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

Prompt *0 / 3000

Aspect Ratio

Resolution

Estimated cost90 Credits / imageper image

Output

Ready for generation

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

From product campaigns to detailed scenes

Browse 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

Controlled image edits with up to fourteen references.

Low-cost generation

Seedream 5.0 Lite

Flat per-image pricing 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

Choose inputs and output settings for your creative goal with Seedream 4.5 Text to Image.

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

Describe subject and scene

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

Draft

Final

Choose output settings

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

Playground

POST /v1/tasks

Validate before integration

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

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

Need to compare models and billing tiers?View live pricing for all models

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.

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