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Try Seedream 4.5 Text to Image with real landscape, food, sci-fi, and Chinese-aesthetic examples, eight ratios, 2K/4K output, and API code.

Provider: ByteDance

Category: image generation

Endpoint: /v1/tasks

Status: Available

Cost: See live page pricing

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Seedream 4.5 Text to Image

New
by ByteDanceImage

Try Seedream 4.5 Text to Image with real landscape, food, sci-fi, and Chinese-aesthetic examples, eight ratios, 2K/4K output, and API code.

Pricing

Standard Usage

90 Credits/ image

Input

0 / 3000
Estimated cost90 Credits / imageper image

Output

Ready for generation

Configure your parameters and click "Run" to see the output here.

--GPU-T4

From product campaigns to detailed scenes

Browse real API results across different aspect ratios, complete prompts, and visual detail.

Related image models

Choose an adjacent model by task, output tier, and reference-image needs.

Multi-reference editing

Seedream 4.5 Image to Image

Use the companion route for up to fourteen references and controlled image edits.

Newer low-cost generation

Seedream 5.0 Lite

Compare a newer flat-price route with 2K/4K output and eight ratios.

Campaign-grade generation

Seedream 5.0 Pro

Use the Pro route for demanding text, material, and final campaign composition.

Compare AI image APIs

About Seedream 4.5 Text to Image

Try Seedream 4.5 Text to Image with real landscape, food, sci-fi, and Chinese-aesthetic examples, eight ratios, 2K/4K output, and API code.

The Playground and API use the same model ID: seedream-4.5/text-to-image. This endpoint accepts text prompts only; reference-image editing uses the separate Image-to-Image route.

Provider
ByteDance
Task
Text-to-Image
References
Not supported
Pricing
90 Credits / image

Model specifications

These specifications reflect the current Seedream 4.5 Text to Image request contract.

Reference images
Not supported
Output resolution
2K4K
Aspect ratios
1:14:33:416:99:162:33:221:9
Prompt length
4-3000 characters
Pricing
2K or 4K: 90 Credits / image

Final cost depends on the output tier and input add-ons. Check the live page price and task record for the final charge.

How to use Seedream 4.5 Text to Image

Choose the destination and aspect ratio before composing subject, scene, material, light, and text.

Subject
Scene
Camera and light
01

Describe subject and scene

API Quickstart

Copy a minimal request below. See Docs for parameters, callbacks, task retrieval, and errors.

Endpoint
POST /v1/tasks
Model ID
seedream-4.5/text-to-image
cURL
curl -X POST https://api.hiapi.ai/v1/tasks \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "seedream-4.5/text-to-image",
  "input": {
    "prompt": "A cinematic product campaign with sharp text",
    "aspect_ratio": "1:1",
    "resolution": "2K"
  }
}'

The create request immediately returns a taskId; image generation continues asynchronously.

Read the full API documentation

Frequently asked questions

What is Seedream 4.5 Text to Image best for?

Chinese-aesthetic scenes, food photography, sci-fi, landscapes, and general creation that needs 2K or 4K output.

Do 2K and 4K cost differently?

Both resolutions currently use the same per-image tier. See the live page price for the current amount.

Why is aspect ratio required?

The current contract requires explicit aspect_ratio and resolution so output sizing does not rely on an implicit default.

Can I upload references?

Not on this route. Use seedream-4.5/image-to-image.

How long can the prompt be?

Four to 3,000 characters, in Chinese or English.

Start with the subject, environment, and visual goal, then add material, light, camera, and exact text.

Draft

2K

Final

4K

02

Choose output settings

Choose one of eight ratios and render at 2K or 4K.

Playground
POST /v1/tasks
03

Validate before integration

Confirm the result in Playground, then reuse the same prompt and model ID in an asynchronous task.