A critical review of Google's Antigravity 2.0 AI coding agent and Gemini 3.5 Flash model released at Google I/O. Antigravity 2.0 now offers four modes (CLI, SDK, IDE, and standalone app), but the reviewer finds the CLI buggy and the desktop app riddled with UI issues — no terminal access, broken sidebar resizing, and non-functional file navigation. The model itself underperforms on benchmarks compared to GPT and Claude, excelling only at SVG tasks. Gemini 3.5 Flash's significant price increase (to $1.50 input / $9 output per million tokens) is also criticized. The reviewer recommends alternatives like GLM 5.1 and Kimmy over paying for Google's $200 plan.

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