Aider vs Google Antigravity
Pricing
Aider: Free (open source), you pay for API usage
Google Antigravity: Free for individuals with weekly limits; higher limits with Google AI Pro ($19.99/mo) or Ultra (from $99.99/mo)
Description
Aider: Open-source terminal AI that edits your code and makes clean git commits automatically
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
- Git-aware: every change is a well-described commit you can review or revert
- Works with Claude, OpenAI and DeepSeek models, plus local models
- Maps your whole codebase and can run linters and tests after each change
- 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
- Terminal-only: no GUI, no visual diff preview
- API costs are yours to manage and can add up with large context
- Development has slowed: the latest release, v0.86.0, came out in August 2025
- 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
Aider is a terminal tool that pair-programs with you. You tell it what to change, it edits the files, and (here is the part that wins people over) it creates a clean git commit with a descriptive message. Every change is tracked, reviewable, and revertable. No other AI coding tool handles version control this naturally.
Built by Paul Gauthier, it builds a map of your whole repository so it can work on larger codebases. The tradeoff is that it is terminal-only and requires you to bring your own API key, and there is a learning curve to getting the most out of it (knowing which files to add, how to prompt). Development has also slowed: the latest release, v0.86.0, came out in August 2025, and the repository has had no new commits since May 2026, so support for newer models may lag. If you are already comfortable with git and the command line, aider fits into your workflow like a glove. If you want a visual editor experience, look at Cursor or Cline instead.
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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