Does Seedream 4.5 support zero data retention?

Not by default. See the per-route data-handling section for each route's logging stance and retention window.

Where is Seedream 4.5 hosted?

Seedream 4.5 is available on multi-region hosting through the qynio gateway. See the per-route table for details.

Is Seedream 4.5 trained on prompts and outputs?

No. Every hosting route for Seedream 4.5 is configured so customer prompts and outputs are not used to train models by default.

Is a no-KYC deposit available for Seedream 4.5?

Yes. A no-KYC Data Processing Agreement is available on at least one route serving Seedream 4.5. Contact hello@qyn.io to receive it.

Seedream 4.5

by ByteDance

Seedream 4.5 is ByteDance's high-fidelity image model from December 2025, an upgrade over September's Seedream 4.0 that unifies generation and editing in one architecture while running roughly ten times faster than its predecessor. It renders text within images precisely and outputs at up to 4K resolution. The model accepts as many as 10 reference images per request, blending styles, characters, or products while holding subject fidelity, perspective, and lighting steady. That makes it a workhorse for e-commerce compositing, brand asset variations, and instruction-driven edits where the result has to stay consistent with source material.

Open in playground Try in chat Compare

Key info

Input

Output

Features

Pricing

$0.04 / generation

Billing

Per generation

No training by default
no-KYC deposit available

Pricing

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

Variant	Price
Standard	$0.04 / generation

Available routes

Seedream 4.5 runs on 1 route through the qynio gateway. Compare residency, zero retention, and training posture at a glance — full data-handling detail per route below.

Provider	Region	Zero data retention	Training	Price
BytePlus	Multi	Not by default	No	$0.04 / generation

Data handling per route

Each route hosting Seedream 4.5 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

Get started

Call Seedream 4.5 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

1import OpenAI from "openai";
2
3const client = new OpenAI({
4  apiKey: process.env.QYN_API_KEY,
5  baseURL: "https://api.qyn.io/v3/compat",
6});
7
8const completion = await client.chat.completions.create({
9  model: "bytedance:ap/seedream-4.5",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);