Nano Banana is finally at 2.1! Direct 4K output, Chinese language progress is very obvious.

What happened: Google released Nano Banana 2.1, an upgraded image generation model with 4K output, mask editing, subject consistency, and improved Chinese text rendering. Key numbers: Arena reports an average gain of about 61.7 points across text to image, multi image editing, and single image editing versus Nano Banana 2. Why it matters: Users report faster generation but weaker overall finish than GPT Image 2.5, plus a watermark bug that degrades quality across repeated edits. Lower API pricing and better Chinese rendering may appeal to designers.

Google released Nano Banana 2.1, an upgraded image generation model with 4K output, mask editing, subject consistency, and improved Chinese text rendering.

Users report faster generation but weaker overall finish than GPT Image 2.5, plus a watermark bug that degrades quality across repeated edits. Lower API pricing and better Chinese rendering may appeal to designers.