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ByteDance: Seedream 5.0 Lite

bytedance-seed/seedream-5-0-lite
images

The lightweight Seedream from ByteDance: fast, affordable image generation. Supports references and wide formats.

Price
Released
Aug 13, 2026

Parameters

promptrequired
aspect_ratio1:11:22:12:33:23:44:34:55:49:169:2116:921:9
resolution2k4k
size876x20482048x8761024x20482048x10241152x20482048x11521364x20482048x13641536x20482048x15361638x20482048x16382048x20481754x40964096x17542048x40964096x20482304x40964096x23042730x40964096x27303072x40964096x30723276x40964096x32764096x4096
imageimage-to-image (via /v1/images/edits)

How to use via API

import base64
from openai import OpenAI

client = OpenAI(base_url="https://api.mixen.ai/v1", api_key="mxn-...")
img = client.images.generate(
    model="bytedance-seed/seedream-5-0-lite",
    prompt="Милый кот-космонавт на Марсе",
    size="876x2048",  # либо extra_body={"aspect_ratio": "1:1", "resolution": "2k"}
    n=1,
)
with open("image.png", "wb") as f:
    f.write(base64.b64decode(img.data[0].b64_json))

# image-to-image: передать референс(ы) через multipart
edited = client.images.edit(
    model="bytedance-seed/seedream-5-0-lite",
    image=open("photo.png", "rb"),  # один или несколько референсов
    prompt="Добавь неоновую вывеску на фасад, сохрани композицию",
)
with open("edited.png", "wb") as f:
    f.write(base64.b64decode(edited.data[0].b64_json))
API docsTry in the bot