Google Antigravity 2.0 goes after Claude Code and OpenAI Codex with a full agent-first rebuild
Google has taken the IDE off Antigravity. What is left, announced at I/O 2026, is a standalone desktop app built around agents rather than a code editor with AI bolted on.
It is the company’s most direct response yet to Claude Code and OpenAI Codex, the two tools that have built strong followings among developers over the past year. Antigravity 2.0 is out today on macOS, Linux, and Windows, running on a new model called Gemini 3.5 Flash. The headline number Google is leaning on: 289 output tokens per second on Artificial Analysis, against 67 for Claude Opus 4.7 and 71 for GPT-5.5. Speed is the easy pitch. The more useful claim is that 3.5 Flash also beats Google’s own Gemini 3.1 Pro on coding and agentic benchmarks.
