Image
Nano Banana Pro vs. GPT Image 2.6 for finished artwork
Evaluate diagram structure and reference edits as separate jobs.
Specify the infographic grid
Lock the number of blocks, order, labels, and colors. Check that repeated elements stay consistent and that no labels are invented.
Grade the reference edit separately
Use the same source image and target change, and compare which original details survive. Keep generation and edit quotes separate.
Test prompt
Create a four-step diagram labeled only Upload, Check, Generate, and Deliver. Use matching rounded rectangles and a gray, white, and cobalt palette.