Flux Ultra 1.1 vs Seedream 4.5
Film grain, retro aesthetic, and nostalgic filters — see how these models compare with real AI-generated outputs.
Full comparisonCompare Models (select 4)
Vintage & retro visuals live or die by the details: believable film grain, era-appropriate color response, gentle halation, and the kind of imperfections that feel intentional rather than “added on.” On Influencer Studio, Flux Ultra 1.1 and Seedream 4.5 both produce high-quality images at the same per-image cost, but they approach nostalgic aesthetics differently.
Flux Ultra 1.1 leans into premium, photorealistic rendering—great when you want a retro look that still feels like a real photograph. Seedream 4.5 stands out for its editing workflow (image-to-image), making it easier to iterate on a specific vintage reference and dial in grain, tone, and wear while preserving composition.
Which Model Should You Choose?
Short answer: Flux Ultra 1.1 is better for premium photoreal detail, while Seedream 4.5 is better for versatile editing. If you are creating vintage & retro, start with Seedream 4.5 because it costs fewer credits per output and lets you test more directions, then switch to Flux Ultra 1.1 for polished, higher-resolution final assets.
| If you need… | Choose | Why |
|---|---|---|
| Lower-cost exploration and more variants per credit | Seedream 4.5 | Seedream 4.5 costs 16 credits to start, so you can test more directions for less. |
| Polished, ready-to-ship final assets | Flux Ultra 1.1 | Flux Ultra 1.1 produces stronger final-asset polish for campaign-ready output. |
| Readable text in designs, overlays, and packaging | Seedream 4.5 | Seedream 4.5 renders labels and typography more cleanly. |
| Editing and reference-driven iteration | Seedream 4.5 | Seedream 4.5 is more flexible for editing from references or existing outputs. |
| Consistent characters and repeated campaign visuals | Either model | Either model holds character and style consistency better across outputs. |
| Vintage & Retro specifically | Either model | Both are well-suited to vintage & retro; pick by budget vs polish. |
How They Compare, Criterion by Criterion
| Criteria | Flux Ultra 1.1 | Seedream 4.5 | Winner |
|---|---|---|---|
| Realism | ●●●●● | ●●●●○ | Flux Ultra 1.1 |
| Text accuracy | ●●○○○ | ●●●○○ | Seedream 4.5 |
| Editing flexibility | ●●○○○ | ●●●●○ | Seedream 4.5 |
| Cost efficiency | ●●●○○ | ●●●●○ | Seedream 4.5 |
| Final polish | ●●●●● | ●●●●○ | Flux Ultra 1.1 |
| Consistency | ●●●●○ | ●●●●○ | Tie |
| Best first test | ●●●○○ | ●●●●○ | Seedream 4.5 |
How We Compare These Models
Models compared
Flux Ultra 1.1 vs Seedream 4.5
Use case
Vintage & Retro
Flux Ultra 1.1 — best for
premium photoreal detail
Seedream 4.5 — best for
versatile editing
Flux Ultra 1.1 — avoid if
You need editing, text accuracy, or low-cost iteration
Seedream 4.5 — avoid if
You need premium hero-level polish or perfect text
Credits per image (Flux Ultra 1.1)
16 credits
Credits per image (Seedream 4.5)
16 credits
Last updated
June 8, 2026
What the Examples Show
Realism
Flux Ultra 1.1 tends to produce more natural skin texture, lighting, and detail in these outputs.
Text accuracy
Seedream 4.5 renders any labels, overlays, or typography more cleanly.
Commercial usability
Flux Ultra 1.1 is closer to a ready-to-use image asset; Seedream 4.5 is better for concepting.
Recommended next step
Use Seedream 4.5 for first-pass variants, then Flux Ultra 1.1 for final polish.
Vintage & Retro — Side-by-Side Results
Prompt
"A 20s woman with shoulder-length wavy dark hair in a loose vintage band tee and high-waisted light-wash jeans holds her phone slightly above eye level for a casual selfie, glancing near the camera mid-laugh while balancing an iced coffee in her other hand. She’s in a sunlit corner of a cozy neighborhood café by a window with handwritten menu boards in the background, natural morning light hitting her face. Vintage 90s disposable-camera look with film grain, slightly faded colors, warm nostalgic tone, subtle light leak and soft blur like an old printed photo."
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
- Photorealistic vintage results: strong for “shot on film” realism with convincing lighting and texture
- Exceptional micro-detail helps film grain and subtle lens character read naturally (not like a uniform overlay)
- Crisp subject rendering supports retro editorial and catalog-style looks where details must stay intact
- Premium-quality output is well-suited to print-like retro posters, album covers, and lifestyle scenes
Seedream 4.5 Strengths
- Image-to-image editing makes it easier to keep an existing scene while adding nostalgic grading, grain, and wear
- Versatile style range: adapts well across decades (’70s warm tones, ’80s flash, ’90s disposable camera vibes)
- Efficient iteration for “make it more vintage” adjustments without restarting from scratch
- High-resolution output supports retro textures like paper grain, dust, light leaks, and subtle fading
Verdict
If your priority is a highly believable, photorealistic retro image from scratch—where film grain and era cues feel embedded in the scene—Flux Ultra 1.1 is the stronger pick for vintage realism and premium finish.
If your workflow depends on refining a specific look (or matching a reference) through edits—tweaking grain intensity, color cast, fading, and nostalgic artifacts while keeping the same composition—Seedream 4.5 is typically the better choice. With identical pricing (16 credits per image), the decision comes down to whether you need best-in-class “from scratch” realism or faster vintage iteration via editing.
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