Seedream 4.5 Edit: AI Image Editor Online
Bottom line
ByteDance's Seedream 4.5 editor: precise instruction-based edits on multiple images, up to 4K, flat 7 credits. Open the Image Edit tool, select Seedream 4.5 Edit, upload your image, and the exact credit cost appears before the edit runs.
Edits fail in the details — a retouched region that goes soft, an object swap that smears the pixels around it. Seedream 4.5 Edit is built for the opposite outcome: precise, instruction-based editing with output up to 4K, so the modified image holds together under scrutiny instead of betraying where the model touched it. It also accepts multiple input images, letting one edit pull elements or references from several sources at once.
Seedream is ByteDance's image generation family, and this 4.5 edit model — released 2025-12-03 — is a workhorse on VdoBloom: it holds a 4.5 user rating, and it's one of the two engines Auto — Smart Edit's fallback chain can route to. Eight aspect ratios are supported — 1:1, 4:3, 3:4, 16:9, 9:16, 2:3, 3:2 and 21:9 — so edits deliver in cinematic widescreen as readily as vertical social formats. Prompts run up to 3,000 characters.
Its HOT content label signals more permissive filtering than strictly moderated editors, and every edit costs a flat 7 credits, shown before it runs.
What it costs on VdoBloom
A flat 7 credits per edit, no matter how many reference images or which aspect ratio you use. Your 10 free signup credits cover one edit.
Seedream 4.5 Edit vs GPT Image 2 I2I
Seedream 4.5 Edit is flat-rate (7 credits) and natively 4K. GPT Image 2 I2I is resolution-tiered (3/5/8 credits), cheaper at 1K and 2K but pricier at 4K. If most of your edits target the largest output size, Seedream 4.5 Edit's flat pricing is simpler and slightly cheaper; if you frequently want quick 1K drafts, GPT Image 2's tiering saves credits on the drafting pass.
What creators use Seedream 4.5 Edit for
- High-resolution retouching and object replacement where the result must survive 4K delivery or print.
- Multi-image edits that pull a subject, product, or style reference from several source photos into one composition.
- Cinematic 21:9 edits for widescreen key art, alongside standard social and photographic ratios.
How to use Seedream 4.5 Edit on VdoBloom
- 1Open the Image Edit tool and select Seedream 4.5 Edit.
- 2Upload the image(s) to edit and describe the change you want.
- 3Review the credit cost and generate — results appear in your library.
Frequently asked questions
How much does Seedream 4.5 Edit cost?
A flat 7 credits per edit, regardless of aspect ratio or how many reference images you attach.
Is Seedream 4.5 Edit free to try?
Your 10 free signup credits cover one edit with 3 credits left over.
What output resolution does Seedream 4.5 Edit support?
Up to 4K, so edited images can go straight to print, large-format display, or heavy cropping rather than being limited to web sizes.
Can Seedream 4.5 Edit work with multiple input images?
Yes — it accepts multiple images in a single edit, so you can reference a subject from one photo and a style or setting from another while issuing one instruction.
How strict is Seedream 4.5 Edit's content filter?
It carries VdoBloom's HOT label, meaning filtering is more permissive than strictly moderated editors such as GPT Image 1.5 I2I. Platform-level rules still apply, and no explicit content is guaranteed.
Who develops Seedream, and how does 4.5 Edit rank on VdoBloom?
ByteDance. On VdoBloom, 4.5 Edit holds a 4.5 user rating, and it's one of the engines Auto — Smart Edit's fallback chain alternates between.
Is Seedream 4.5 Edit used by Auto — Smart Edit?
Yes, indirectly — Auto's routing alternates between Seedream 5.0 Pro and WAN 2.7 Image by retry, escalating further from there; Seedream 4.5 Edit is available separately as its own model at the same 7-credit flat rate Auto charges.
Seedream 4.5 Edit vs GPT Image 2 I2I — which is cheaper?
At 1K or 2K, GPT Image 2 I2I (3 or 5 credits) is cheaper than Seedream 4.5 Edit's flat 7. At 4K, GPT Image 2 costs more (8 credits). Seedream 4.5 Edit renders up to 4K without a separate resolution selection, which simplifies budgeting if you always want the largest output.
My Seedream 4.5 Edit result didn't match my instruction — what should I try?
Long, blended instructions are more prone to partial misses than short, explicit ones — try splitting a multi-part edit into clearly separated clauses. A fully failed generation is refunded automatically, so it's worth retrying with tighter wording rather than assuming the model can't do the edit.