Av007-custom_fns/CONFLUENCE.md

Credit Display — ComfyUI Plugin

What it does: Shows how much a video generation will cost before you click Run.

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Why use it?

When you run AI video generation through ComfyUI (Seedance, Kling, Veo, Sora, etc.), each generation spends Comfy Credits from your account. The cost changes depending on the model, resolution, and duration you pick — and it's easy to accidentally run something expensive.

Credit Display shows the estimated cost as soon as you change any setting, so there are no surprises on your bill.

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What it looks like on the canvas

┌─────────────────────────────────────────────┐
│  Credit Display                             │
│                                             │
│  Model      Seedance 2.0 Fast (i2v/t2v) ▾  │
│  Resolution 480p ▾    Aspect 16:9 ▾         │
│  Duration   5.0 s     Runs  1               │
└─────────────────────────────────────────────┘
           │ cost_text
           ▼
┌─────────────────────────────────────────────────────────────────┐
│  Show Text                                                      │
│                                                                 │
│  Model     : Seedance 2.0 Fast — image/text→video (ByteDance)  │
│  Settings  : 480p 16:9  854×480  5.0s  ×1 run(s)              │
│  Per run   : 56.78 cr  ($0.27)                                  │
│  Total     : 56.78 cr  ($0.27)                                  │
│  Rate      : 211 cr = $1 USD                                    │
└─────────────────────────────────────────────────────────────────┘

The text updates instantly when you change any dropdown — no need to run the workflow first.

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How to read the output

Line	Meaning
Model	Which AI model and vendor will be charged
Settings	Resolution, aspect ratio, pixel size, duration, number of runs
Per run	Cost of a single generation in credits and USD
Total	Per run × number of runs
Rate	The official conversion rate (211 Comfy Credits = $1 USD)

Comfy Credits are the in-app currency. You buy them in Settings → Credits inside ComfyUI. They never expire if you top up (top-up credits last 1 year).

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Supported models

Vendor	Models
ByteDance	Seedance 2.0, Seedance 2.0 Fast, Seedance 1.5 Pro, Seedance 1.0 Pro/Lite, Seedream 4.5
Kuaishou	Kling v1.6, v2.1, v2.6 (Pro / Standard / Master)
Google	Veo 2, Veo 3, Veo 3 Fast (with and without audio)
OpenAI	Sora 2, Sora 2 Pro
Pika	Pika 2.2 (5s and 10s, 720p and 1080p)
Minimax	Hailuo-02
Luma	Ray 2, Ray Flash 2
Moonvalley	i2v 5s and 10s
BFL	Flux Dev, Pro 1.1, Pro 1.1 Ultra, Kontext Pro/Max
ElevenLabs	Text-to-Speech

Prices are sourced from the official ComfyUI pricing page: https://docs.comfy.org/tutorials/partner-nodes/pricing

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How to install

Ask your server admin to run this once on the ComfyUI server, then restart ComfyUI.

cd ComfyUI/custom_nodes
git clone https://github.com/Av007/custom_fns.git custom_fns

To update to the latest prices later:

cd ComfyUI/custom_nodes/custom_fns
git pull

Then restart ComfyUI.

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How to add it to a workflow

1. Right-click on the canvas → Add Node → utils/cost → Credit Display
2. Set Model, Resolution, Aspect Ratio, Duration, and Runs to match your generation node
3. Right-click on the canvas → Add Node → utils → Show Text (requires ComfyUI Custom Scripts)
4. Connect cost_text output of Credit Display → text input of Show Text
5. The cost appears immediately and updates as you change settings

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Important notes

• This is an estimate. Actual charges may vary slightly, especially for Seedance 1.x models (their exact token formula is not publicly documented).
• Actual spend is always visible after generation in Settings → Credits → Credit History inside ComfyUI.
• The plugin does not make any API calls. It calculates everything locally using the published pricing tables.
• The plugin has no external dependencies — it runs on standard Python and works on any operating system.

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Prices changed — what to do?

If ComfyUI updates its pricing, the numbers can be corrected without a developer:

1. Open the file ComfyUI/custom_nodes/custom_fns/custom_nodes/credit_tracker/nodes.py
2. Find the model name in the PRICING section near the top
3. Update the number next to credits_per_run, credits_per_sec, or credits_per_k_tokens
4. Restart ComfyUI

The same change also needs to be made in custom_nodes/credit_tracker/js/credit_display.js for the live display to match.

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Plugin source: https://github.com/Av007/custom_fns Pricing reference: https://docs.comfy.org/tutorials/partner-nodes/pricing