Compare Google Antigravity and Windsurf side by side. Both are tools in the Coding Agents category.
Updated March 9, 2026
Choose Google Antigravity if free during preview phase with access to cutting-edge Gemini 3 models.
Choose Windsurf if most generous free tier with 25 credits/month among AI coding assistants.
Want to compare Google Antigravity and Windsurf on your own traffic?
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 250+ models through one gateway. Free tier covers 10K traces per month. Setup in 5 minutes, no credit card.
| Category | Coding Agents | Coding Agents |
| Pricing | — | Freemium |
| Best For | — | Developers who want an AI-enhanced code editor with strong autocomplete |
| Website | developers.googleblog.com | codeium.com |
| Key Features | — |
|
| Use Cases | — |
|
Key criteria to evaluate when comparing Coding Agents solutions:
Google Antigravity is Google's agentic development platform, announced alongside Gemini 3 in late 2025. Built as a modified VS Code fork, Antigravity combines a traditional AI-powered editor with a Manager View for orchestrating multiple autonomous agents working in parallel across workspaces. Agents can plan, execute, and verify complex tasks across editor, terminal, and browser environments. The platform achieved 76.2% on the SWE-bench Verified benchmark, demonstrating strong code generation capabilities. Antigravity supports Gemini 3 Pro, Deep Think, and Flash models, plus third-party models including Claude, making it flexible for developers who want to use different AI providers. Currently available in preview for personal Gmail accounts on Mac, Windows, and Linux, Antigravity is free during the preview phase but expected to introduce paid tiers. Google AI Pro subscribers ($20/month) and AI Ultra subscribers ($250/month) receive higher rate limits, with rate limits refreshing every 5 hours for Pro users.
Windsurf is an AI-powered integrated development environment originally built by Codeium and acquired by Cognition AI in December 2025 for approximately USD 250 million. As of February 2026, Windsurf ranked number 1 in the LogRocket AI Dev Tool Power Rankings, ahead of both Cursor and GitHub Copilot. The platform standout feature is Cascade—an agentic AI that understands your codebase, suggests multi-file edits, runs terminal commands, and works as a coding partner. Windsurf includes a Memories feature that retains codebase context and automatic Lint Fixing that saves debugging time. Built as a VS Code fork, Windsurf offers the most generous free tier among AI coding assistants with 25 prompt credits per month on the free plan. Paid plans start at USD 15/month for Pro (500 credits), USD 30/user/month for Teams, and USD 60/user/month for Enterprise. While Windsurf delivers excellent autocomplete suggestions and powerful AI features, users report occasional Cascade instability, limited deployment quotas on free tiers, and VS Code performance overhead. The platform is particularly well-suited for developers who want powerful AI features without heavy costs.
AI-powered developer tools that can write, review, debug, and refactor code—ranging from IDE copilots to fully autonomous software engineering agents.
Browse all Coding Agentstools →One platform for routing, observability, tracing, and evals across every LLM provider.