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Kyeo AI
AI image model
ByteDance
Seedream

Seedream 4.0

Seedream 4.0 covers both text-to-image generation and reference-based editing on Kyeo AI. Its practical distinction is the control surface: users can set image size, 1K/2K/4K resolution, one to six outputs, a random seed, and an optional NSFW check. Those controls make it worth testing when a workflow needs explicit settings rather than a simple quality tier.

Capabilities
Text-to-Image, Image-to-Image
Credit cost
6 credits / request
Prompt limit
5,000 characters
Upload limit
Up to 10 references
Requests without references use the text-to-image workflow; requests with references use the editing workflow.
Editing accepts up to 10 reference images, while `max_images` requests one to six outputs.
Each request costs a fixed 6 credits under the current Kyeo AI configuration.
Users can select an image-size preset and 1K, 2K, or 4K output directly.
Try this model for freeView credit pricingBack to model gallery
30-second overview
Seedream
6 credits / request
What it does best
This Seedream entry combines text-to-image generation and reference-based editing while exposing resolution, output count, seed, and safety settings directly. Seedream 4.5 uses a smaller `aspect_ratio + quality` control set instead.
Best for
It is a candidate for placement-specific artwork, batches of concepts, and edits that use one or more references. Typography, product details, and consistency across a series still require testing with representative inputs.
Popular searches
how to use Seedream 4.0Seedream 4.0 pricingSeedream 4.0 parameter guide

At a glance

What is this model like?

Kyeo AI sends requests without reference images to the Seedream 4.0 text-to-image workflow and requests with references to the editing workflow. Prompts can contain up to 5,000 characters, editing requests can include up to 10 reference images, and each request can ask for one to six outputs. The current price is a fixed 6 credits per request. The input limit and output count are separate constraints, and neither 4K nor multiple outputs guarantee better accuracy, typography, or consistency.

What it does best
This Seedream entry combines text-to-image generation and reference-based editing while exposing resolution, output count, seed, and safety settings directly. Seedream 4.5 uses a smaller `aspect_ratio + quality` control set instead.
Best for
It is a candidate for placement-specific artwork, batches of concepts, and edits that use one or more references. Typography, product details, and consistency across a series still require testing with representative inputs.
Why use it on Kyeo AI
Kyeo AI presents Seedream's available controls, credit cost, and result workflow together, making it easier to compare options and begin creating.

Key facts

Quickly assess whether this model matches your workflow.

Category
AI image model
Vendor
ByteDance
Model family
Seedream
Integration
Current site integration
Platform model ID
bytedance/seedream-v4-text-to-image
Runtime
Asynchronous task
Prompt limit
5,000 characters
Upload limit
Up to 10 references

Also known as

The same model may appear under different names across documentation and community discussions; this list keeps them easy to search and compare.

Seedream 4.0 text to image
bytedance/seedream-v4-text-to-image
bytedance/seedream-v4-edit
Seedream 4.0 image editing

Common search intents

These questions and keywords combine public references with common creative use cases to help you choose faster.

how to use Seedream 4.0
Seedream 4.0 pricing
Seedream 4.0 parameter guide
Seedream 4.0 text-to-image
Seedream 4.0 image editing
Seedream 4.0 image_resolution
what does Seedream 4.0 max_images mean
Seedream 4.0 vs Seedream 4.5
Seedream 4.0 vs Seedream 5.0 Lite
does Seedream 4.0 support 4K

Selection guide

Use these decision points when choosing a model.

1
Test 4.0 when explicit controls matter

Put Seedream 4.0 on the shortlist when generation and editing must share one entry and the workflow needs separate choices for size, resolution, output count, and seed. The added controls are not a promise of better results.

2
Compare 4.5 when a quality tier is enough

Seedream 4.5 uses `aspect_ratio` and `quality`, while Seedream 3.0 is text-to-image only on Kyeo AI. Choose based on the controls the task actually needs and the results of a same-brief comparison.

3
Validate one output before requesting a batch

Start with one text-to-image request and one single-reference edit, keeping `max_images` at 1. Increase resolution or output count only after the composition, text, and edit instructions are usable.

Popular comparisons

Common comparison questions help you find the practical differences quickly.

What is the difference between Seedream 4.0 and Seedream 4.5?
Seedream 4.0 vs Seedream 4.5
What is the difference between Seedream 4.0 and Nano Banana Pro?
Seedream 4.0 vs Nano Banana Pro
What is the difference between Seedream 4.0 and Flux 2 Pro?
Seedream 4.0 vs Flux 2 Pro

Model comparison

Compare the current model with alternatives at a glance.

Dimension
Seedream 4.0
Seedream 3.0
Seedream 4.5
Workflow scope
Text-to-Image and image editing
Text-to-Image only
Text-to-Image and image editing
Key controls
image_size, image_resolution, max_images
aspect_ratio, quality
aspect_ratio, quality
Resolution choices
Direct 1K / 2K / 4K selection
basic 2K / high 4K tiers
basic 2K / high 3K tiers
Current pricing
6 credits / request
5 credits / request
7 credits / request
Best-fit workflow
Generation and editing with explicit resolution and output-count controls
A text-to-image-only comparison option
An aspect-ratio and quality-tier workflow

Practical usage insights

Practical observations based on real creative workflows.

Reference count and output count are different limits

The editing route accepts up to 10 reference images, while `max_images` controls whether a request asks for one to six outputs.

Seedream: Useful for comparisons

The upstream interface publishes both Seedream 4.0 routes but does not state the available model snapshot behind them.

Capabilities

Separate routes for generation and editing

Kyeo AI generates from text when no reference is present and passes image URLs to the editing workflow when references are uploaded. Editing accepts up to 10 JPG, PNG, or WebP files, with a 10 MB limit per image.

Direct resolution and output-count choices

Users can select 1K, 2K, or 4K and request one to six outputs through `max_images`. A 4K setting describes the target output tier.

A documented Kyeo AI control set

The interface provides nine size presets, a random seed from 0 to 2147483647, an optional NSFW check, and a 5,000-character prompt limit. A seed can support comparison tests but cannot guarantee identical results across service updates.

Use cases

Drafts for multiple placements

Choose square, portrait, landscape, or ultrawide presets for campaign art, covers, or illustrations. Any generated typography still needs human review.

Several candidates from one brief

Request one to six outputs to compare compositions and directions. Treat them as review candidates, not as an automatically consistent character, product, or text series.

Reference-driven product and character edits

State which reference supplies the subject, product, palette, background, or composition, and identify what must remain unchanged before asking for edits.

Prompt tips

Set the frame and hierarchy first

Describe the placement, subject position, negative space, and text hierarchy, then select the matching size preset.

Assign a role to each reference

For multiple references, identify which image supplies the subject, material, color, or style and list the identity features that must not change. This reduces conflicts between sources.

Validate at low count before scaling up

Test one output at 1K or 2K first, then try 4K or multiple outputs after the instructions work. The same prompt and seed should not be treated as a permanent reproducibility guarantee.

Strengths

One model entry covers both text-to-image generation and reference-based editing.
Nine size presets and separate 1K, 2K, and 4K choices support varied layouts.
A request can return one to six images for side-by-side concept review.
The current fixed price of 6 credits per request is easy to compare with adjacent Seedream versions.

Limitations

Upstream interface does not disclose the upstream model snapshot behind these routes, so Volcengine's direct-API features cannot be assumed here.
Multiple outputs and multiple references can increase review work; neither setting guarantees consistency.
The optional NSFW check cannot catch every unsuitable result; disabling it does not make content compliant with platform rules or applicable law.
Before uploading people, brands, or protected material, users must confirm permission, privacy, and usage rights.

Adjustable parameters

Quickly assess whether this model matches your workflow.

Image size
image_size
Optional
Parameter type: select
Default: square_hd
Square
Square HD
Portrait 4:3
Portrait 3:2
Portrait 16:9
Landscape 4:3
9 options
Output resolution
image_resolution
Optional
Parameter type: select
Default: 1K
1K
2K
4K
Number of outputs
max_images
Optional
Parameter type: number
Default: 1
Range 1 - 6
Random seed
seed
Optional
Parameter type: number
Range 0 - 2147483647
NSFW check
nsfw_checker
Optional
Parameter type: select
Default: false
Off
On

Credit usage

6 credits / request

Under Kyeo AI's current configuration, each submitted Seedream 4.0 request costs a fixed 6 credits.

Budget tip

Before batch generation, run an A/B test with the same assets across the current model and alternatives to validate quality and avoid wasting credits.

FAQ

Related models

Compare these similar candidates before deciding.

Seedream 4.5

Kyeo AI exposes Seedream 4.5 for both text-to-image generation and reference-based editing. Text-only requests use the generation route; adding an image switches to the editing route. The `basic` and `high` settings map to 2K and 4K output, and both currently cost 7 credits per request. A 4K label describes output size, not a guarantee of more accurate or more usable content.

AI image model
7 credits / request
View detailsUse now

Nano Banana Pro

Nano Banana Pro supports text-to-image generation and reference-image editing on Kyeo AI, with 1K, 2K, or 4K output. Each 1K or 2K request costs 8 credits, while 4K costs 14. Resolution is an output-size tier, not a guarantee of quality, accuracy, or detail.

AI image generation and editing model
8–14 credits per request
View detailsUse now

Flux 2 Pro

Flux 2 Pro on Kyeo supports text-to-image and image editing. A request without an upload uses `flux-2/pro-text-to-image`; attaching one to eight images switches to `flux-2/pro-image-to-image`. Both routes offer seven fixed aspect ratios and 1K/2K, currently priced at 5/7 credits.

AI image model
5-7 credits / request
View detailsUse now

Sources

Content is based on model documentation, feature references, and the settings available on Kyeo AI.

Source notes

This page was checked against ByteDance's official Seedream 4.0 material, the upstream interface's current text-to-image and editing documentation, and Kyeo AI's live workflow configuration. Kyeo calls `bytedance/seedream-v4-text-to-image` without references and `bytedance/seedream-v4-edit` when references are present. The upstream interface does not identify the exact available model snapshot, so this page does not assume that every option in Volcengine's direct API is available here.

Last reviewed: 2026-07-20
ByteDance Seed: Seedream 4.0
Official
View source
upstream interface: Seedream 4.0 text to image
Platform
Kyeo AI model configuration
Platform

Kyeo AI currently routes to bytedance/seedream-v4-text-to-image or bytedance/seedream-v4-edit. The workflow selection, parameter limits, controls, and fixed 6-credit charge above come from Kyeo AI's configuration.