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BytePlusBytePlusBytePlus ModelArk for ComfyUI

2.5 Model Updates

Template
2.5 Model Updates, in the ComfyUI template browser under BytePlus
Workflow file
2.5 Model Updates.json
BytePlus nodes
Seedream 4.5 & 5.0, Seedance 2.5 Text to Video, BytePlus LLM
Keys needed
ModelArk API key
Also uses
Preview as Text, Save Image, Save Video (built into ComfyUI)

What it makes

Section titled “What it makes”

Three separate results from one click: a 2K poster image, a 30 second video with sound, and a text storyboard. Each branch uses one of the newest models, so the template also shows whether your key can use all of them. The three branches do not depend on each other, so you can delete the ones you do not need.

The workflow

Section titled “The workflow”
The 2.5 Model Updates template: three rows, each with a BytePlus node feeding a Save or Preview node
Three independent rows inside one group titled 2.5 Model Updates.
  1. Seedream 4.5 & 5.0 is set to seedream 5.0 pro at (2K) 2048x2048 (1:1). The prompt asks for a minimalist poster for a spring tea festival with the title “Spring Tea Festival”. No reference image is connected. Save Image keeps the result.
  2. Seedance 2.5 Text to Video is set to the Seedance 2.5 model at 720p, 16:9, duration 30 and generate_audio on. The prompt describes a lighthouse keeper climbing the stairs at dusk, lighting the lamp and looking out over a stormy sea. Save Video keeps the clip.
  3. BytePlus LLM runs Seed 2.1 Turbo and is asked for a three-shot storyboard of a 15 second smart watch video, with the camera move, the action and one line of voice-over per shot. Preview as Text shows the answer.

Run it

Section titled “Run it”
  1. Add your ModelArk API key in Settings → BytePlus if you have not yet (API keys). One key covers all three nodes.
  2. Open the template browser and choose 2.5 Model Updates under BytePlus.
  3. Press Run. The three results appear in Save Image, Save Video and Preview as Text as each node finishes.

Settings worth changing

Section titled “Settings worth changing”
  • Poster prompt: replace the tea festival text with your own. Put the exact title you want in quotes.
  • duration on the video node: the template asks for 30 seconds. Lower it for a shorter first try.
  • resolution on the video node: 720p is the default here; the Seedance 2.5 model also offers 480p and 1080p.
  • Storyboard prompt: change the product or the number of shots. The model is Seed 2.1 Turbo; the same node lists other Seed, DeepSeek and GLM models.
  • Unused branches: delete the Save or Preview node at the end of a row to skip that row. A BytePlus node whose output nothing uses does not run, so it does not bill.

Example result

Section titled “Example result”
The tea festival poster, three frames of the lighthouse video and the smart watch storyboard text
Example result: the poster, the video and the storyboard.
The Seedance 2.5 lighthouse video from this example.

Time and cost

Section titled “Time and cost”

Each node bills once per run: one image from Seedream, one video from Seedance and one request from the LLM node. The seed controls are set to randomize, so every run makes new results and bills again. Set a control to fixed and ComfyUI reuses the cached result of an unchanged node without billing.

Section titled “Related”