Seedream 4.5
ByteDance's image model built for work that needs to look real. Cinematic lighting, text that reads correctly, subjects that stay consistent — and a natural-language editor that lets you describe changes instead of drawing masks.
What is Seedream 4.5?
Seedream 4.5 is an image model from ByteDance — the company behind TikTok — available on Visiojoy for both generating and editing images. It sits at rank #10 on the LM Arena global image leaderboard, and it shows in the output: photos look like photos, not like renders.
The model was built with commercial work in mind — product photography, brand content, editorial visuals. It handles the kinds of images that look bad when something is slightly off: lighting that flattens out, faces that drift between shots, or text that comes out mangled.
For editing, you upload an image and describe what to change. The model figures out the rest — no selection tools, no separate masking step.
What changed from 4.0
Flat, even lighting
Dramatic shadows and volumetric depth
Blurry or misspelled text
Sharp, accurate multilingual typography
Characters drift between images
Consistent look across a whole set
Mask-based editing workflow
Natural language — just describe the change
Where Seedream 4.5 stands out
Four things it does noticeably better than most models you've tried.
- Text in your images finally looks right
- Headlines, product labels, signage, multilingual captions — Seedream 4.5 renders them the way you wrote them. Curved text, rotated type, small-print detail — all legible. If you've ever had to fix garbled letters in post, you know how much time this saves.
- Lighting that looks like it came from a camera
- Not flat, overlit, or artificially uniform. Seedream 4.5 adds dramatic shadows, soft volumetric light, and the kind of texture — skin, fabric, glass — that makes images feel like they were shot rather than generated. Works across studio setups, outdoor scenes, and moody interior lighting alike.
- Your characters stay the same across every image
- Generate a set of images featuring the same person, product, or character, and they'll actually look consistent. Same face, same build, same details — whether you're building a product campaign, a story sequence, or a set of social posts that need to feel unified.
- Edit by describing what you want — no masks
- Upload an image and just tell it what to change: swap the background, adjust the outfit, remove an element. Seedream 4.5 figures out where the change should go from your description. No selection tools, no layer masks, no separate editing software.
What's included
What you can do
Text-to-image generation
Describe what you want and get a finished image back.
Image editing
Upload a photo or generated image and describe what to change.
Up to 14 reference images
Combine several source images in a single edit.
Output formats
Eight aspect ratios
1:1 · 4:3 · 3:4 · 16:9 · 9:16 · 2:3 · 3:2 · 21:9
Basic quality (2K) — 7 credits per image
Good for drafts, iteration, and most finished content.
High quality (4K) — 13 credits per image
Maximum detail for large-format and print work.
What people are saying
“I do brand photography for small businesses. Seedream 4.5 is the first AI model where I can hand over a finished product image to a client and they don't ask me to fix the lighting. It just looks like a real shot.”
“The text rendering alone is worth it. I design event posters and I used to have to composite all the type manually after generating the background. Now I just put it in the prompt and it comes out right.”
“We run a small fashion brand. Being able to generate a consistent model across 20 product shots without them looking like different people — that's a genuinely useful thing that didn't exist before.”
Frequently asked questions
What is Seedream 4.5?+
Seedream 4.5 is an AI image model made by ByteDance, available on Visiojoy. You can use it to generate images from text descriptions or edit existing images by describing what you want to change. It's particularly strong at realistic lighting, accurate text rendering inside images, and keeping subjects looking consistent across multiple generations.
Does Seedream 4.5 support image editing?+
Yes. You can upload an existing image and describe what you want to change in plain text — swap a background, adjust clothing, remove an element. Seedream 4.5 applies the edit based on your description without requiring you to use selection tools or masks.
How does Seedream 4.5 compare to Seedream 5 Lite?+
Seedream 4.5 and Seedream 5 Lite are both ByteDance models available on Visiojoy. Seedream 4.5 focuses on photographic realism — cinematic lighting, detailed textures, subject consistency — and costs 7 credits per image at basic quality (2K) or 13 at high quality (4K). Seedream 5 Lite adds reasoning capabilities and real-time web grounding, with basic quality at 6 credits. If you're doing realistic product photography or brand imagery, 4.5 is the stronger choice. If you need complex compositional reasoning or lower-cost volume generation, 5 Lite is worth considering.
What aspect ratios does Seedream 4.5 support?+
Seedream 4.5 supports eight aspect ratios: 1:1 (square), 4:3, 3:4, 16:9 (widescreen), 9:16 (vertical), 2:3, 3:2, and 21:9 (ultra-wide). That covers social media, editorial, advertising, and cinematic formats.
How much does Seedream 4.5 cost?+
Basic quality (2K) costs 7 credits per image and high quality (4K) costs 13. Basic is enough for drafts and most web use; high quality gives you more detail and sharper output for final work. Each run produces one image.
Can Seedream 4.5 generate text inside images?+
Yes, and it's one of the model's genuine strengths. You can include words, phrases, labels, or signs directly in your prompt and they'll appear legibly in the image. This works for English and many other languages, and handles curved, rotated, and small-size text better than most other models.
Does character consistency work across separate generations?+
Yes. When generating a set of images featuring the same character, person, or product, Seedream 4.5 maintains a consistent appearance across the set — same facial features, build, and visual details. This is useful for product campaigns, social series, and any project that needs a coherent visual identity.
Who can use Seedream 4.5?+
Seedream 4.5 is available to any account that has made a purchase — a subscription or a one-time credit pack. New accounts get free credits to try Visiojoy with models such as Seedream 5 Lite before buying.
Try Seedream 4.5 on Visiojoy
Generate from a prompt or upload an image to edit — both available in the same workspace. Seedream 4.5 unlocks with a subscription or a one-time credit pack.