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Antigravity finally adds Claude 5.5: limited to paid Pro subscriptions and Ultra; legacy models November retired

Beating AI News: Google’s AI coding tool Antigravity has added Claude Opus 5.5 and Sonnet 5.5. Both models are available to Google AI Ultra and Pro users, but Pro access is limited to full subscribers; users still in the free trial cannot use them. Free and Google AI Plus users cannot access 5.5. Antigravity supports three levels of thinking intensity for model selection: Low, Medium, and High.

Google has also begun phasing out legacy models. Claude Opus 4.6、Sonnet 4.6 and GPT-OSS-120b will both be removed on November 2. According to the current model lineup, if no new models replace them, Free and Google AI Plus users will have no Claude or GPT-OSS options at that point, leaving only the Gemini series.

Google has not announced the specific quota for Claude 5.5, stating only that the Pro quota refreshes every 5 hours and is also subject to a weekly quota limit.Gemini and Claude use two separate quotas. Multiple Pro users have reported that running a single task with Opus GPT can quickly consume their 5.5-hour and weekly quotas; one user said that running it for about 5 minutes used half of their weekly quota.

Original link 9 Antigravity says it has added Claude Opus https://m.theblockbeats.info/flash/370179