nano-banana-2 Deep Dive: Google's 4K Image Update, Price Cuts, and What Changed From 2.0 to 2.1
Nano Banana 2.1 (gemini-nano-banana-2.1) replaced the retired Gemini 3.1 Flash Image on October 6, 2026: native 4K output, masked local repairs, multi-turn subject consistency, improved Chinese text rendering, and 1K/2K pricing cut roughly in half. A deep dive into what changed, what the 2.0 benchmarks actually said, and where the line still trails.
2026-07-21阅读时长 9 min