Google Antigravity adds Claude Opus and Sonnet 5.5

// 1h agoPRODUCT UPDATE

Google Antigravity adds Claude Opus and Sonnet 5.5

Google Antigravity now lists Claude Opus 5.5 (thinking) and Claude Sonnet 5.5 (thinking) in its model picker, limited to paid, non-trial Google AI Pro and Google AI Ultra plans.

// ANALYSIS

This is a meaningful interoperability win for Antigravity, but access remains tightly gated and quota economics may matter more than model quality.

–Developers can compare Anthropic’s frontier reasoning models with Gemini inside one agentic IDE.
–Free, Google AI Plus, trial Pro, and Enterprise users are excluded.
–Claude 4.6 and GPT-OSS-120B are scheduled for removal on November 2.
–Anthropic positions Sonnet 5.5 as the faster, lower-cost complement to Opus 5.5.
–Early user reports flag aggressive quota burn, so benchmark cost per completed task before changing defaults.

// TAGS

google-antigravityclaude-opus-5-5claude-sonnet-5-5idecoding-agentai-codingllmreasoning

DISCOVERED

1h ago

2026-10-03

PUBLISHED

1h ago

2026-10-03

RELEVANCE

9/ 10

AUTHOR

FrontieraTechIT

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