E-commerce and product teams
Build catalog, lifestyle, packaging, and campaign variations while using product and scene references to preserve important visual details.
Independent tool overview
Seedream 4.5 at a glance
Seedream 4.5 is ByteDance's image generation and editing model for 4K visual production, multi-reference composition, consistent subjects, and text-heavy creative work. It remains available through BytePlus ModelArk, although Seedream 5.0 Lite and Pro are now the newer generation.
Visit the official Seedream 4.5 site ↗
- Developer
- ByteDance Seed
- Model ID
- seedream-4-5-251128
- Core modes
- Text-to-image and image editing
- Maximum output
- 4K
- Reference images
- Up to 10
- Current status
- Available; newer 5.0 models exist
Overview
What Seedream 4.5 is
Seedream 4.5 combines text-to-image generation with single-image and multi-image editing. Its strongest fit is production work that needs to carry a subject, product, style, lighting, or layout across several references instead of generating a disconnected one-off image.
ByteDance positioned version 4.5 as a precision upgrade over Seedream 4.0. The official release highlights sharper small text and faces, stronger instruction following, more reliable spatial structure, and multi-image fusion with as many as 10 reference images.
This is still an available model, not the latest Seedream release. Seedream 5.0 Lite adds deeper multimodal reasoning and optional real-time search, while Seedream 5.0 Pro is ByteDance's newer professional model for high-density information design, grounded editing, and multilingual production.
Use cases
Who Seedream 4.5 is best for
The strongest fit depends on the job you need the product to complete, not the size of its feature list.
Brand and marketing designers
Create posters, key visuals, logos, invitations, and text-heavy layouts where typography and composition matter.
Creative application developers
Add generation, editing, reference-based composition, or multi-image output to an application through BytePlus ModelArk.
Storyboard and concept artists
Generate related frames, character variations, and style-consistent concept sets from multiple visual references.
Capabilities
Core Seedream 4.5 features
Unified generation and editing
Use natural-language prompts for new images or combine prompts with one or more source images for additions, removals, replacements, and transformations.
Multi-reference composition
Pull subjects, products, environments, poses, or styles from as many as 10 reference images and specify the role of each input.
Reference consistency
Preserve recognizable subject traits, facial details, lighting, color tone, product materials, and other reference characteristics across edits.
Typography and layout
Generate posters, brand visuals, product pages, and other dense layouts with improved small-text rendering and composition.
4K image output
Create high-resolution images up to 4K, with BytePlus stating that its flat-rate model does not add a separate 4K surcharge.
Multi-image sequences
Generate a related set of outputs for storyboards, comics, product systems, emoji packs, or other work that benefits from a cohesive visual identity.
Process
How the Seedream 4.5 workflow works
Step 1
Choose the access route
Use BytePlus ModelArk for the global API offering, or a supported ByteDance platform where the model is available in your region.
Step 2
Define the deliverable
State whether the output is a poster, product image, storyboard, logo, edit, or image set, along with the desired aspect ratio and visual style.
Step 3
Add and label references
Upload the source images and tell the model exactly which character, product, material, composition, or style to borrow from each one.
Step 4
Protect fixed elements
Name the elements that must remain unchanged and use direct, unambiguous instructions for the region or object that should be edited.
Step 5
Review the output
Check spelling, small text, faces, hands, brand assets, product details, and consistency across every generated variation before publishing.
Step 6
Compare with Seedream 5
Test a newer Seedream 5 model when the project needs stronger reasoning, current-information search, grounded edits, or more advanced multilingual layouts.
Cost
Seedream 4.5 pricing and free plan
Seedream 4.5 is usage-based through ModelArk. BytePlus currently advertises 200 free images for eligible new users; its launch materials describe flat per-image pricing with no added 4K fee. The public Volcengine Ark product table lists Doubao-Seedream-4.5 at ¥0.25 per image. Availability, currency, taxes, and commercial terms vary by platform and region.
BytePlus free quota
200 images free
A starter quota currently promoted for eligible new BytePlus users.
- No credit card is advertised as required to start
- The listed free quota does not expire
- Eligibility and the offer are subject to change
BytePlus ModelArk API
Usage-based
The global enterprise access route, with account and region-specific billing shown in ModelArk.
- Flat-rate image pricing
- No separate surcharge for 4K output
- Check the signed-in console for the exact regional rate
Volcengine Ark
¥0.25 per image
The current published mainland China product-table rate for Doubao-Seedream-4.5.
- Billed per generated image
- Separate regional account may be required
- Taxes and enterprise discounts may change the effective price
Pricing checked . Check current pricing at the source ↗
Assessment
Seedream 4.5 strengths and limitations
Where it stands out
- Handles generation and editing in one model
- Supports up to 10 reference images for complex compositions
- Strong official emphasis on subject, product, lighting, and color consistency
- Improved small-text, face, poster, and logo rendering over Seedream 4.0
- Supports cohesive multi-image sets and 4K output
- Published API access through BytePlus ModelArk
What to consider
- Seedream 5.0 Lite and Pro are newer and outperform 4.5 in areas such as reasoning, editing response, consistency, and professional information design
- ByteDance's MagicBench comparisons are vendor-run rather than independent evaluations
- Generated copy, faces, hands, logos, and product details still require human quality control
- Exact access, pricing, free quotas, and data terms differ between BytePlus, Volcengine, and other platforms
- Using customer, product, or identity reference images requires appropriate rights and careful privacy review
Compare
Seedream 4.5 alternatives
The right alternative depends on the specific output, workflow, controls and budget your project requires.
Design
Seedream 5.0 Pro
Choose ByteDance's newer professional model for high-density infographics, grounded precision edits, stronger reasoning, and broader multilingual production.
Explore Seedream 5.0 Pro →Design
Qwen-Image-3.0
Consider Alibaba's newer image model when long prompts and text-heavy visual generation are central to the workflow.
Explore Qwen-Image-3.0 →Content Creator
Nano Banana 2
Consider Google's fast image generation and editing model when Gemini integration and high-throughput production are more important.
Explore Nano Banana 2 →Questions
Seedream 4.5 FAQs
What is Seedream 4.5?
Seedream 4.5 is a ByteDance Seed image model that supports text-to-image generation, image editing, reference-based creation, multi-image composition, and related image sequences at up to 4K resolution.
Is Seedream 4.5 still available?
Yes. ByteDance still lists Seedream 4.5, and BytePlus ModelArk continues to document and promote API access. It is no longer the newest version because Seedream 5.0 Lite and Seedream 5.0 Pro have since launched.
How many reference images can Seedream 4.5 use?
BytePlus says Seedream 4.5 can work with up to 10 reference images for multi-image fusion. Clear prompts should identify what the model needs to take from each image.
How much does Seedream 4.5 cost?
BytePlus currently promotes 200 free images for eligible new users and usage-based API billing after that. Volcengine's public Ark table lists Doubao-Seedream-4.5 at ¥0.25 per image; global ModelArk pricing can vary by account and region.
Should I use Seedream 4.5 or Seedream 5?
Seedream 4.5 remains useful for 4K generation, multi-reference composition, and conventional editing. Start with Seedream 5.0 Lite or Pro when you need newer reasoning, search-assisted creation, grounded editing, high-density information design, or advanced multilingual output.
Bottom line
Our Seedream 4.5 verdict
Seedream 4.5 remains a capable API model for teams that need 4K output, multi-reference control, consistent products or characters, and text-heavy campaign assets. It is now best viewed as a proven previous-generation option: compare cost and output quality with Seedream 5 before committing a new production workflow.
Visit Seedream 4.5 website ↗Similar Content Creator Tools
View all Content Creator AI tools →
Kling O1
Kling O1 - Kling's creative engine with multimodal understanding and video editing via text, image, and video prompts
Kling 2.6
Kling 2.6 - Kling's new AI video model with native audio capabilities
Runway Gen-4.5
Runway Gen-4.5 - Runway's new top-rated video model that blends cinematic and realistic outputs, precise control, and speed.
VibeVoice
VibeVoice - Microsoft's open-source, small text-to-speech model that offers real-time streaming and long-form speech generation that can handle as long as 90 minutes of speaking and 4 distinct voices.
AI training for the future of work.
Get access to all our AI courses, hundreds of real-world AI use cases, live expert-led workshops, an exclusive network of AI early adopters, and more.
AI Courses
Get unlimited access to all of our current & upcoming industry-specific AI courses for the duration of your subscription.
Daily Guides
To keep up with the rapid pace of AI, our team publishes AI implementation guides daily. Our library contains 300+ practical use cases to automate real-world work.
Workshops
Join weekly, live, interactive sessions with industry leaders who are at the forefront of AI for hands-on implementation guidance and exclusive insights.
Community
Network with an exclusive community of AI-first professionals who are working smarter with AI. Learn how early adopters are using AI in their work and businesses.