Antigravity IDE spotted with Gemini 4 Argon and Claude Opus/Sonnet 5.5

weskambale · x · 2026-10-23

A developer shared a screenshot of Google's Antigravity IDE showing Gemini 4 Argon (High) alongside newly listed Claude Opus 5.5 Medium and Claude Sonnet 5.5 Medium, plus Gemini 3.8 Flash models and GPT-OSS 120B. If real, the IDE now aggregates fresh models from Google, Anthropic and OpenAI in one place. Unverified — from a personal account.

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