Concurrent Submit | zhenzhen-seedance2-low-price

Seedance 2.0, ByteDance's video model, on the domestic discount site - the node that started the whole "low-price" family back in July 2026. It's the most configurable Seedance 2.0 wrapper in the pack: three modes, three tiers, two regions, up to 4K output, and both start/end-frame and multimodal reference inputs.

The headline structure: mode (text_to_video / image_to_video / multimodal_video), tier (mini / fast / standard - mini is the budget lane at roughly half the standard price, per the changelog), and region (domestic / global). Together those three dropdowns pick your price point, your quality bar, and your routing. native4k and native1080p resolution options are where the "电影级" (cinematic) claims come from - and where the bill balloons.

Like every node in the low-price family it takes an api_config from the Comfly Seedance2 Low Price Settings node (Comfly_seedance2_low_price_settings, which holds base_url + api_key) instead of a bare key field. It's a video node: shared video pool (10 workers), COMFLY_VIDEO_FUTURE output, collected by Concurrent Collect Videos (ComflyConcurrent_Video_Await) into video_1…video_10.

The inputs

• prompt, seconds (-1 or 4–15), resolution (480p→4k, native1080p, native4k), ratio - the core generation set.
• first_image / last_image - the start and end frames for that classic interpolation look. last_image is the killer feature people buy Seedance 2.0 for.
• image1…image9, video1…video3, audio1…audio3 - multimodal references for the multimodal_video mode.
• generate_audio - on by default (synchronized sound); return_last_frame - off.
• seed - -1 (random) to 2147483647.

Install

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

Or ComfyUI Manager → search Comfyui-zhenzhen → restart, then build api_config with the settings node and your domestic-site token (api.seedance.nz).

Gotchas

• Tier = budget, and mini is genuinely cheaper. The changelog puts mini at ~half the token price of standard at 720p. For drafts and tests, mini is the right default.
• Reference video seconds are billed. Multimodal mode counts your reference clips toward the total; the README has said this since day one.
• Region matters outside China. domestic is optimized for the mainland site; if you're elsewhere, global plus the overseas base_url is the reliable combo. The standing pack advice: connection errors are usually your route to their server, not your node.
• The 1-hour poll ceiling on big jobs. native4k at 15s can run long - if it times out, pull the task from the async-task page before resubmitting.