Zhenzhen Nano Banana Pro Edit Fal

Nano Banana Pro is Google's flagship image model - 4K native output, "thinking" before it generates, up to fourteen reference images - and Comfly_nano_banana_pro_fal ("Zhenzhen Nano Banana Pro Edit Fal") is the FAL-route node for it. It's structurally identical to the Banana 2 FAL node: same eight reference slots, same num_images batching, same 1K/2K/4K resolution switch, same FAL polling machinery. The difference is which flagship you're calling and how expensive its output is.

It's a FAL-class node in the T8mars/Comfyui-zhenzhen pack, the "Comfly" API-wrapper family that calls the author's paid reseller service. Key goes into api_key directly; billing is pre-deduct and settles after. Submit → poll → download, results as IMAGE.

The inputs that matter

• prompt - required. Pro's "thinking" behavior rewards detailed instructions; it reasons before generating.
• image1–image8 - reference images for edit jobs.
• num_images - 1 to 4 per call.
• aspect_ratio - auto plus the standard set.
• resolution - 1K (default), 2K, 4K.
• output_format - png/jpeg/webp.
• safety_tolerance - 1 to 6; default 4.
• system_prompt - an optional instruction to steer the model's persona/style.
• image_way - image_url or base64 for references.
• seed - real FAL seed (0–65535, 0 = random).
• poll_interval / max_poll_attempts - defaults 3s × 1200 = a one-hour timeout ceiling.

Outputs

• images - the result(s) as IMAGE.
• image_urls - hosted URLs as a string.
• response - the raw payload.

Installing it

cd ComfyUI/custom_nodes
git clone https://github.com/T8mars/Comfyui-zhenzhen
# restart ComfyUI

Or ComfyUI Manager → "Comfyui-zhenzhen", then a key from the author's site into api_key.

The honest part

The one thing that actually distinguishes this node from its siblings is the 4K download problem. The README is upfront about it: Pro 4K output is a big file, and cross-border transfers fail often enough that the author added an OSS (object storage) setting on the website - you edit your token, scroll to the bottom, and pick a CN or US OSS region so the result has a download route that works for you. If your downloads keep dying mid-transfer, that's the fix, not reinstalling anything. Same for the usual suspects: white 4K images and 429/500s are Google load problems (premium group on the site is the real cure), and every prompt and reference you send goes through a reseller's server. Great node; just budget for its file sizes.