models/ByteDance/Seedream 5 Pro
ByteDance

Seedream 5 Pro

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Seedream 5 Pro is ByteDance's high-quality image generation and editing model with text prompts, up to 10 reference images, and 1K, 2K, or explicit pixel-size output controls.

MODALITIES
image
PER IMAGE
$0.045
RELEASED
2026-07-23

Seedream 5 Pro (bytedance/seedream-5-pro) is a image model from ByteDance, released 2026-07-23. Pricing via AIgateway: $0.045 per image. Call it via https://api.aigateway.sh/v1/images/generations — set model="bytedance/seedream-5-pro".

model · bytedance/seedream-5-profamily · Seedream

Use this model

model: bytedance/seedream-5-pro
curl https://api.aigateway.sh/v1/images/generations \
  -H "Authorization: Bearer $AIGATEWAY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"bytedance/seedream-5-pro","prompt":"a serene cyberpunk city at dusk"}'
API schema

Call Seedream 5 Pro from any OpenAI SDK

POST https://api.aigateway.sh/v1/images/generations·Content-Type: application/json·Auth: Bearer sk-aig-...

Request body

json
{
  "model": "bytedance/seedream-5-pro",
  "prompt": "A cyberpunk cat at sunset, cinematic lighting",
  "n": 1,
  "size": "1024x1024",
  "response_format": "url"   // or "b64_json"
}

Response

json
{
  "created": 1776947082,
  "data": [
    { "url": "https://media.aigateway.sh/img/abc123.png" }
    // or { "b64_json": "iVBORw0KGgoAAAANSUhEU..." }
  ]
}

Quickstart

from openai import OpenAI
client = OpenAI(base_url="https://api.aigateway.sh/v1", api_key="sk-aig-...")

r = client.images.generate(
    model="bytedance/seedream-5-pro",
    prompt="a cyberpunk cat at sunset",
    size="1024x1024",
)
print(r.data[0].url)

Errors

401authentication_errorInvalid or missing API key
402insufficient_creditsWallet empty (PAYG only)
404not_foundUnknown model or endpoint
429rate_limit_errorOver per-minute limit — see Retry-After header
500server_errorUpstream provider failed (retryable)
503service_unavailableUpstream saturated (retryable)
Full docs →API reference →OpenAPI spec →llms.txt →

Frequently asked questions

What is Seedream 5 Pro?
Seedream 5 Pro is ByteDance's high-quality image generation and editing model with text prompts, up to 10 reference images, and 1K, 2K, or explicit pixel-size output controls. It is a image model from ByteDance, accessible via AIgateway's OpenAI-compatible API at slug bytedance/seedream-5-pro.
How much does Seedream 5 Pro cost via AIgateway?
$0.0450 per image, billed pass-through.
How do I call Seedream 5 Pro from my code?
Point the OpenAI SDK at https://api.aigateway.sh/v1 with your AIgateway key and set model to "bytedance/seedream-5-pro". The request and response shapes match OpenAI exactly.
Does Seedream 5 Pro support streaming, tool calling, vision, and JSON mode?
Streaming — no. Tool calling — no. Vision — no. JSON mode — no. Prompt caching — no.
Can I bring my own ByteDance API key (BYOK)?
Yes. Attach a ByteDance key in your AIgateway dashboard and this model flips to pass-through — you pay ByteDance directly and AIgateway adds no platform fee on those calls.