Devin vs Google Antigravity
Pricing
Devin: From $500/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
Devin: Autonomous AI software engineer that takes tasks, writes code, runs tests, and submits PRs on its own
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
- Can work on tasks independently while you do other things
- Handles the full cycle: plan, code, test, debug, submit PR
- Learns your codebase conventions over time
- 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
- $500/mo minimum makes this a serious commitment for a solo founder
- Results vary wildly: great for routine tasks, unpredictable for complex ones
- You still need to review its work carefully
- 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
Devin works more independently than most AI coding tools. You assign it a task (“fix this bug,” “add this feature,” “set up CI/CD”) and it goes away, works on it, and comes back with a pull request. You do not sit and watch; it works asynchronously.
The $500/month price tag is steep for solo founders, and that is the honest reality. The people getting value from Devin are those with more tasks than time, who can keep it busy with well-defined work. If you have 3 bug fixes and 2 small features to ship this week and cannot hire a developer, Devin might pay for itself. If you are pre-revenue and watching every dollar, this is not where you start.
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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