Google Antigravity IDE

Google Antigravity IDE is an agentic development environment for people who want software tasks handled across an editor, terminal, and browser. It suits individual developers who can make use of parallel agents and review their structured deliverables. Its free individual plan lowers the barrier to entry, but workload-dependent quotas and the lack of enterprise support narrow its fit.

Overview

Antigravity goes beyond code suggestions: asynchronous local agents can plan and execute work across workspaces and codebases, while the browser agent can read dashboards, take source-control actions, and test interfaces. That breadth is useful for multistep development tasks. It also makes usage limits less predictable, since quotas and model availability depend on the Google AI plan and agent workload.

Key features

Agent and Tab provide helper suggestions and real-time code completion. Unlimited Tab completions across plans give routine editing a dependable baseline even when agent usage is constrained.

Agents can run in parallel across workspaces and codebases. Git worktrees, scoped settings and permissions, and support for multiple folders help keep projects separate while enabling cross-codebase work. Deliverables can include Markdown plans, code diff views, architecture diagrams, images, and browser recordings, giving users concrete artifacts to review rather than just a completed task.

The browser agent extends that workflow to dashboard reads, source-control actions, and UI testing. By default, agents are limited to project folders and request permission for terminal commands outside the sandbox on macOS and Linux; on Windows, they request permission before any terminal command. These controls help contain agent activity, though they do not remove the need to review permissions and outputs.

The standalone IDE supports macOS 12 or later, Windows 10 64-bit, and Linux systems meeting specified glibc and glibcxx minimums. Official extensions are listed for Visual Studio Code, Visual Studio 2026, JetBrains IDEs, Zed, and Xcode. AI assistance, database tools, and an extensions marketplace are also included.

Pricing

The For Individuals plan costs nothing and includes a variety of agent models, unlimited Tab completions, unlimited Command requests, and basic weekly rate limits. It is a sensible starting point for individual developers, but those basic limits can make heavier agent workloads less suitable.

Google AI Pro offers more rate limits and a flexible AI credit pool; Google AI Ultra offers even more limits, a flexible pool, and higher access to the latest Gemini models. Both plans have custom pricing. All plans receive baseline access to Gemini models and unlimited Tab completions, while Ultra gets the highest quotas and access to third-party models. The higher tiers are aimed at users who need more agent capacity, but quotas still vary with workload and may change.

The Business plan is billed via Google Cloud, with API access at consumption-based pricing. Eligible Gemini Enterprise Standard or Plus plans start at $30 USD per seat per month; pay-as-you-go has a $0 seat fee and consumption-based pricing. This is a separate business route, not a substitute for enterprise support: Antigravity IDE itself is not supported for enterprise customers, who are directed to Antigravity 2.0 or Antigravity CLI.

Plans do not currently support BYOK or a bring-your-own endpoint for extra rate limits, nor custom organizational contracts. That limits options for teams seeking to bring their own model access or negotiate a tailored arrangement.

Platforms

The standalone IDE is available for macOS, Windows, and Linux, subject to minimum operating-system and library requirements. Official extensions broaden integration to Visual Studio Code, Visual Studio 2026, JetBrains IDEs, Zed, and Xcode. The listed platforms also include Android and API, though the standalone IDE's supported operating systems are desktop systems.

Who it's for

Antigravity is a strong fit for individual developers who want agents to take on multistep work across code, terminal, and browser, and who are comfortable reviewing plans, diffs, and other artifacts. Its project isolation controls and parallel agents can also suit work that spans codebases. It is a weaker fit for enterprise customers, teams needing predictable agent quotas, or organizations that require custom contracts or bring-your-own model endpoints.

Pros and cons

Pros

• Agents can work asynchronously in parallel across workspaces and codebases, which suits tasks that span more than one project.
• Plans, diffs, diagrams, images, and browser recordings make agent work easier to inspect.
• Unlimited Tab completions and Command requests are included in the free individual plan, with baseline Gemini access across plans.
• Sandbox permissions and project-folder limits provide controls over terminal activity and project scope.

Cons

• Agent quotas and model availability depend on plan and workload, so capacity is not fixed.
• Enterprise customers cannot use Antigravity IDE and must consider Antigravity 2.0 or Antigravity CLI.
• There is no BYOK or custom organizational contract support for extending limits or tailoring terms.
• The higher Google AI tiers use custom pricing, making their cost harder to compare from the outset.

Alternatives

Choose GitHub Codespaces if a freemium development environment with listed 2-core and 4-core compute plans is a better match than Antigravity's agent-focused workflow; those plans are priced at $0.18 a month and 0.36 USD, respectively.

Replit is worth considering for its free Starter plan, which includes daily usage, one live project, and one background task at a time. For a free, open-source IDE, Theia IDE is another option; its online demo is limited to 30 minutes per session. Visual Studio Code, Apache NetBeans, and Eclipse IDE are free alternatives; NetBeans is free for commercial and non-commercial use under Apache License 2.0, while Eclipse is open source under Eclipse Public License 2.0.

Alpha Anywhere offers a free Community Edition for web and mobile development, with connections to any data source and unlimited apps. GeneXus offers a free plan for building a first MVP with AI assistants and agents, as well as a Pro tier for production solutions and team collaboration.

For broader category comparisons, see Web Development IDEs, AI Code Editors, and AI Code Generators.

Verdict

Choose Antigravity IDE if you are an individual developer who wants agents to coordinate work across code, terminal, and browser, with artifacts and project controls that help you review the result. The free plan makes it practical to start, but variable quotas are its main trade-off. Look elsewhere if you need enterprise support, fixed agent capacity, or custom model and contract options.