Google Adds Claude AI to Antigravity, But Only for Paying Users
If you're on a free trial, you might lose access to top AI models.
Google has quietly updated its Antigravity coding assistant to include two new AI models from Anthropic: Claude Opus 5.5 and Claude Sonnet 5.5. These models are designed to help with complex coding tasks by thinking through problems step-by-step. However, they are only available to users on paid Google AI Pro (non-trial) and Google AI Ultra subscriptions. Free, Google AI Plus, and Enterprise users cannot access them.
At the same time, Google announced that older Claude models (Opus 4.6, Sonnet 4.6) and GPT-OSS-120b will be removed from Antigravity on November 2, 2026. This means free users will lose their only remaining Claude options. The change was first noticed by users and confirmed by a Google employee on social media, but Google has not made a formal announcement.
The catch is that even some paying Pro users on trial or promotional plans might not see the new models, and may receive warnings about losing third-party models. This suggests Google is limiting access to full-paying customers only. If you rely on Antigravity for coding, you may need to check your subscription status to ensure you keep access to the best AI tools.
- Google added Claude Opus 5.5 and Sonnet 5.5 to Antigravity, but only for paid Pro and Ultra subscribers.
- Free and trial users will lose access to older Claude models on November 2, 2026.
- Even some Pro users on trials may not get the new models, so check your plan.
Why It Matters
If you code with Antigravity, you may need to pay more to keep using top AI helpers.