Seedream 4

by ByteDance

Seedream 4 is ByteDance's image synthesis model that unifies text-to-image generation and image editing in a single architecture. It produces high-definition images up to 4K resolution with fast inference, and can take multiple reference images and return several outputs in one request. The model is notably strong at typography and text rendering, a long-standing weakness for AI image generators, accurately placing headlines, captions, and labels while preserving color scheme, font, and alignment. That makes it well suited to design work such as posters, infographics, and branded materials, and its multi-reference control allows combining products, characters, and backgrounds while keeping visual consistency. The unified generation and editing design enables targeted edits like background swaps, layout adjustments, and clothing changes without disturbing unrelated regions. ByteDance reports Seedream 4 reaching first place in its internal Elo evaluation for single-image editing and high marks for prompt following, aesthetics, and text rendering on its image benchmarks.

Key info

Input
Output
Features
Pricing
$0.03 / generation
Billing
Per generation
  • US residency available
  • Zero data retention on pay-as-you-go
  • No training by default
  • no-KYC deposit available

Pricing

Usage-based pricing, billed per generation, not by token.

VariantPrice
Standard$0.03 / generation

Available routes

Seedream 4 runs on 2 different routes through the qynio gateway. Compare residency, zero retention, and training posture at a glance — full data-handling detail per route below.

ProviderRegionZero data retentionTrainingPrice
MultiNot by defaultNo$0.03 / generation
USZero data retentionNo$0.04 / generation

Uptime and availability

One of Seedream 4's 2 routes is on the monitoring board, so the figure below is that provider's availability rather than the model's.

100%route uptime, last 30 days
Its other routes aren't measured here yet.

Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. .

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. 1 further route is not on the board yet. See uptime for every provider qynio monitors.

Data handling per route

Each route hosting Seedream 4 has its own privacy posture, residency, and no-KYC terms. Postures are maintained by qynio with a last-verification timestamp.

BytePlus Multi-region

Zero data retention is not on by default — abuse monitoring, 180-day retention. No training on customer data. GLOBAL; wallets; deposit available.

Zero data retention
Not by default — abuse monitoring, 180-day retention. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
Abuse monitoring (180-day retention)
Moderation
Not established
Caching
Not established
Subprocessor access
Not established
no-KYC deposit
deposit available
Transfer mechanism
wallets

DeepInfra United States🇺🇸

Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. US; unknown; deposit available.

Zero data retention
On by default on Pay-as-you-go. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
None
Moderation
Not established
Caching
Not established
Subprocessor access
Not established
no-KYC deposit
deposit available
Transfer mechanism
unknown

Get started

Call Seedream 4 through the qynio gateway with one API key. Let your coding agent set it up, or call it directly — qynio is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up qynio for you.

Or call it directly

import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.QYN_API_KEY,
baseURL: "https://api.qyn.io/v3/compat",
});
const completion = await client.chat.completions.create({
model: "bytedance:ap/seedream-4",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Compare Seedream 4 with…

Side-by-side on privacy, crypto rails, pricing, and benchmarks.

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