Antigravity now lists Claude Sonnet 5.5 and Opus 5.5 for Enterprise
As of October 11, 2026, Antigravity's official model table now lists Claude Sonnet 5.5 and Opus 5.5 thinking models for Enterprise. Both remain listed for Google AI Ultra and non-trial Google AI Pro subscriptions.
SessionWatcher editorial · Published · Updated · Source announcement: 2026-10-11
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Enterprise access now appears in the model table
Antigravity's official models page now lists Claude Sonnet 5.5 (thinking) and Claude Opus 5.5 (thinking) as available on Enterprise. In the change observed on October 11, 2026, both Enterprise entries switched from unavailable to available. The page does not state when that access took effect.
Sources: Models
Other plan restrictions remain
Both models are also listed for Google AI Ultra and Google AI Pro, but Pro access is restricted to non-trial subscriptions. Neither is listed for Free or Google AI Plus. The page says users can choose their reasoning model from the model selector beneath the conversation prompt box.
Sources: Models
AI assisted reporting, checked against the linked official sources. Source pages checked 2026-10-11. Editorial process and corrections.