Seedream 5 Lite

Name: Seedream 5 Lite
Brand: ByteDance
SKU: seedream-5-lite
Price: 0.042 USD
Availability: InStock

Image generationNewAvailable

by ByteDanceseedream-5-lite

ByteDance Seedream 5 Lite: fast, affordable image generation and editing at 2K or 3K resolution.

Try it Get API key Compare

Price: US$0.042/image
Aspect ratios: 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3, 21:9
Resolution: 2K, 3K
Input → output: Text → Image
Developer: ByteDance
Updated: 24 September 2026

Playground

Try Seedream 5 Lite

Input & output

US$0.042/image

Prompt

Size(optional)

Advanced settings (1)

AspectRatio(optional)

⌘/Ctrl + Enter

Output

Your image appears here.

This run

US$0.042 · 4.2 credits

For accounts without a purchase: runs above 2 credits need a top-up.

New here?

10 free credits (US$0.10) when you sign up with Google

Usable 24 hours after sign-up, up to 5 runs per day and at most 2 credits per run. Other sign-in methods start without credits.

Examples

Real outputs from the public examples of this model on Replicate, with the prompt and settings that produced them. They were not generated live on this page.

Open full size
Prompt
A striking fashion editorial photograph of a model wearing an elaborate haute couture gown made entirely of living flowers — white peonies, pale pink roses, and trailing jasmine. She stands in a misty English garden at dawn. The dress cascades to the ground and merges with the garden floor. Dewdrops on every petal catch the first light. Her hair is pulled back severely, face serene, skin porcelain. A single monarch butterfly rests on her shoulder. The background is a soft impressionist blur of green hedgerows and pale sky. Shot on Phase One IQ4 150MP, every stamen and pistil razor sharp.
Settings
aspect_ratio

2:3
size

2K
Open full size
Prompt
A woman standing in a Tokyo alleyway at dusk, neon signs reflecting off wet pavement. Shot on expired Kodak Portra 800, pushed two stops. The tungsten light from a ramen shop spills warm orange across her face while the neon casts cool cyan highlights on her hair. Visible grain, halation around the light sources, slightly lifted blacks. She's mid-step, caught between two worlds of color.
Settings
aspect_ratio

2:3
size

2K
Open full size
Prompt
A large-format typographic poster for a fictional jazz festival. At the top in bold condensed sans-serif: "BLUE NOTE SESSIONS" in deep navy. Below in elegant script: "Summer 2026 — Central Park, New York." The poster lists four performers: "Miles Ahead Quintet / Saturday 8PM" "Sarah Chen Trio / Saturday 10PM" "The Monk Revival / Sunday 7PM" "Coltrane Legacy Orchestra / Sunday 9PM". A stylized golden saxophone silhouette runs vertically along the right edge. Background is a gradient from midnight blue to warm amber. At the bottom in small caps: "Tickets at bluenote.nyc — All ages welcome."
Settings
aspect_ratio

2:3
size

2K

About Seedream 5 Lite

TL;DRAs of 24 September 2026

Seedream 5 Lite is a model by ByteDance in the Image generation category. On Railwail, Seedream 5 Lite costs US$0.042 per image. Supported aspect ratios: 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3 and 21:9.

Pricing

Prices in US dollars. Usage is charged from prepaid credits.

Per image	US$0.042 per image

1 credit = US$0.01

Cost calculator

Price calculator

Results per run

/ run

Runs

Total

US$4.20

420 credits

Per run

US$0.042 · 4.2 credits

Fixed price per run, known before the run starts.

API

Call Seedream 5 Lite with your Railwail API key. Use this model ID in the request:

seedream-5-liteAPI documentation Get an API key

curl https://railwail.com/api/v1/images/generations \
  -H "Authorization: Bearer $RAILWAIL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedream-5-lite",
    "prompt": "A lighthouse on a rocky coast at sunset, photorealistic"
  }'

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["RAILWAIL_API_KEY"],
    base_url="https://railwail.com/api/v1",
)

image = client.images.generate(
    model="seedream-5-lite",
    prompt="A lighthouse on a rocky coast at sunset, photorealistic",
)

print(image.data[0].url)

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.RAILWAIL_API_KEY,
  baseURL: "https://railwail.com/api/v1",
});

const image = await client.images.generate({
  model: "seedream-5-lite",
  prompt: "A lighthouse on a rocky coast at sunset, photorealistic"
});

console.log(image.data[0].url);

// npm install railwail
import railwail from "railwail";

const rw = railwail(process.env.RAILWAIL_API_KEY);

const res = await rw.image("seedream-5-lite", "A lighthouse on a rocky coast at sunset, photorealistic");

console.log(res.data[0].url);

Set your key as RAILWAIL_API_KEYCreate API key

Specifications

Model ID: seedream-5-lite
Developer: ByteDance
Category: Image generation
Input: Text
Output: Image
Aspect ratios: 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3, 21:9
Resolution: 2K, 3K
Billing: Fixed price, known before the run
Catalog entry updated: 24 September 2026

Input parameters

Inputs and settings from the model's input schema. The example in the API section shows which of them the API accepts.

ParameterTypeDefaultAllowed values

promptrequired
Type: Text
Default: –
Allowed values: –
size
Type: Choice
Default: 2K
Allowed values: 2K or 3K
aspectRatio
Type: Choice
Default: 1:1
Allowed values: 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3 or 21:9

Use cases

Related guides

Text to Image Models

All models in Image generation

Frequently asked questions

What is Seedream 5 Lite?

Seedream 5 Lite is a model by ByteDance in the Image generation category. On Railwail you can call it with an API key through the Railwail API.

How much does Seedream 5 Lite cost on Railwail?

On Railwail, Seedream 5 Lite costs US$0.042 per image. The price is known before the run starts. Usage is paid from prepaid credits; 1 credit equals US$0.01.

Which settings does Seedream 5 Lite support?

According to its input schema, Seedream 5 Lite knows these parameters: prompt, size (2K or 3K) and aspectRatio (1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3 or 21:9).

How fast is Seedream 5 Lite?

There are not enough measured runs of Seedream 5 Lite on Railwail yet to state a run time. It depends on the input, the settings and the load at the provider.

Is Seedream 5 Lite better than FLUX 1.1 Pro?

That depends on the task. Seedream 5 Lite (ByteDance) and FLUX 1.1 Pro (Black Forest Labs) are both models in the Image generation category. The comparison page shows their prices and specifications side by side.

Compare Seedream 5 Lite and FLUX 1.1 Pro

How do I use Seedream 5 Lite through the API?

Create a Railwail API key and send your request with the model ID seedream-5-lite. Code examples for curl, Python and JavaScript are in the API section of this page.

Comparable models

All in this category

FLUX 1.1 ProBlack Forest Labs
Black Forest Labs' flagship text-to-image model. Faster generation than FLUX.1 Pro at higher prompt adherence, with strong photorealism and reliable spatial composition. Runs as a hosted Replicate model.
US$0.048/image
14 % more expensive per unit
Compare Seedream 5 Lite vs. FLUX 1.1 Pro
Flux 1.1 Pro UltraBlack Forest Labs
FLUX 1.1 Pro in ultra mode. Up to 4 megapixel images with raw mode for photorealism.
US$0.072/image
71 % more expensive per unit
Compare Seedream 5 Lite vs. Flux 1.1 Pro Ultra
Flux DevBlack Forest Labs
Black Forest Labs' development model. Fast, high-quality image generation with LoRA support.
US$0.0384/image
9 % cheaper per unit
Compare Seedream 5 Lite vs. Flux Dev

Use Seedream 5 Lite via the API

One API key for every model on Railwail. Usage is charged from prepaid credits, 1 credit = US$0.01.

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