Gemini 2.5 Pro/Flash are no longer selectable in AI Studio; Dec 1 API calls will route to 3.8 Flash/3.5 Flash-Lite respectively, at replacement rates. Google flags breaking changes; migrate before then.

Google’s November 2, 2026 release-note entries mapping Gemini 2.5 Pro to 3.8 Flash and 2.5 Flash to 3.5 Flash-Lite from December 1, with replacement billing and API migration warnings.

Published 2 Nov 2026 · 19:35 UTC

Google Gemini API release notes ↗ · Source dated 2 Nov 2026

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