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Seedream 4.5AI image generator

2K or 4K images with crisp typography, and edits of up to 14 reference images. On Leap, it sits beside 174 other models in one studio.

  • Text to image
  • Image edit
  • 8 aspect ratios

Your first image is free. 1 image on Seedream 4.5: $0.054. Your words wait while you sign in.

  • No subscription
  • Every top model, one account
  • Pay per run, priced before it starts
The first frame of 5 da manhã, shot 1
“Wide shot, 35mm, 5 a.m. in an empty steep street in Alfama, Lisbon: wet cobbles, sodium streetlights, a yellow vintage tram passing close to camera in motion blur; beyond it, under a streetlight, the dancer from the reference image in the same red-and-cream windbreaker, wide black trousers and white sneakers stands mid-move with one arm up. No readable text, no logos. Shot on 35mm, handheld feel, grain. Palette: tram yellow, track-jacket red, azulejo blue, dawn pink. Lisbon at the end of the night.”How it was made

AI image generator

Seedream 4.5 at a glance

Seedream 4.5 is an image model from ByteDance. It makes images from words or up to 14 photos, at up to 4K.

The version before it: Seedream 4.0.

Made by
ByteDance
Makes
Images
Starts from
Words or up to 14 photos
Resolution
2K or 4K
Shapes
1:1, 4:3, 3:4, 3:2, 2:3, 16:9, 9:16, 21:9
Per run
Up to 4 images
Prompt
Up to 32,000 characters
Price per run
$0.054
Updated
October 7, 2026

How it's made

From a still to a film, in one place.

"KOLO, shot 1", replayed step by step: Seedream 4.5 makes the still, Seedance 1.5 Pro brings it to life. Two models, one studio.

The first frame of KOLO, shot 1
KOLO, shot 1, made on Leap
  1. 01Seedream 4.5Makes the stillDone

    Vertical candid selfie photo taken at arm's length, the photo itself filling the frame, slight wide-angle distortion, evening lamp light: a 19-year-ol...

  2. 02Seedance 1.5 ProBrings it to lifeDone

    She talks fast and excited to the camera: "Okay. Night shift survival kit. This is a tiny espresso maker and you literally just pump it." She pumps th...

  3. "KOLO, shot 1", made on Leap: two models, one studio, one library.

Made on Leap

More from Seedream 4.5

  • Half Shade campaign, made on Leap

    Half Shade campaign

    Outdoor brand campaign poster for an invented Australian sunscreen brand called HALF SHADE. Photograph: a 72-year-old Greek Australian man, short and barrel-chested, deeply tanned and wrinkled skin, white chest hair, a battered straw hat, a white singlet, a thick stripe of white zinc cream across his nose, stands proudly in his backyard vegetable garden in suburban Melbourne holding up a huge bunch of homegrown tomatoes on the vine, tall tomato plants on stakes, a rotary washing line and a corrugated tin fence behind him, harsh midday sun, shot from slightly low. Typography: the HALF SHADE wordmark in a heavy rounded sans serif in white at the bottom left; under it, small: "Made for people who stay out too long."; at the bottom right a white sunscreen tube with an orange cap printed with the same wordmark. Hard sun, crisp shadows, real skin. No other text.

  • The first frame of 5 da manhã, shot 3

    5 da manhã, shot 3

    Vertical medium shot, 35mm: the dancer from the reference image, same red-and-cream windbreaker, mid-spin in front of a wall of blue-and-white azulejo tiles at night, jacket flaring open, eyes closed, sodium light from the side. No readable text, no logos. Shot on 35mm, handheld feel, grain. Palette: tram yellow, track-jacket red, azulejo blue, dawn pink. Lisbon at the end of the night.

  • The first frame of KOLO, shot 3

    KOLO, shot 3

    Vertical candid selfie photo taken at arm's length, the photo itself filling the frame, misty dawn light: a 44-year-old Black dad with a big full beard flecked with grey, a knit beanie and a red flannel shirt sits in the open door of a tent beside a misty lake in north Georgia, kids' sleeping bags just visible behind him, holding the terracotta espresso maker from the reference image. No readable text, no logos. Real UGC look: this image is the photo itself, full frame, as a phone camera would capture it; never show a phone, a screen, a bezel or a status bar. Natural light, slight wide-angle distortion, unpolished.

  • The first frame of KOLO, shot 4

    KOLO, shot 4

    Vertical candid photo, dawn: the terracotta espresso maker from the reference image standing on a mossy tree stump at the edge of a misty lake, a large hand with a silver ring reaching for its plunger, steam rising from the small clear cup in the cold air. No readable text, no logos. Real UGC look: this image is the photo itself, full frame, as a phone camera would capture it; never show a phone, a screen, a bezel or a status bar. Natural light, slight wide-angle distortion, unpolished.

  • Bottle on a park path, a real run on Leap

    Bottle on a park path

  • Bottle at the gym, a real run on Leap

    Bottle at the gym

  • Bottle at the desk, a real run on Leap

    Bottle at the desk

  • Copper hair and freckles, studio outtakes, a real run on Leap

    Copper hair and freckles, studio outtakes

Pick the right one

Seedream 4.5 and its siblings

ModelBest forResolutionPrice per run
Seedream 4.5 (this page)2K or 4K images with crisp typography, and edits of up to 14 reference images.Up to 4K$0.054
Seedream 4.0The lowest-priced Seedream: 1K to 4K images and edits of up to 14 reference images.Up to 4K$0.041
Seedream 5.0 ProByteDance's newest: detailed images up to 2K and edits of up to 10 reference images.Up to 2K$0.048
Seedream 5.0 LiteThe quicker Seedream 5.0: 2K to 4K images and edits of up to 14 reference images.Up to 4K$0.048

No prompt needed

Or start from a recipe

Recipes write the prompt for you: add a photo, pick a look, and get a finished result.

Why Leap

Why creators make it on Leap

  1. 01

    Every top model, side by side

    175 models from Black Forest Labs, Google, ByteDance, Kuaishou, Alibaba and more, side by side in one studio.

    See the models
  2. 02

    One click, or full control

    Character Studio, effects and recipes write the prompt for you. Or write your own for any model.

    See the tools
  3. 03

    Your work stays yours

    Everything you make stays in your library while your account is active, and you own what you make here.

    See what people make
  4. 04

    One balance for everything

    The studio, the API and your agents spend the same balance, and every run shows its price before it starts.

    How pricing works

Questions

Seedream 4.5, answered

What is Seedream 4.5?
Seedream 4.5 is an image model from ByteDance. 2K or 4K images with crisp typography, and edits of up to 14 reference images. On Leap it runs in one studio beside every other top model, with one account.
Can Seedream 4.5 start from a photo?
Yes. Seedream 4.5 starts from words or up to 14 photos.
What resolution and sizes does it make?
Up to 4K, in 1:1, 4:3, 3:4, 3:2, 2:3, 16:9, 9:16 or 21:9.
What's new in Seedream 4.5?
Seedream 4.5 follows Seedream 4.0. A default run costs $0.054, against $0.041 for Seedream 4.0.
How is it different from Seedream 4.0, Seedream 5.0 Pro and Seedream 5.0 Lite?
Seedream 4.5: 2K or 4K images with crisp typography, and edits of up to 14 reference images. Seedream 4.0: The lowest-priced Seedream: 1K to 4K images and edits of up to 14 reference images. Seedream 5.0 Pro: ByteDance's newest: detailed images up to 2K and edits of up to 10 reference images. Seedream 5.0 Lite: The quicker Seedream 5.0: 2K to 4K images and edits of up to 14 reference images. They all run in the same studio, so you can try one prompt on each.
How much does a run cost?
An image costs $0.054. You see the exact price before you press go, and a run that fails costs nothing.
Is Seedream 4.5 free to try?
No. There is no free credit: you add credit from $5, and your first top-up has no card fee. The cheapest run is $0.054 (an image), so $5 covers 92 of those. You pay per run, in dollars, with no subscription.
Can I use what I make commercially?
Yes. You own what you make on Leap, so you can use it commercially, and we never train AI on it. The people and brands shown in a result can still have rights in it; the Terms say more.
Is there an API?
Yes. Leap's REST API runs it as bytedance/seedream-4.5, at the same price per run as the studio, and agents can call it through Leap's MCP server. The request is at the bottom of this page.
Do I need a ByteDance account?
No. Leap sends your request to ByteDance's model and gives you what it makes. One Leap account runs Seedream 4.5 and every other model, in the studio, through the API and from your agents.

Your idea, Seedream 4.5.

Every run shows its price before it starts, and one that fails costs nothing.

Make it with Seedream 4.5

For developers

Run Seedream 4.5 from code

Model ID
bytedance/seedream-4.5
Makes
Image
Pricing
Per run, quoted first: POST /v1/quotes

Inputs

What the model takes. Leave out anything with a default.

Promptprompt
Text, up to 32,000 characters, required
Reference imagesimages
Up to 14 imagesUploaded files to edit or combine, by ID.
Aspect ratioaspect_ratio
1:1, 4:3, 3:4, 3:2, 2:3, 16:9, 9:16, 21:9. Default: 1:1
Imagesn
1 to 4. Default: 1
Resolutionsettings.resolution
2K, 4K. Default: 2K

The request

The same envelope for every model; only the model and its input change. With prefer: wait=60 the answer holds the result when the run finishes within a minute; a longer one is read again by its ID. Agents can call it through the MCP server at app.tryleap.ai/api/mcp.

curl https://api.tryleap.ai/v1/generations \  -H "x-api-key: $LEAP_API_KEY" \  -H "content-type: application/json" \  -H "prefer: wait=60" \  -d '{    "model": "bytedance/seedream-4.5",    "input": {      "prompt": "Wide shot, 35mm, 5 a.m. in an empty steep street in Alfama, Lisbon: wet cobbles, sodium streetlights, a yellow vintage tram passing close to camera in motion blur; beyond it, under a streetlight, the dancer from the reference image in the same red-and-cream windbreaker, wide black trousers and white sneakers stands mid-move with one arm up. No readable text, no logos. Shot on 35mm, handheld feel, grain. Palette: tram yellow, track-jacket red, azulejo blue, dawn pink. Lisbon at the end of the night."    }  }' # Video often outlasts the wait and answers "queued" or "running".# Put its "id" in GENERATION_ID and read it again until it is done:# curl https://api.tryleap.ai/v1/generations/$GENERATION_ID -H "x-api-key: $LEAP_API_KEY"