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Try Seedream 5.0 Flash API online for image generation and editing, with up to 10 references, custom sizes, real examples and integration guides.

Provider: ByteDance

Category: image generation

Endpoint: /v1/tasks

Status: Available

Cost: See live page pricing

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Seedream 5.0 Flash

by ByteDanceImage

Try Seedream 5.0 Flash API online for image generation and editing, with up to 10 references, custom sizes, real examples and integration guides.

Pricing

Standard Usage

50 Credits/ image

Input

0 / 5000

More parameters

Upload assets

Preview after upload
0/10

Optional; edit one image or blend up to 10 references

Generation settings

Auto uses JPEG normally and PNG for transparent output

Transparent output requires one reference with an alpha channel; choose PNG or Auto

Choose a resolution preset or set a custom width and height.

Generation preferences

Off by default; enable to add an AI-generated watermark

Estimated cost50 Credits / imageper image

Output

Ready for generation

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

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Explore a complete product scene

Inspect the full result, visual details and original prompt.

Related image models

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

Text to image

Seedream 5.0 Pro

Compare composition and material rendering within the Seedream family.

Compare AI image APIs

Model specifications

Explore reference limits, sizes, formats and quality settings for Seedream 5.0 Flash.

Reference images
0-10
Output resolution
1K1.5K2K
Aspect ratios
1:16–16:1
Output formats
JPEGPNG
Prompt length
1–5000 characters
Pricing
Single image: 50 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 5.0 Flash

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-5.0-flash
cURL
curl -X POST "https://api.hiapi.ai/v1/tasks" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "seedream-5.0-flash",
  "input": {
    "prompt": "A cinematic product campaign with sharp text",
    "size": "2K",
    "background": "opaque",
    "watermark": false
  }
}'

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

Read the full API documentation

SEEDREAM 5.0 FLASH · IMAGE CREATION

Give a visual idea a form you can see

Seedream 5.0 Flash is ByteDance’s image generation and editing model. Start with text to bring together a subject, materials, light and setting, or supply existing images and describe what to preserve and change. It fits product-staging concepts, content imagery and design proposals, giving teams something concrete to discuss before production.

Text to imageReference editingCustom canvas
Folded paper, frosted glass and stone · Generated with Seedream 5.0 Flash

Start from a brief, or build around existing images

Without source material, the brief defines the image. With a product shot, scene or design in hand, references provide visual context. Both paths use the same model, so moving into an edit does not require choosing another version. Define where the image will be used and what must stay recognizable; that makes the result easier to assess than a brief packed with competing requests.

01 / PRODUCTS & MATERIALS

Use materials and light to describe a product

The teapot example places teal ceramic, a walnut handle and pale stone in shared morning light. Look at the shading across the body, the handle texture, the separation from the background and the steam suggesting warmth. Together they communicate a staging and lighting direction, rather than an isolated product silhouette.

Use this kind of image to explore backgrounds, surfaces and lighting before a shoot, or as a visual draft in a product proposal. When the final asset must match a real item, provide a product reference and check its outline, structure, color and markings. A text-generated concept cannot establish product facts.

  • Contrast between glaze and wood grain
  • Separation of subject, surface and background
  • Atmosphere from window light and steam
Ceramic, walnut and morning light · 2496 × 1664 · Text-generated image

02 / COMPOSITION & DELIVERY

Choose the destination before the canvas

A web hero needs horizontal space, mobile content needs a vertical hierarchy, and a product tile often benefits from a centered composition. Explicit dimensions let the destination, subject placement and negative space inform the brief together. Resolution presets do not fix an aspect ratio. For an exact shape, enter pixel dimensions and describe where the subject and space for later layout should go.

Web banner

1536 × 1024

Square visual

1024 × 1024

Portrait content

03 / REFERENCES & EDITING

Give each reference a clear role

References can supply a product’s appearance, an environment or a visual style. For one-image edits, distinguish requested changes from elements to preserve. With several images, identify which supplies the subject, which provides the setting and which contributes only color. Clear roles give the creative brief a more definite direction than leaving those relationships unstated.

Reference-role diagram

Subject

Preserve appearance and key details

Setting

Define space and staging

Style

Guide color, texture or mood

Put the image to work

Start with visual exploration, assess the result against its destination, then decide what to carry into production.

01

Product teams: explore staging before production

Combine a product concept or existing product image with material, background and lighting requirements to create staging drafts for review. Agree on the visual direction before handing it to photography or design, and check dimensions, lettering and structure against the actual item.

Deliverable: product proposals and shoot references

02

Content teams: build visuals around the layout

Use a subject and canvas brief to create visuals for an article, campaign mood or social post. Establish the focal point and negative space, then add final headlines, logos and campaign details in a design tool so the text and image can each be refined.

Deliverable: web, editorial and social visuals

03

Design teams: make an abstract direction tangible

Combine color, geometry, materials and environment in a concept image for discussions about brand character or spatial mood. When continuing an existing visual language, add references and identify exactly which elements to borrow, avoiding unrelated content from those sources.

Deliverable: visual proposals and mood boards

Decide whether Flash fits the task

Still exploring a direction
Start with text and a clear destination. Compare composition, color and light, then refine a direction worth continuing.
Have assets that must remain recognizable
Provide references and specify preservation and change requirements. Inspect fine details when products, people or markings matter.
Need a different output workflow
This route returns one image per task and offers neither a 4K preset nor layered files. Check related models when those capabilities are part of the deliverable.

From a first image to an application workflow

Adjust the parameters in Playground, inspect the result, and use the confirmed request in your application. HiAPI uses a unified API key, with task retrieval or callbacks for results. Estimates appear before a run; the task response states image retention. Creators can establish the visual direction before developers bring the same inputs into a product.

Back to PlaygroundManage API keys
Need to compare models and billing tiers?View live pricing for all models

Frequently asked questions

Can I generate and edit with the same model?

Omit references for text-to-image generation. Add one image for editing or several to combine subjects, scenes or styles. Both use the same model ID, with up to 10 references.

How do I control resolution and aspect ratio?

Set size to 1K, 1.5K, 2K or WIDTHxHEIGHT. Use pixel dimensions for an exact ratio: 921600–4624220 total pixels and a ratio between 1:16 and 16:1. A 4K preset is not available.

What does transparent background require?

Use transparent only when editing one reference that already has an alpha channel. Choose PNG or leave the format automatic. It is not a general background-removal switch.

Can I request batches or streamed images?

Each task returns one completed image through task retrieval. Batch generation, streamed images and layer decomposition are not exposed.

How do I retrieve the image?

Save taskId after submission, retrieve the task until success, then read the image URL from output. Follow expireAt for retention and save assets you need to keep.

Can I use these images as accurate product photography?

Text generation is useful for exploring staging, backgrounds and light, or making visual proposals. If an image must match a real product, supply a reference and check structure, color, markings and lettering. Generated concept details are not product facts.

How should I combine several references?

Assign a role to each image: for example, the first supplies the product, the second the setting, and the third only the color palette. Describe the intended result and details to preserve, avoiding conflicting requirements across references.

Can I continue editing a previous result?

Supply the previous result as a reference in a new task and describe the next change. Tasks are independent and do not automatically remember earlier conversations, images or edits.

Where can I check the generation cost?

Check the Playground estimate before running and the task record afterward. Each task produces one image; the page’s pricing section shows the applicable charge.

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

Draft

1K

Final

2K

02

Choose output settings

Choose size and file format. For editing, add references and specify what to preserve and change.

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.

1024 × 1536

Canvas diagrams: these are valid size examples, not generated outputs.

Images + edit brief → one new image

Each task reads the material supplied with that request. To continue an edit, provide the previous result as a new reference; there is no automatic memory of the last task. Transparent output requires editing one image that already has an alpha channel, with PNG or automatic output format.