Google has released Nano Banana 2.1, its latest AI image generation and editing model. The company claims it outperforms previous models with better visual design, sharper mask-based editing, and improved subject consistency. Through Google's developer API, a standard 1K image now costs $0.0336, down from $0.067 for its predecessor, Nano Banana 2. A 4K image costs $0.0756, reduced from $0.151. Google's internal text-to-image tests show Nano Banana 2.1 scoring 1050 ELO points, compared to 990 for Nano Banana 2 and 935 for Nano Banana Pro.