How much does Seedream 5.0 Pro cost?

Seedream 5.0 Pro is credit-based — 1 credit equals $0.001. The 2K output tier costs more than 1K; for multi-reference requests, the first reference is included and references 2–10 add the official surcharge.

Does Seedream 5.0 Pro support image-to-image?

Yes. Pass one image in image_urls for single image-to-image, or up to ten for multi-reference fusion, which blends the references into one result. URLs must be public HTTP(S) links.

Can Seedream 5.0 Pro render text in images?

Yes — text rendering is a Seedream 5.0 Pro strength. It writes legible headlines, logos, and captions, which makes it a fit for posters, covers, and ad creative.

What resolutions does Seedream 5.0 Pro support?

Seedream 5.0 Pro outputs at the basic 1K or high 2K tier across seven supported aspect ratios. There is no 4K tier on Pro.

How many images does Seedream 5.0 Pro return per call?

One. Seedream 5.0 Pro returns exactly one image per request — there is no n parameter. Send multiple requests when you need multiple images.

How does the Seedream 5.0 Pro API work?

Submit a prompt to /api/v1/images/generations and reAPI returns a task_id. Poll GET /api/v1/tasks/:id until the status is completed, then read the image from output.image_urls. Most tasks finish in seconds.

Where are the full Seedream 5.0 Pro API docs?

The complete Seedream 5.0 Pro parameter list, error codes, and runnable examples live at /docs/seedream-5-0-pro.

Is Seedream 5.0 Pro free or paid?

Paid. Completed generations are charged at the rates in this page's pricing table. Eligible new accounts may receive promotional test credits; availability and amount are shown at signup or in the dashboard. Technical or provider failures are refunded automatically, except where this page documents a charged output-moderation block.

Does Seedream 5.0 Pro require a monthly subscription?

No. Pricing is pay-as-you-go: $1 buys 1,000 credits and credits never expire. Cost scales with what you generate rather than with a recurring fee.

How do I get a Seedream 5.0 Pro API key?

Sign up and create a key in the dashboard, no card required. Pass it as a Bearer token in the Authorization header.

Seedream 5.0 Pro — Text & Image to Image Generation

Seedream 5.0 Pro is ByteDance's flagship image model — turn a prompt or up to ten reference images into sharp 1K–2K visuals with reliable text rendering. Submit a prompt and poll one task for the finished image.

Highlights: ByteDance flagship · basic / high quality tiers
Best for: Photoreal portraits, e-commerce, art
Input: Text, plus up to 10 reference images
Output: One image per request

Input

Prompt*

≤ 4000 chars

Aspect ratio*

1:1 · 4:3 · 3:4 · 16:9 · 9:16 · 2:3 · 3:2

Reference images

Drag images here or click to upload

0/10 files

Up to 10 · public URLs

Quality*

basic · high

Content filter

Always on in Playground. Do not generate restricted content: flagged images are hidden, but generation is still charged. API users can disable it with content_filter=false.

Estimated cost~$0.03232 credits

Result

Try one of these prompts

What is the Seedream 5.0 Pro API?

Seedream 5.0 Pro is ByteDance's flagship image model, exposed on reAPI as one async endpoint for text-to-image and multi-reference image-to-image with up to 10 reference images. Each request picks one of seven aspect ratios and a quality tier — basic for 1K or high for 2K — and returns a single image, billed per image.

What you can build with this model

Real-world workflows and production use cases you can build and ship with this model.

Photorealistic image generated by Seedream 5.0 Pro

Photoreal shots from a single prompt

Seedream 5.0 Pro renders convincing photography — dramatic perspectives, natural light, and lifelike skin — straight from text. Describe the scene and get a finished frame in one call.

Try a prompt

Magazine cover with rendered text from Seedream 5.0 Pro

Typography and graphic design that reads

Seedream 5.0 Pro renders legible headlines, logos, and layout text, so posters, magazine covers, and ads come back print-ready. Dependable text rendering is where it pulls ahead of older image models.

Portraits and characters with reference control

Pass up to ten reference images and the model fuses them into a consistent character or restyled portrait. Multi-reference image-to-image keeps faces and wardrobe on-model across a series.

Pricing

Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.

First test cost

$0.03232 credits

One sample at the cheapest tier (1 image).

Testing budget guide

Add credits

$10

≈ 319 tests

$50

≈ 1596 tests

$100

≈ 3192 tests

Model	Category	Price
Seedream 5.0 Pro	1K image (≤ 2.36M px)	$0.032 32 credits · 1 image
	2K image (> 2.36M px)	$0.063 63 credits · 1 image
	1K image (≤ 2.36M px) · Output check disabled · API only	$0.034 34 credits · 1 image
	2K image (> 2.36M px) · Output check disabled · API only	$0.067 67 credits · 1 image

Why reAPI

Flagship image quality

Seedream 5.0 Pro is ByteDance's top Seedream tier — sharper detail, stronger prompt adherence, and dependable text rendering at up to 2K. It is the model to reach for when the output has to look finished.

Transparent per-image pricing

1 credit equals $0.001. Pricing follows the official output tier, with the first reference included and an official surcharge for each additional reference. Images blocked by the output check are still charged because generation completed.

Async images API

Submit a prompt to the images endpoint and reAPI returns a task_id. Poll the task until it reaches a terminal state. Completed tasks return the image in output.image_urls. Generation or system failures are refunded automatically; images blocked by the output check are hidden and still charged.

Seedream 5.0 Pro vs Nano Banana Pro

How ByteDance's Seedream 5.0 Pro compares with Google's Nano Banana Pro for prompt-driven image generation.

Capability

Seedream 5.0 Pro

Nano Banana Pro

Text rendering

Reliable legible headlines, logos, and layout text

Strong text rendering

Reference images

Up to 10 for multi-reference fusion

Multi-image reference supported

Max resolution

High-quality 2K tier

Up to 4K

Delivery

Async task_id — poll for the image URL

Synchronous

Pricing model

Official output-tier price plus additional-reference surcharge

Per-image, premium tier

Access

OpenAI-style images endpoint on reAPI

Available through Google tooling

Comparison reflects publicly documented behavior at the time of writing and may change.

Call Seedream 5.0 Pro in three steps

step 01
Create an API key
Sign up and grab a key. Free credits cover your first Seedream 5.0 Pro images — no card required.
Open
step 02
POST your prompt
Send a prompt to /api/v1/images/generations with the model set to doubao-seedream-5-0-pro. Choose an aspect_ratio and set quality to basic or high; add reference images when you need them.
Open
step 03
Use the image URL
reAPI returns a task_id. Poll GET /api/v1/tasks/:id until it is completed, then download the image from output.image_urls.
Open

docs/api/seedream-5-0-pro

API reference

Drop-in code and the full parameter table.

View full reference

curl -X POST https://reapi.ai/api/v1/images/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao-seedream-5-0-pro",
    "prompt": "a scarlet macaw on a mossy branch, cinematic god rays",
    "aspect_ratio": "16:9",
    "quality": "high"
  }'

Parameter validation failed

Rejected synchronously with the failing field named. Check enum values, ranges, and URL fields — nothing is charged.

Authentication or balance issue

401 means a missing or invalid Bearer key; 402 means the reserve exceeds your balance. Manage keys and credits in the console.

Content or material rejected

Reference material and outputs pass automated moderation. Rejected tasks fail with a clear error and a full refund.

Task failed or timed out

A task that reaches a failed state is never charged — the reserve refunds automatically. Keep the task id and retry when ready.

Frequently asked questions

Common questions about this model.

Seedream 5.0 Pro is ByteDance's flagship Seedream image model. It turns text and up to ten reference images into 1K–2K images with strong text rendering. On reAPI, it is served through an async images endpoint.