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ByteDanceImage Generation/v1/media/queue

Seedream 4.5

Seedream 4.5 image generation from $0.08 — 18 aspect ratios and reference-image editing through one API key.

ByteDance's Seedream 4.5 image model. Strong photoreal and illustrated output with the widest aspect-ratio range on the platform — 18 options from 1:2 to 21:9 — plus reference-image editing.

No credit card required. Takes 30 seconds.

2,400+

Developers

1.2M+

API calls served

100+

Endpoints

$0.01

Per call

Yep, that's it.

Try it live

Enter a prompt and generate an image with Seedream 4.5.

POST/v1/media/queue

Drop image or click to upload

For image-to-image editing

Response
Hit "Send Request" to see the response

Pricing

Per-image: from $0.08/image

Endpoint

/v1/media/queue

Strengths

18 aspect ratios

From 1:2 and 9:21 to 20:9, Seedream 4.5 covers phone-native, banner, and ultra-wide crops that most image models don't expose.

Photoreal and illustrated

Handles both photographic realism and stylized illustration well, so one model can cover a mixed content pipeline.

Reference-image editing

Accepts an uploaded image to edit, restyle, or extend while preserving the original subject.

Low cost per image

At around $0.08 an image it sits at the affordable end of flagship-class generators, which suits high-volume catalog and social work.

Quick start

Copy this snippet and start making calls with Seedream 4.5.

// Step 1: Submit job
const res = await fetch('https://api.yepapi.com/v1/media/queue', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "model": "bytedance-seed/seedream-4.5",
    "prompt": "A night market alley in the rain — neon reflections pooling on wet cobblestones, steam rising from a noodle cart, a lone cyclist blurred in motion, cinematic 35mm look",
    "options": {
      "aspectRatio": "1:1"
    }
  }),
});
const { data } = await res.json();
const jobId = data.jobId;

// Step 2: Poll for result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${jobId}`, {
  headers: { 'x-api-key': 'YOUR_API_KEY' },
});
const { data: job } = await status.json();
// job.status: "pending" | "processing" | "completed" | "failed"
// job.result: { text?, image?, audio?, video? }

Why use Seedream 4.5 through YepAPI?

One API key for all models — no separate accounts
No monthly minimums — pay per call
Switch models with one line of code
Simple REST API — works from any language
Unified billing across all providers
No rate limits for most use cases

Seedream 4.5 API — ByteDance image generation from $0.08

Seedream 4.5 is ByteDance's current text-to-image model, strong on both photorealism and illustration and unusually flexible on framing: 18 aspect ratios spanning 1:2 portrait through 21:9 cinematic, plus an auto mode.

Through YepAPI you call Seedream 4.5 on `/v1/media/queue` with one key at roughly $0.08 per image, and can pass a reference image for editing instead of generating from scratch.

Start generating in 30 seconds

$5 free credit on signup. No credit card required. Pay per call.

What developers say

Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.

Marcus T.

SEO Platform Founder

One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.

Priya S.

Full-Stack Developer

The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.

Jake R.

Indie Hacker

Frequently asked questions

ByteDance's Seedream 4.5 image model. Strong photoreal and illustrated output with the widest aspect-ratio range on the platform — 18 options from 1:2 to 21:9 — plus reference-image editing.

Pricing for Seedream 4.5 through YepAPI is based on usage. No monthly minimums — you only pay for what you use.

Sign up for a free API key, then send requests to the /v1/media/queue endpoint.

Ready to use Seedream 4.5?

$5 free credit on signup. No credit card required. Pay per call.

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