Gemini Nano Banana 2 sketchnotes: what it got right and wrong

I tried Gemini Nano Banana 2 to generate sketchnotes because of its promise of better text. Starting with a simple prompt to make a sketchnote of the US Bill of Rights, the visuals were often excellent — pastels that resembled highlighters, an appropriate hand-drawn font and fitting illustrations — but the text frequently broke: duplicated numbers, repeated parts of an amendment, and a random mix of Roman and Arabic numerals.

Repeated refinements helped. Centering the title, asking for Arabic numerals and insisting on numerical order reduced many problems, but Nano Banana 2 still scrambled the sequence and sometimes doubled numbers. After several tries the Bill of Rights sketchnote finally matched the requested layout, showing that careful prompting can yield a clean result.

Generating sketchnotes from full articles proved more uneven. Pasting text sometimes produced unusable output, while feeding the URL worked better, yet ordering and numbering issues persisted.

United States

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