Nano Banana 2.1 API

Nano Banana 2.1, Google's newest Nano Banana image model, via WaveSpeed — better visual design, subject consistency and text, and edits from a reference image. 4¢ an image (5¢ for an edit) on Varosity Credits.

$0.04/img on Varosity credits.

Use Nano Banana 2.1 with your agent Try it in the browser

no wavespeedaccount needed · provider's list price, no markup · failed renders never billed

Best for

newest Nano Banana: design, subject consistency, prompt adherence
legible in-image text
edits from a reference image

Trade-offs

1K via Varosity

How to get the best result

The newest Nano Banana: polished visual design, consistent subjects and readable in-image text, and edits that keep the subject from a reference image. Pick instead: gemini-3-pro-image (Nano Banana Pro) for multilingual text and complex layouts; flux-1-schnell for 1¢ drafts; nano-banana for the cheapest identity-preserving edits.

Prompting

Describe the subject, the setting, the composition and the style in plain sentences.
Put any text that must appear in quotes, and say where it goes.
For an edit, pass referenceImageUrl and describe only the change ('make it night, keep the logo').

Settings on Varosity

Always 1K (4¢ an image; 5¢ as an edit with referenceImageUrl).
aspectRatio 1:1, 16:9, 9:16, 4:5 or 21:9; an edit follows the reference image's shape.

Avoid

Expecting 2K or 4K output through Varosity.
Long paragraphs of small text in the image.

Example prompt

A minimalist poster of a lighthouse at dusk, warm beam across a calm sea, the words "Open Late" in clean white type at the bottom.

From wavespeed.ai, wavespeed.ai, checked against what Varosity sends.

Call it from your code

One Varosity key works for every model.

curl -X POST https://varosity.ai/api/v1/images \
  -H "Authorization: Bearer $VAROSITY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "studio product shot of a matte black water bottle, soft rim light",
    "modelId": "nano-banana-2.1",
    "aspectRatio": "1:1"
  }'

Or ask your agent

Connect Claude, Cursor, or any MCP client to https://varosity.ai/api/mcp with your key, then say:

"Use Varosity with nano-banana-2.1 to generate an image of …"

Agent setup guide