ByteDance logoAI provider

ByteDance's Seedance and Seedream models, now on TokenRex

TokenRex runs two models from ByteDance Seed, ByteDance's AI research team: Seedance 2.5 for video with sound and Seedream 5 Pro for images and reference-guided edits. Use the same TokenRex key and wallet as every other model, with each model's own controls.

Models available
2
Model families
2
Types
2
Sign up — ₹100 welcome credit See all ByteDance models
ByteDance logo and wordmark in black on a white background
ByteDance logo. Photo: ByteDance, Public domain, via Wikimedia Commons.

ByteDance flagship models

The ByteDance models most people start with. Prices are live and update automatically.

ByteDance logoVideo generation

Seedance 2.5

ByteDance video with synchronized audio — 480p/720p, 4–30s or automatic length, first/last frames and image, video and audio references

$0.072 per second (480p)

seedance-2.5
View model details
ByteDance logoImage generation

Seedream 5 Pro

ByteDance image generation and reference-guided editing with accurate text — 1K, 2K or custom size, up to 10 references, one JPEG

$0.0315 per image

seedream-5-pro
View model details

What you can do with ByteDance on TokenRex

Video with sound

Seedance 2.5 makes 4–30 second videos at 480p or 720p, with optional generated audio, in seven aspect ratios or an adaptive shape.

First and last frames

Start a video from an image, or set both the first and the last frame and let Seedance fill in the motion.

Ordered references

Guide Seedance with up to 30 reference images, 10 reference videos and 10 reference audio clips, in the order you send them.

Images and edits

Seedream 5 Pro creates one JPEG per request at 1K, 2K or a custom size, and edits using up to 10 reference images.

Honest controls

Unknown or unsupported fields are refused instead of ignored, so you always know which controls were used.

Jobs that survive refresh

Video jobs keep running if your app or browser closes. Poll the job ID and download the MP4 when it is ready.

Popular ways people use it

  • Product clips and social videos with sound
  • Animating a product photo from its first frame
  • Story shots that follow a reference style or character
  • Editorial posters with exact headline text
  • Editing a design while keeping its layout
  • Mood boards turned into consistent images

How it works

TokenRex sits between your app and ByteDance. You send a normal API request with your TokenRex key; we check the key and your balance, pass the request to ByteDance, stream the answer back, and bill the exact usage ByteDance reports.

  1. Your app

    SDK, agent or BYOK tool

  2. TokenRex

    Checks key and balance

  3. ByteDance

    Runs the ByteDance model

  4. Answer + bill

    Streamed back, billed per use

  1. 1

    Create a free account

    Sign up with email or Google. New accounts can claim free starter credit.

  2. 2

    Create an API key

    Open API keys in your dashboard and create a key. Keep it private.

  3. 3

    Point your app at TokenRex

    Set the base URL to https://tokenrex.ai/api/public/v1 in your SDK or BYOK app and paste your key.

  4. 4

    Choose a model ID

    Copy the exact model ID from the list on this page, for example from a flagship card.

  5. 5

    Pay only for what you use

    Each request is billed at the live model price and deducted from your prepaid wallet.

cURL · Create a Seedance 2.5 video

Terminal commands
curl https://tokenrex.ai/api/public/v1/v1/videos \
  -H "Authorization: Bearer YOUR_TOKENREX_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "seedance-2.5",
  "input": {
    "prompt": "A ceramic teacup on a table. Slow cinematic push-in, gentle steam.",
    "duration": 4,
    "resolution": "480p",
    "aspect_ratio": "16:9",
    "generate_audio": true,
    "fps": 24,
    "output_format": "mp4",
    "watermark": false
  },
  "stream": false
}'

Endpoints for ByteDance models

  • POST /v1/videosStart a Seedance 2.5 video job
  • GET /v1/videos/{id}Check job status and progress
  • GET /v1/videos/{id}/contentDownload the finished MP4
  • POST /v1/images/generationsSeedream 5 Pro images and reference-guided edits
  • POST /v1/images/editsSeedream 5 Pro edits with uploaded images

All ByteDance models on TokenRex

2 models in 2 families. Open a model to see every version, cache rates and limits.

Compare models

Image generation

Price

Video generation

Price

About ByteDance

Founded
2012
Founders
Zhang Yiming and Liang Rubo
Headquarters
Beijing, China
CEO
Liang Rubo
AI research team
ByteDance Seed, set up in 2023
Models on TokenRex
Seedance 2.5, Seedream 5 Pro

  1. 16 Apr 2025

    Seedream 3.0 technical report: bilingual text-to-image with native 2K output. Source

  2. 11 Jun 2025

    Seedance 1.0: text- and image-to-video with multi-shot storytelling. Source

  3. 9 Sep 2025

    Seedream 4.0: one model for image generation and editing. Source

  4. 16 Dec 2025

    Seedance 1.5 Pro: joint audio and video generation. Source

  5. 12 Feb 2026

    Seedance 2.0: text, image, audio and video inputs in one model. Source

  6. 8 Jul 2026

    Seedream 5.0 Pro: design-aware generation, precise editing and multilingual text. Source

  7. 31 Jul 2026

    Seedance 2.5: up to 30-second videos with sound, extensions and multimodal references. Source

Sources: ByteDance Seed · Seedance 2.5 product page · Seedream 5.0 Pro product page · ByteDance company profile

ByteDance pricing

Market list prices in USD before the TokenRex discount; your wallet is charged in its own currency using TokenRex's standard conversion. A hold is placed before the job starts, settled once when it finishes, and released if it fails. No cache discounts apply. The price on each model card above already includes the TokenRex discount.

ByteDance logo

Seedance 2.5

Market list price
  • Generation, 480p$0.1028 per second
  • Generation, 720p$0.2312 per second
  • With reference videos, 480p$0.4304 per second
  • With reference videos, 720p$0.9676 per second
  • Reference images or audioNo extra charge

cost = seconds × rate. Requests with reference videos use the reference-video rate instead of (not on top of) the generation rate. Auto length holds 30 seconds and settles on the real length reported.

ByteDance logo

Seedream 5 Pro

Market list price
  • Output image$0.045 per image
  • Each reference image$0.03 per image

cost = $0.045 + $0.03 × reference images (text only $0.045, one reference $0.075, ten $0.345). Same price for 1K and 2K; no token, size or watermark fees.

Benchmarks

Published results for these exact model versions from independent leaderboards. They are not TokenRex measurements.

Docs and guides

API Docs

Every control, copyable requests, polling, downloads and error handling.

ByteDance logoSeedance 2.5 guide

Pricing, controls, limits and request examples for this model.

ByteDance logoSeedream 5 Pro guide

Pricing, controls, limits and request examples for this model.

AI agent guide

One Markdown file your coding agent can read to set these models up.

Pricing and billing

Prepaid wallet

Top up once and each job is paid from your balance. No subscription and no monthly minimum.

Hold, then settle once

A hold is placed before the job starts and settled once when it finishes. Failed jobs release the hold.

Free polling and downloads

Checking a job's status and downloading the finished file never charge you again.

No token or cache fees

These models are priced per second, image or processing unit, with no token or cache charges.

ByteDance on TokenRex — common questions

Who makes Seedance and Seedream?

ByteDance Seed, the AI research team ByteDance set up in 2023. ByteDance itself was founded in 2012.

Is Seedream 5 Pro the same as Seedream 5.0 Pro?

Yes. ByteDance names it Seedream 5.0 Pro; TokenRex uses the short ID seedream-5-pro.

Does Seedance 2.5 support 1080p?

No. Through TokenRex, Seedance 2.5 renders at 480p or 720p only.

How is a Seedance video charged?

Per second of video at the rate for its resolution. Requests with reference videos use the reference-video rate instead of the normal rate, not on top of it. Reference images and audio add nothing.

How is a Seedream image charged?

A fixed price per output image plus a fixed price for each reference image you send. Size and watermark do not change the price.

Does use_virtual_avatar get around real-person rules?

No. It is a provider option and does not bypass ByteDance's real-person or deepfake restrictions.

Other AI providers on TokenRex

OpenAI logoOpenAI modelsAnthropic logoAnthropic modelsGoogle logoGoogle modelsTypesafe logoTypeSafe AI modelsTopaz Labs logoTopaz Labs models

ByteDance and its logo are trademarks of their owner and are shown only to identify the models available. TokenRex is an independent service by Asirex Labs and is not affiliated with or endorsed by ByteDance.