Seedream 5.0 Pro vs Gemini 3.1 Flash Image (Nano Banana 2)

A side-by-side comparison of Seedream 5.0 Pro and Gemini 3.1 Flash Image (Nano Banana 2): input/output pricing, capabilities and available endpoints, served live from 聚合 AI 中转站. Both are reachable with the same API key.

Pricing comparison

ItemSeedream 5.0 ProGemini 3.1 Flash Image (Nano Banana 2)
Input (per 1M tokens)—$0.375
Output (per 1M tokens)—$2.25

Capability comparison

ItemSeedream 5.0 ProGemini 3.1 Flash Image (Nano Banana 2)
image_to_imageYes—
multi_referenceYes—

Which should you pick

What can Seedream 5.0 Pro do that Gemini 3.1 Flash Image (Nano Banana 2) cannot?

only Seedream 5.0 Pro supports image_to_image, multi_reference.

Can I switch between Seedream 5.0 Pro and Gemini 3.1 Flash Image (Nano Banana 2) without changing my code?

Yes. Both are available on 聚合 AI 中转站 through one API key and the same OpenAI-compatible endpoint — switching means changing the model field from "dola-seedream-5-0-pro-260628" to "gemini-3.1-flash-image-preview", nothing else.

Both are available on 聚合 AI 中转站 under one API key — switching between them means changing the model field and nothing else, so you can use each where it fits rather than picking one.

Seedream 5.0 Pro · Gemini 3.1 Flash Image (Nano Banana 2) · All models