Seedream 4.5 — AI Image Generator
Seedream 4.5 is available on Artifio.ai as part of our unified AI workspace. Powered by bytedance. Starting at about $0.035 per generation.
Start with Seedream 4.5
Seedream 4.5 pricing
These prices are calculated from the current model settings. Each row describes the configuration used for that price.
| Settings | Per generation |
|---|---|
| Default settings | $0.035 |
Review the estimate for your selected settings before submitting. Compare model pricing
About Seedream 4.5
Seedream 4.5 is ByteDance Seed's scaled-up follow-on to Seedream 4.0, arriving between the 4.0 release of September 2025 and the Seedream 5.0 line that began shipping in February 2026. ByteDance describes it as an all-round improvement achieved by scaling the model, and its MagicBench comparison charts show gains over 4.0 in prompt adherence, image-text alignment, and aesthetics.
This page covers the text-to-image mode. The version's most advertised upgrade is typography: ByteDance singles out dense text rendering as a capability it pushed further in 4.5, aimed at professional visual creatives that need paragraphs of small, correct text inside the image. Artifio offers it in the same pay-per-generation workspace as 100+ other models.
Features
- Text-to-image generation with enhanced typography and dense text rendering, the version's headline gain over 4.0.
- Improved prompt adherence and image-text alignment versus Seedream 4.0 on ByteDance's MagicBench evaluation.
- Higher aesthetics scores than 4.0 on the same evaluation.
- Built on the 4.x unified architecture, so the same model also handles editing and multi-image work.
- Rated on both major public arenas as of July 2026: Elo 1163 (rank 28) on Artificial Analysis and 1147 (rank 29) on the Arena text-to-image leaderboard.
What people use it for
- Layouts heavy with small text, such as menus, flyers, and information-dense promotional graphics.
- Brand visuals where prompt adherence matters more than raw speed.
- Professional creative work that needs consistent, high-fidelity output across a series of prompts.
- Replacing Seedream 4.0 in pipelines where its typography or alignment fell short.
Reported strengths
- Dense text and typography rendering is among the best-documented abilities in the family.
- Measured gains over 4.0 on prompt adherence, alignment, and aesthetics in ByteDance's published comparisons.
- High-consistency, high-fidelity output is the version's stated design target, and its sibling editing mode holds ByteDance's top score on the public editing arena.
Reported limitations
- On the public text-to-image arenas it actually scores below Seedream 4.0 (Elo 1163 versus 1188 on Artificial Analysis as of July 2026), despite winning ByteDance's internal comparisons.
- ByteDance published no dedicated technical report or release post for 4.5; the official page offers comparison charts but no hard specs such as resolution, speed, or release date.
- Within months, ByteDance's own Seedream 5.0 Lite claimed a higher MagicArena Elo, so 4.5 held flagship status only briefly.
Sources
- Seedream 4.5 (ByteDance Seed)
- Text to Image Leaderboard (Artificial Analysis)
- Text-to-Image Leaderboard (Arena Intelligence)
- Introducing Seedream 5.0 Lite (ByteDance Seed)
What Seedream 4.5 is good at
- The strongest editorial-photography aesthetic in our battery: its portrait came back as a magazine-grade extreme close-up with superb skin and hand detail and atmospheric background bokeh.
- Typography is clean and literal — our art-deco sign test produced crisp metallic letterforms with every word correct, framed as exactly the sign we asked for.
- Confident, opinionated composition: it consistently picks a bolder crop and framing than rivals, which gives you striking results without prompt engineering.
Where Seedream 4.5 falls down
- That same opinionated framing breaks explicit briefs: told to keep both faces in focus in our handshake test, it chose an over-the-shoulder composition that hides one face entirely.
- Poses can look contrived on close inspection — our portrait hooked the subject's fingers over a rail at face height, a striking but unnatural gesture.
- Color interpretation is literal-minded in reverse: 'Golden Harvest' tomatoes came back red, ignoring the color cue embedded in the name.
Best for
- Editorial and magazine-style photography
- Striking single-subject shots
- Clean signage
Sample outputs
Generated on Artifio with Seedream 4.5. Each sample shows the exact prompt used.
Seedream 4.5 FAQ
What is Seedream 4.5?
Seedream 4.5 is an AI model (prompt to image) available on Artifio.ai through bytedance. You can run it in our workspace from a single shared wallet and download your outputs.
How much does Seedream 4.5 cost on Artifio?
Seedream 4.5 has a starting estimate of $0.035 per generation on Artifio.ai. Review the estimate for your settings in the workspace before confirming. Usage-billed models reconcile the final charge after generation.
How do I use Seedream 4.5 on Artifio?
Click Generate Now to open the workspace at /create/seedream-4-5-text-to-image. Fill in the form fields, review the live cost estimate, and run your generation.
What kind of outputs does Seedream 4.5 produce?
Seedream 4.5 is configured for prompt to image workflows in the image category. See the technical parameters below for supported inputs and options.
Can I try Seedream 4.5 for free?
Sign up free, top up your wallet from $1, and you can run Seedream 4.5 pay-as-you-go without a separate subscription for this model.
Try Seedream 4.5 on Artifio
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