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Google’s ‘Nano Banana’ (Gemini 2.5 Flash Image) Delivers Faster, Consistent AI Image Editing

Early tests show rapid, consistent edits with watermark detection still limited.

Overview

  • Google’s upgraded image editor is rolling out across the Gemini app and developer channels, with reviewers publishing hands-on results this week.
  • Key capabilities include strong character consistency across edits, multi-image fusion, and multi-turn workflows that preserve subjects over iterative changes.
  • Independent tests report edits in roughly 15–30 seconds per request, making routine changes far quicker than manual tools.
  • Notable gaps remain, including the app declining precise aspect‑ratio crops and occasional errors when combining faces from different photos.
  • Google attaches a visible AI mark and an invisible SynthID tag to outputs, yet the detector is not broadly accessible and the visible mark can be cropped, prompting deepfake concerns.