Velokey

Doubao Seedream 4.5

字节跳动Image0.04 Credits / image≈$0.04Available
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Seedream 4.5 focuses on crisp text rendering, visual consistency, and stable product-style compositions for commerce workflows.

High-quality visualsAccurate text & layoutReference image editingMulti-resolution output

Use cases

seedream-4.5 prototyping · seedream-4.5 production workflows

Input

Text or image

Output

Image

Billing

Per image

Model Type:
0/14

Sign up to get $0.5 in free credits — about 20 free images

Generate an image

Enter a prompt and click Generate

Seedream 4.5 examples

👆 Click on any example above to view full details, prompt, and parameters

Pricing details

Transparent usage-based pricing with no hidden fees.

Detailed Pricing

Usage-based pricing breakdown

SpecPrice
doubao-seedream-4-5/image0.04 Credits≈$0.04

Billing Rules

  • Output price varies by model, resolution, quality, duration, or token usage.
  • Uploaded reference files may be charged separately when supported.
  • Add-on capabilities such as web search or image search may be billed per request.
  • Token-based models are billed by input and output tokens.
  • If the primary route is unavailable, Velokey may automatically switch to a stable fallback route when possible.
  • Usage is pay-as-you-go with transparent credit deduction.

* Final cost depends on the generated result.

Related models

Explore other models in the same family.

Affordable Seedream 4.5 API

Access ByteDance's Seedream 4.5 on Velokey — a unified text-to-image, image-to-image, and editing model with up to 4K output, precise text-guided editing, multi-image reference fusion, and fast generation, through one endpoint and below-list pricing.

Meet Seedream 4.5 and its API access

Seedream 4.5 is a ByteDance Seed image model in the Seedream 4.x line — the iteration between Seedream 4.0 and 5.0 — that unifies text-to-image, image-to-image, and image editing in a single architecture. It produces high-resolution output up to 4K (2K-4K range) with an adaptive aspect ratio that adjusts the canvas to semantic needs or custom dimensions, and supports precise text-guided editing that can add, delete, modify, or replace elements while keeping the rest of the image intact. Velokey provides an affordable, easy-to-integrate Seedream 4.5 API: a unified endpoint, one API key, and below-list pricing for content production, commerce visuals, and creative automation.

Precise text-guided editing

Add, delete, modify, or replace elements with simple text instructions while keeping image integrity — change one part of a scene cleanly without disturbing the rest, ideal for product retouching and iterative design.

View Documentation →
Precise text-guided editing

Multi-image reference & feature fusion

Extract key information from reference images and fuse features across many references for coherent, multi-image output — fit for storyboards, series, and consistent character or product sets.

View Documentation →
Multi-image reference & feature fusion

Advanced text rendering up to 4K

Renders crisp text, formulas, tables, chemical structures, and statistical charts, and outputs ultra-high-definition images up to 4K with an adaptive aspect ratio that fits the content.

View Documentation →
Advanced text rendering up to 4K

Unified, fast generation & editing

A single architecture handles text-to-image, image-to-image, and editing with native visual-signal control (sketch, depth, mask) and no extra ControlNet, on a distilled DiT optimized for low-step, low-latency sampling.

View Documentation →
Unified, fast generation & editing

How to deploy the Seedream 4.5 API on Velokey

Get started with just a few steps.

1

Sign up and get an API Key

Sign in to the Velokey console to generate an API Key that authenticates every generation and editing request sent to Seedream 4.5.

2

Configure the request

Set model to seedream-4-5, write your prompt, and add reference images, a target resolution up to 4K, or an aspect ratio for image-to-image and editing tasks.

3

Generate and edit

Send requests to Velokey's unified endpoint to generate or edit images, with credits and usage managed in one console.

Real-world use cases for Seedream 4.5

From commerce visuals to creative production, covering many image workflows.

Product & commerce visuals

Generate and edit clean, consistent product imagery at up to 4K with adaptive aspect ratios for listings, banners, and campaigns.

Precise photo editing

Add, remove, modify, or replace elements with text instructions while keeping the rest of the image intact, for fast iterative retouching.

Storyboards & series

Use multi-image reference and feature fusion for coherent storyboards, comic continuation, and consistent character or product series.

Charts, tables & technical visuals

Render crisp text, formulas, tables, chemical structures, and statistical charts for educational and technical content.

Controlled generation

Guide composition with native sketch, depth, and mask signals, plus in-context reasoning for physics and temporal constraints, without extra ControlNet.

Creative automation pipelines

Wire one fast, unified endpoint into batch asset generation and editing pipelines with consistent billing across teams.

Why choose Velokey for Seedream 4.5

Discount on list price

Call Seedream 4.5 at a lower price on Velokey — pay-as-you-go with no forced subscription, reducing upfront cost.

Unified API interface

One API Key accesses Seedream 4.5 and other models — no juggling multiple accounts and keys, simplifying integration.

Generation and editing in one endpoint

Text-to-image, image-to-image, and editing run through a single unified endpoint, so you reuse the same integration pattern everywhere.

Stable and highly available

Automatic failover and stable fallback routes maintain availability when the primary route is down, keeping production reliable.

API Reference

Complete API call examples and parameter descriptions

Endpoint

https://api.velokey.ai/v1/images/generations

Authentication

Bearer YOUR_API_KEY

Request Example

curl https://api.velokey.ai/v1/images/generations \
  -X POST \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao-seedream-4-5",
    "prompt": "A premium product photo...",
    "size": "1024x1024",
    "quality": "high"
  }'

Response Example

{
  "id": "req_abc123",
  "model": "doubao-seedream-4-5",
  "created": 1234567890,
  "data": { ... }
}

seedream-4.5 API FAQ

What is the seedream-4.5 API?

seedream-4.5 is available through Velokey as a image model. Set model to seedream-4-5 and use the family-specific endpoint.

Which parameters does seedream-4.5 use?

The playground shows the main fields for seedream-4.5, including the model id and the most important generation parameters.

How is seedream-4.5 billed?

Pricing is shown on this page when available, and credits are managed from one Velokey account.

Who should use seedream-4.5?

It fits teams that want to test, compare, and ship AI capabilities through a unified API.

Start building with Doubao Seedream 4.5 today

Use one API key to access low-cost, stable AI models through Velokey.

Get API KeyView Docs