Flux Ultra 1.1 vs Seedream 4.5
Runway, editorial, and outfit-of-the-day content — see how these models compare with real AI-generated outputs.
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Fashion photography lives or dies on fabric realism, flattering proportions, clean skin tones, and lighting that feels intentional—whether you’re producing runway looks, glossy editorial spreads, or quick outfit-of-the-day (OOTD) posts. Flux Ultra 1.1 and Seedream 4.5 are both built to generate high-quality fashion images inside Influencer Studio, but they shine in different parts of the workflow.
Below is a practical comparison focused on the outputs fashion creators care about most: garment texture and drape, accessory fidelity, consistent styling, controllable art direction, and how easy it is to iterate from a “good” frame to a publish-ready fashion image.
Fashion Photography — Side-by-Side Results
Prompt
"A 22–28-year-old woman with shoulder-length wavy dark hair in a simple white tank top, light-wash jeans, and clean sneakers holds her phone slightly above eye level for a casual front-camera selfie, glancing near the lens with a relaxed half-smile mid-walk. Real street setting outside a corner café with a paper coffee cup in her other hand, pedestrians softly blurred behind her, natural late-afternoon sunlight and unedited, everyday phone-camera look."
Feature Comparison
| Feature | Flux Ultra 1.1 | Seedream 4.5 |
|---|---|---|
| Provider | Black Forest Labs | ByteDance |
| Subcategories | text-to-image | text-to-image, image-to-image |
| 1080p / 2k Mode | Yes | Yes |
| 4k Mode | No | No |
| NSFW Rating | Strict | Low |
| Aspect Ratio | 1:1, 16:9, 9:16, 3:4, 4:3, 21:9 | 1:1, 16:9, 9:16, 3:4, 4:3 |
| Starting Price | 16 credits | 16 credits |
Flux Ultra 1.1 Strengths
- Exceptional photorealism for runway and editorial frames, with strong micro-detail in fabrics, stitching, and textures
- Premium “camera-like” lighting and depth that supports high-end fashion aesthetics (studio, street, golden hour)
- Crisp rendering for accessories (bags, jewelry, eyewear) and overall image polish suited to hero shots
- Strong performance when you need a single, standout image with minimal compromise in realism
Seedream 4.5 Strengths
- Image-to-image editing makes it easier to refine an existing fashion shot (adjust outfit details, background, styling) without restarting
- Versatile style range for editorial concepts, lookbooks, and social-first OOTD variations (minimal, streetwear, high fashion)
- High-resolution output that supports cropping for multiple placements (feed, story, thumbnails) from one generation
- Efficient iteration for art direction: quick changes to colorways, silhouettes, locations, and mood while keeping the core concept
Verdict
If your priority is premium, photorealistic fashion imagery—especially runway-style hero frames and editorial “cover-ready” shots—Flux Ultra 1.1 is the stronger pick for maximum detail and a high-end finish.
If your workflow depends on editing and iteration—for example, turning one base look into multiple OOTD posts, refining styling, or art-directing variations without losing momentum—Seedream 4.5 is often the more practical choice. Both cost 16 credits per image, so the decision typically comes down to whether you value top-tier realism (Flux Ultra 1.1) or flexible revision control (Seedream 4.5).
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