Which Google image model for product photos after Oct 6?

For most product photos, start with Nano Banana 2.1. It is $0.0504 per 2K image on Google's Standard tier, takes up to 10 object references, lists legible text rendering and goes to 4K. Choose Pro when you need style references or a premium look worth $0.134, and Lite only for 1K drafts. Sume lists 2.1 and Pro, but not Lite.

The table

Prices are Google list prices for one output image on the paid Standard tier. Capabilities come from Google's image guide.

Cost of 100 product images at 2K

At 2K, 100 images cost $5.04 on Nano Banana 2.1 and $13.40 on Pro, from Google's prices. Lite cannot make 2K. The $8.36 gap is the price of Pro's style references and whatever look-and-feel difference you see in a side-by-side test.

What I would not claim

• That Pro looks better than 2.1 on your product. Google does not publish a ranking, so test five of your own prompts on both.
• That Lite is as good at text. Google says only that it is the fastest and cheapest, tuned for speed and scale.

Via Sume

Use google/nano-banana-2.1 or google/nano-banana-pro in Sume's Image API. Sume sets its own prices, so read usage.cost on a test image and GET /v1/images/models/{id}/endpoints before you quote a client.