image model · by ByteDance
Seedream 4.5 AI Image Generator
Generate cinematic 4-megapixel images with Seedream 4.5 - ByteDance's next-generation visual model that unifies text-to-image generation and editing in a single architecture. Strong spatial reasoning, exceptional text rendering, and support for up to 14 reference images for the kind of multi-image composition that production teams need.
Generated with Seedream 4.5
A handful of Seedream 4.5 samples generated inside Fliki. No edits, no post.
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What Seedream 4.5 delivers
Unified generation and editing
Seedream 4.5 consolidates text-to-image and image-editing into a single model. No switching endpoints; no managing separate parameter schemas. Generate a base, edit it, regenerate with references - all in one flow.
4-megapixel resolution
Generate and edit images up to 2048x2048 pixels with flexible aspect ratios. Resolution headroom suitable for paid social, blog headers, e-commerce, and print delivery.
Multi-image references (up to 14)
Seedream 4.5 supports up to 14 reference images simultaneously, computing feature maps across all of them to triangulate identity-critical details. That's notably more than most competing flagship models.
Exceptional text rendering
ByteDance specifically engineered Seedream 4.5 around in-image typography. Multi-line text layouts, package labels, fine print, infographics, posters, and brand mockups all render with high accuracy.
Cinematic aesthetics
Strong spatial reasoning and natural lighting give Seedream 4.5 a cinematic look without manual color grading. Skin, fabric, glass, and reflective surfaces all render believably even in low-light scenes.
Strong character consistency
Faces, wardrobes, and product details stay locked across reference-driven generations. Seedream 4.5 is a practical choice for storyboards, comics, and any project with recurring characters.
Inpainting and outpainting
Beyond standard editing, Seedream 4.5 supports inpainting (filling specific regions), outpainting (extending image edges), and object replacement - the full editing toolkit, not just instruction-based modifications.
Pairs with Fliki's video models
Use Seedream 4.5 for stills, then extend into motion using Fliki's video models including the related Seedance 2.0 and Seedance Pro Fast from the same ByteDance family.
Knowledge-grounded generation
ByteDance Seed trained Seedream 4.5 on a knowledge-augmented corpus, so prompts referencing real landmarks, scientific concepts, historical scenes, or factual diagrams render with subject accuracy instead of plausible-looking guesses. That's a meaningful difference for educational content, explainers, and reference-driven creative.
How it works
How to generate an image with Seedream 4.5
Seedream 4.5 runs inside Fliki's standard image generator. Here's the six-step flow.
Write your prompt
Seedream 4.5 is sensitive to prompt structure - earlier concepts get more weight. Use 30-100 words covering subject, style, composition, lighting, and any text in quotes.
Select Seedream 4.5 as your model
Open Fliki's model selector and choose Seedream 4.5. Your prompt routes to ByteDance's unified text-to-image and editing model.
Pick your aspect ratio
Choose 1:1, 16:9, 9:16, 4:3, or 3:4. Seedream 4.5 supports flexible aspect ratios with native composition.
Add reference images (optional)
Upload up to 14 reference images for multi-image composition or character consistency. This is one of Seedream 4.5's strongest workflows.
Set the resolution
Up to 4 megapixels. Use lower resolutions for fast iteration; bump to 4MP for final delivery.
Generate
Hit Generate. Seedream 4.5 is paid-only on Fliki - upgrade your plan to access it.
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Seedream 4.5 FAQ
Frequently asked questions
Everything you need to know about generating images with Seedream 4.5 inside Fliki.
What is Seedream 4.5?
Seedream 4.5 is ByteDance's unified text-to-image generation and editing model, released in December 2025. It produces images up to 4 megapixels, supports up to 14 reference images, and excels at text rendering inside images.
Is Seedream 4.5 free on Fliki?
No. Only Z Image Turbo and Flux 2 Klein are on Fliki's free tier. Seedream 4.5 requires a paid subscription.
How many reference images does Seedream 4.5 accept?
Up to 14 reference images per generation - more than most flagship models. The architecture computes feature maps across all references to preserve identity, lighting, and color.
What resolutions does Seedream 4.5 support?
Up to 4 megapixels (2048x2048) with flexible dimensions and standard aspect ratios. Smaller resolutions are available for faster iteration.
How does Seedream 4.5 differ from Seedream 4.0?
Seedream 4.5 has improved prompt adherence, alignment, and aesthetics over 4.0, plus a unified generation-and-editing architecture instead of separate models. It also supports more reference images and stronger text rendering.
Does Seedream 4.5 support inpainting and outpainting?
Yes. Beyond instruction-based editing, Seedream 4.5 supports inpainting (filling specific regions), outpainting (extending edges), and object replacement.
Still curious?
Try Fliki free in your browser, no credit card required.
Start freeWho built Seedream 4.5?
ByteDance's Seed team - the same team behind the Seedance video models. On Fliki, you can pair Seedream 4.5 stills with Seedance 2.0 or Seedance Pro Fast video for a fully integrated ByteDance creative pipeline.
How does Seedream 4.5 compare to FLUX 2?
Both are top-tier paid models. Seedream 4.5 supports more reference images (14 vs 10) and is especially strong on text rendering and character consistency. FLUX 2 leads on photorealism, exact color control, and multi-reference brand work. Pick per project.
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