Antigravity turns into a full agentic development platform with desktop app, CLI, and SDK

Google just made its most aggressive move yet in the rapidly evolving agentic coding market. At I/O 2026 on Monday, the company unveiled Antigravity 2.0, transforming what started as a Cursor competitor into a sprawling developer platform complete with an updated desktop app, a new command-line tool, and an SDK for building custom agents.

The original Antigravity launched in November 2025 alongside Gemini 3 as a free, agent-first IDE. Version 2.0 is a different beast entirely. The centrepiece is the revamped desktop application, which puts multi-agent orchestration front and centre. Developers can now set several agents to work on problems simultaneously, design custom subagent workflows, and schedule tasks that run automatically in the background.

The integrations go deep. Antigravity 2.0 connects natively with Google AI Studio, Firebase, and Android, letting developers export projects from AI Studio directly to their local Antigravity instance while carrying over full context. For those who prefer working in the terminal, Google is shipping a brand-new Antigravity CLI built in Go, which the company says is faster and more responsive than its predecessor.

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That predecessor, Gemini CLI, is being shown the door. Google confirmed that consumer access to Gemini CLI and Gemini Code Assist IDE extensions will cease on 18 June 2026 for AI Pro, AI Ultra, and free-tier users. Enterprise customers on Gemini Code Assist Standard or Enterprise licences will retain access, but the message is clear: Antigravity is the future.

Rounding out the platform is the Antigravity SDK, which gives developers the building blocks to create custom agents on top of Google’s coding infrastructure. Google Cloud customers can connect directly to Antigravity, and custom agent templates are available in AI Studio for enterprise use cases. The company says it has already used Antigravity internally to build consumer features, including custom UI generation in Google Search.

Powering all of this is the new Gemini 3.5 Flash model, which Google claims outperforms Gemini 3.1 Pro on coding and agentic benchmarks while running four times faster than competing frontier models. In a neat bit of self-reference, Google says Gemini 3.5 Flash was itself co-developed using Antigravity. The desktop app also gains native voice command support, letting developers talk to their agents rather than type.

On pricing, Google is introducing a new AI Ultra tier at $100 per month, which offers five times the usage limits of the AI Pro plan. The existing top-tier AI Ultra subscription drops from $250 to $200 per month, delivering 20 times the Pro limits. The $100 price point puts Google in direct competition with OpenAI’s recently launched ChatGPT Pro tier and Anthropic’s Claude Max, both of which also charge $100 per month for enhanced access to coding tools. The premium tier at $200 matches Anthropic’s top Claude Max plan.

The timing is no accident. The agentic coding tools market is booming, and every major AI lab is scrambling for developer loyalty. GitHub recently paused new Copilot sign-ups as agentic workloads reshaped the economics of AI-assisted development, and GitLab has begun restructuring for what it calls the “agentic era.” With Antigravity 2.0, Google is betting that the future of coding belongs to whoever can orchestrate the most agents, the fastest, across the most surfaces.