Nano Banana 2 Lite is 1K only: send 2K and 4K to NB2

Nano Banana 2 Lite is 1K only on Google's API, so a 2K or 4K request needs Nano Banana 2 or Nano Banana Pro. Google prices Nano Banana 2 from $0.045 for a 0.5K image to $0.151 for a 4K image. Lite is not in the Sume catalog; google/nano-banana-2 is.

Resolution by model

Resolution lists come from Google's image-generation page, and prices from its pricing page.

On Sume

Sume's resolution field accepts 512, 1K, 2K and 4K as a normalized tier, but each model accepts only the values its catalog row lists. Read supported_parameters first. Slow settings such as 4K can exceed the 30-second wait and return a 202 job, so branch on the status code.

curl -X POST "https://api.sume.com/v1/images" \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "google/nano-banana-2", "prompt": "a lighthouse at dawn", "resolution": "2K", "aspect_ratio": "16:9"}'

Price check

The Sume repo's static list rate for google/nano-banana-2 is $0.08, billed at list x 1.25 = $0.10. The Sume docs do not say that rate varies by resolution, so read the live pricing array before a large 4K run.