Google Antigravity: A Claude Code Alternative for AI-Powered IDE Development
Google Antigravity is a proprietary AI IDE developed by Google, released on November 18, 2025. It is a Visual Studio Code fork that integrates Gemini 3.1 Pro as the primary model, with additional support for Claude Sonnet 4.6 and GPT-OSS-120B. As a Claude Code alternative, it is best suited for developers who want a full IDE experience rather than a terminal-based CLI agent, with multi-agent orchestration built directly into the editor.
Google Antigravity vs. Claude Code: Quick Comparison
| Google Antigravity | Claude Code |
|---|
| Type | AI IDE (VS Code fork) | CLI Agent |
| IDEs | Standalone (Antigravity IDE) | Any editor via CLI / terminal |
| Pricing | Free during public preview | Usage-based via Anthropic API; ~$3–15/MTok |
| Models | Gemini 3.1 Pro, Claude Sonnet 4.6, GPT-OSS-120B | Claude 3.5 / Claude 3 Opus |
| Privacy / hosting | Cloud (Google) | Cloud (Anthropic API) |
| Open source | No (proprietary) | No |
| Offline / local models | No | No |
Key Strengths
- Multi-model flexibility: Antigravity ships with Gemini 3.1 Pro as default, but also natively supports Claude Sonnet 4.6 and GPT-OSS-120B. Developers can switch models without leaving the IDE, giving them control over cost, quality, and latency tradeoffs per task.
- Dual interface — Editor View and Manager View: The Editor View delivers a familiar VS Code-style coding environment. The Manager View introduces a dedicated multi-agent orchestration panel, letting developers define, monitor, and coordinate multiple AI agents on parallel tasks directly from within the application.
- Free during public preview: Google provides generous rate limits at no cost during the public preview period. Available for Windows, macOS, and Linux, lowering the barrier to adoption for individual developers and teams evaluating AI IDEs without budget commitment.
- Built on a mature VS Code foundation: Because Antigravity is a VS Code fork, users inherit the full extension ecosystem, keyboard shortcuts, and workspace configurations they already know. There is no tooling migration cost when switching from a standard VS Code setup.
Known Limitations
- Closed source and Google-controlled: Unlike open-source alternatives, Antigravity is a proprietary product. Roadmap, model availability, and pricing after the preview period are determined entirely by Google with no community input mechanism.
- Requires adopting a new application: Claude Code operates in any existing terminal or editor. Antigravity requires installing a separate IDE application, which may conflict with established team workflows built around a different editor or shell-based automation pipelines.
- Preview stage — stability not guaranteed: As a product released in November 2025 and still in public preview, production-level stability and support guarantees are not yet formally available. Feature set and API contract may change without notice.
Best For
Google Antigravity is best suited for developers who prefer a graphical IDE over a CLI workflow and want built-in multi-model switching. It is a good fit for engineering teams already invested in the Google ecosystem (Google Cloud, Gemini APIs) and for those evaluating AI IDEs with zero upfront cost during the preview window. Teams that need multi-agent orchestration without setting up a separate orchestration layer will find the Manager View particularly useful.
Pricing
- Public Preview: Free with generous rate limits. Available to all users on Windows, macOS, and Linux.
- Post-preview pricing: Not yet publicly announced. Check the official site for updates.
Prices are subject to change. Check the official Antigravity site for current details.
Tech Details
- Type: AI IDE (VS Code fork)
- IDEs: Standalone Antigravity application (Windows, macOS, Linux)
- Key features: Editor View (VS Code-compatible IDE), Manager View (multi-agent orchestration), multi-model switching, Gemini 3.1 Pro / Claude Sonnet 4.6 / GPT-OSS-120B support
- Privacy / hosting: Cloud (Google infrastructure)
- Models / context window: Gemini 3.1 Pro (primary), Claude Sonnet 4.6, GPT-OSS-120B. Context window sizes are not publicly documented for the Antigravity product specifically.
- Open source: No (proprietary Google product)
- Released: November 18, 2025
When to Choose This Over Claude Code
- You want a full graphical IDE experience with AI assistance, not a terminal-only CLI agent.
- You need multi-agent orchestration built into the editor without configuring external tools.
- You want the option to switch between Gemini, Claude, and GPT models in the same interface.
- You are evaluating AI IDEs at zero cost during the public preview period.
When Claude Code May Be a Better Fit
- Your team is committed to a specific editor (e.g., JetBrains, Neovim) and cannot adopt a VS Code-based IDE.
- You need shell-level automation that integrates directly with CI/CD pipelines — Claude Code operates from any terminal without a GUI requirement.
- You require an open-source or self-hostable solution for compliance or data sovereignty reasons.
- You need production-stable tooling with formal support SLAs, which Antigravity does not offer during preview.
Conclusion
Google Antigravity is a strong Claude Code alternative for developers who want an integrated, graphical AI coding environment with multi-model support and built-in agent orchestration. It removes the need to manage separate CLI tools for agentic workflows. The free preview makes it worth evaluating for any team looking to explore AI IDEs without upfront cost.
Sources
FAQ
Is Google Antigravity free?
Yes. During the public preview period, Google Antigravity is free to use with generous rate limits. Post-preview pricing has not been publicly announced.
Does Google Antigravity work with VS Code extensions?
Google Antigravity is a VS Code fork, which means it is built on the same foundation. Compatibility with specific VS Code extensions depends on each extension's distribution policy (VS Code Marketplace vs. Open VSX), as the fork may not have access to the Microsoft Marketplace. Check the official documentation for extension support details.
How does Google Antigravity compare to Claude Code?
Claude Code is a CLI agent that runs in any terminal and works with your existing editor. Google Antigravity is a full AI IDE (VS Code fork) with graphical interface, multi-model switching, and a Manager View for multi-agent orchestration. Antigravity requires installing a separate application; Claude Code does not. Antigravity is free during preview; Claude Code costs are based on Anthropic API token usage.
Which AI models does Google Antigravity support?
Google Antigravity supports Gemini 3.1 Pro as the primary model, plus Claude Sonnet 4.6 and GPT-OSS-120B. Developers can switch between these models within the IDE without leaving the application.
