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GPT Image 2 vs Nano Banana ProAI image generators compared

GPT Image 2 is an image model from OpenAI, and Nano Banana Pro is one from Google. Both run in one studio on Leap, so you can give them the same prompt and keep the one you like.

Both given the same prompt: “A hand-painted shop sign that reads OPEN LATE above a tiny ramen bar on a rainy night, warm light spilling onto wet cobblestones, cinematic 35mm photo”

Side by side

GPT Image 2 vs Nano Banana Pro, spec by spec

SpecGPT Image 2Nano Banana Pro
Best forOpenAI's image model: precise prompt following and text, at medium quality.Gemini 3 Pro Image: Google's best for legible text, infographics and edits of up to 6 references.
Made byOpenAIGoogle
MakesImagesImages
Starts fromWordsWords or up to 6 photos
Resolution–1K, 2K or 4K
Shapes1:1, 3:2, 2:31:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 5:4, 4:5, 21:9
Per runUp to 4 imagesUp to 4 images
PromptUp to 2,000 charactersUp to 4,000 characters
Price per run$0.056276 to $0.068948$0.19074 to $0.3069

Pick the right one

Where they differ

  • GPT Image 2 costs less to start: its cheapest run is $0.056276 (a 3:2 image), against $0.19074 (a 1K image) for Nano Banana Pro.
  • Only Nano Banana Pro can start from up to 6 photos.

Questions

GPT Image 2 vs Nano Banana Pro, answered

Which is cheaper, GPT Image 2 or Nano Banana Pro?
The cheapest GPT Image 2 run is $0.056276 (a 3:2 image), and the cheapest Nano Banana Pro run is $0.19074 (a 1K image). You see the exact price before you press go, and a run that fails costs nothing.
Can I try both for free?
Yes. Sign up with a Gmail, Outlook or work address and you start with $2 of free credit, no card needed. The credit works on every model, so you can give both the same prompt and keep the one you like. After that you pay per run, in dollars, with no subscription.
Do I need two accounts?
No. One Leap account runs GPT Image 2, Nano Banana Pro and every other model, in the studio and through the API, from one balance in dollars.