup before it is production-ready. Think of it as a rapid prototyping tool, not a replacement for a real development setup.
Antigravity is Google’s development platform built around agents rather than an editor with a chat panel. The main app is a command centre where you start and steer several agents at once, group conversations into projects and schedule recurring messages. There is also a full IDE, a terminal CLI and a Python SDK for building your own agents on the same harness.
The free plan for individuals is the main draw. You get the agent, unlimited Tab completions and every feature without paying, within a weekly quota, which makes it easy to try next to Cursor or Claude Code.
Limits are the catch. Google sets them by available capacity and by how much work the agent does, so the number of prompts you get varies from task to task. Google AI Pro ($19.99/month) raises the limits and refreshes them every five hours, and Pro and Ultra users can buy AI credits for usage beyond the quota. Teams can get it through Google Cloud’s Gemini Enterprise, with seats from $30 a month.
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