Nano Banana 2One sentence, one picture, $0.06 each.
$0.06
a picture, charged to your account balance only once it has been drawn. A picture that fails costs nothing, and the free pictures of the day are not used.
Google's own Gemini API charges $0.067 for a 1K picture from this model (price list of 14 October 2026). Gemini API pricing
About Nano Banana 2
Nano Banana 2 is a drawing model from Google. It is the quicker of Google's two Nano Banana models, at about half a minute a picture.
On onomeo each picture is charged to your account balance, which comes from top-ups. The pictures you draw are kept under Mine on the Works page.
With an API key it can also be called through the OpenAI-compatible endpoint POST /v1/images/generations, at the same price per picture. See the API documentation.