Google may be preparing a small update to its Nano Banana image model. According to TestingCatalog, the Google Flow web build now references "Nano Banana 2.1," replacing an earlier "Nano Banana 2.5 Flash" label.
GOOGLE 🔥: Nano Banana 2.5 Flash reference has been changed to Nano Banana 2.1 on Google Flow.
— 🚨 AI News | TestingCatalog (@testingcatalog) September 27, 2026
A minor bump? 👀
* Not available yet https://t.co/PHVqHl84Mg pic.twitter.com/cdKtfUEJ3G
The smaller version bump hints at an iterative upgrade over Nano Banana 2, which launched in February. Google hasn't announced anything, and there's no timeline yet.
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