Question 1

Can I test GPT Image 2 API for free?

Accepted Answer

Yes. The YingTu homepage supports free Nano Banana and GPT Image 2 API testing without signup. For production API access, create a pay-per-request token at laozhang.ai.

Question 2

What's the difference between Nano Banana 2 and Nano Banana Pro?

Accepted Answer

The homepage currently shows 5 models: Nano Banana ($0.02/image, 1K), Nano Banana Pro ($0.09/image, 1K/2K/4K), Nano Banana 2 ($0.055/image, 1K/2K/4K), GPT Image 2 ($0.03/image), and gpt-image-2-vip ($0.03/image with size control).

Question 3

How much is Nano Banana API now?

Accepted Answer

The current homepage pricing is $0.02/image for Nano Banana, $0.09/image for Nano Banana Pro, $0.055/image for Nano Banana 2, $0.03/image for GPT Image 2, and $0.03/image for gpt-image-2-vip. Choose pay-per-request when creating a token.

Prompt Engineering

Nano Banana Pro Best Prompts: 50+ Copy-Paste Templates & Complete Guide (2025)