ByteDance's most affordable AI image model, built specifically for e-commerce and marketing creatives. Strong quality at the lowest cost per image in the market.
Avg quality
7.3/10
Generation speed
7.0/10
Cost efficiency
9.0/10
All images generated at 1080p, 9:16 — raw AI output across 10 niches, same prompts used across models, no post-processing. Just compressed for web optimization.
Lowest cost, commercial-grade quality, and multi-image consistency. Here is where Seedream v4.5 stands out based on real benchmark scores.
Scored 9.0/10 on cost efficiency — the most affordable image model available. Generate massive volumes of ad creatives without watching your budget. Flat pricing regardless of output resolution means no surprise costs at higher quality.
Created by ByteDance specifically for e-commerce and marketing workflows. Product photography, promotional graphics, and brand visuals come out with designer-level composition and accurate materials, lighting, and reflections.
Scored 8.5/10 on composition — its strongest metric. Multi-element layouts, product arrangements, and promotional graphics come out balanced with natural visual hierarchy — exactly what e-commerce banners and marketing collateral need to stop the scroll and deliver a message.
See exactly how Seedream v4.5 performs across the metrics that matter for real ad image production. Total Ad Score is weighted 70% quality, 20% cost, 10% speed — because creative quality drives ROAS more than unit cost.
Generation Speed
7.0/10
Cost Efficiency
9.0/10
Total Ad Score
7.6/10
Independent Elo ratings from head-to-head community voting — complementary to our ad-specific benchmarks.
Elo Rating
1,164
Leaderboard Rank
#12
Votes
6,029
Source: Artificial Analysis · Updated Apr 2026
If you need commercial-grade ad images at the lowest possible cost, Seedream v4.5 is the model to start with. It is the cheapest image model we tested, with flat pricing regardless of resolution. Composition, text rendering, and visual quality are all strong — product shots, marketing banners, and e-commerce visuals come out polished. The weak spot is human faces — for ads with people front-and-center, Nano Banana Pro handles them better.
See how Seedream v4.5 compares head-to-head against other AI image models.
Side-by-side specs, scores, and pricing so you can pick the image model that delivers the best ROI for your ad spend.
| # | Model | AA Elo | Arena Elo | Quality Avg | Speed | Cost Eff. | Total | View |
|---|---|---|---|---|---|---|---|---|
| 1 | GPT Image 2 | — | 1,512 | 9.5 | 7.0 | 7.0 | 8.7 | View Model |
| 2 | Nano Banana Pro | 1,213 | 1,244 | 9.2 | 6.5 | 5.0 | 8.1 | View Model |
| 3 | Nano Banana 2 | 1,263 | 1,270 | 7.8 | 9.0 | 7.0 | 7.8 | View Model |
| 4 | Seedream v4.5 | 1,164 | 1,143 | 7.3 | 7.0 | 9.0 | 7.6 | This page |
Last updated: April 13, 2026
Seedream v4.5 is an AI image generation model from ByteDance, the company behind TikTok. Unlike Google's Nano Banana models which are general-purpose, Seedream was built from the ground up for one use case: commercial and e-commerce creative production.
With a 9.0/10 cost efficiency score and flat pricing regardless of resolution, it is the cheapest image model in our benchmarks. But cheap does not mean low quality — it scored 7.3 avg quality with particular strength in composition (8.5). Product photos, promotional graphics, and marketing visuals come out with the kind of polish you would expect from a purpose-built commercial tool.
The standout feature is multi-image composition: you can upload up to 14 reference images to maintain consistent style, character identity, and brand elements across generated outputs. This is critical for ad campaigns that need a cohesive visual identity — something no other image model handles natively.
Seedream's advantage is the combination of low cost and commercial-grade quality. Here is where that combination creates the most value — and where other models are a better fit.
E-commerce product photography: This is Seedream's home turf. Product shots on clean backgrounds, lifestyle product scenes, 360-degree product views, and packaging visuals all benefit from the model's commercial optimization. Materials, lighting, and reflections look accurate — glass refracts, metal reflects, fabric drapes naturally.
Marketing banners and promotional graphics: Sale announcements, seasonal promotions, and event graphics benefit from Seedream's 8.5 composition score. The model handles multi-element layouts well — product image, headline area, price callout, and CTA can coexist in a balanced composition. Text rendering is weaker (7.0), so add fine typography in post-production rather than expecting Seedream to nail it in-model.
Campaign-scale production: When you need 50+ creatives that all look like they belong to the same campaign, Seedream's multi-image reference feature keeps visual identity consistent. Upload your brand assets, product shots, and style references, then generate variations that maintain the same look across your entire ad set.
Where to use other models: Ads with prominent human faces — Seedream's 6.5 human realism is the lowest of the three image models. Use Nano Banana Pro (9.0) for people-heavy content. When you need the absolute fastest turnaround, Nano Banana 2 generates in 2-6 seconds vs Seedream's 8-14.
Before generating anything, upload your brand assets — product photos, logos, color palette examples, existing ad creatives. Seedream uses up to 14 reference images to maintain visual consistency across all generated outputs. This is the single most valuable step for campaign-level production.
Seedream responds well to commercial language. Describe the scene in marketing terms: "Product hero shot of a matte black water bottle on a gradient background, studio lighting, clean e-commerce product photography, 1:1 square format." Include the intended use case in the prompt for better results.
With the highest cost efficiency score (9.0/10) and no resolution surcharge, budget should never limit your creative volume. Generate 20-30 variations per concept. Test different backgrounds, angles, lighting setups, and compositions. The low cost makes this financially trivial.
Seedream combines generation and editing in a single model. If an image is 80% right, use the editing capabilities to fix specific areas — swap a background, adjust lighting, change a color — rather than regenerating from scratch. This is faster and preserves the elements that already work.
Generate at max resolution (up to 2048x2048) since pricing is flat. Export in the correct aspect ratio for each platform: 1:1 for Instagram/Facebook Feed, 4:5 for portrait, 9:16 for Stories. Upload to your ad manager and run multiple creative variations per ad set.
Seedream v4.5 is an AI image generation model from ByteDance, the company behind TikTok. It is specifically built for commercial and e-commerce creative production. It scored 9.0/10 on cost efficiency — the cheapest of any model we tested — while delivering workable quality (7.3 avg) with particular strength in composition (8.5).
Seedream uses a unified architecture that handles both generation and editing in a single model, reducing compute overhead. ByteDance also applies flat pricing regardless of resolution — no surcharge for higher-res output. The result is the lowest per-image cost in the market without proportionally sacrificing quality.
Seedream is cheaper (9.0 vs 7.0 cost efficiency) with better composition (8.5 vs 8.0). NB2 is faster (9.0 vs 7.0 speed) with better human realism (7.5 vs 6.5) and better visual quality (8.0 vs 7.0). Choose Seedream when cost matters most. Choose NB2 when speed or visual quality matters most.
A unique Seedream feature that lets you upload up to 14 reference images during generation. The model uses these to maintain consistent style, character identity, and brand elements across outputs. This is critical for ad campaigns that need a cohesive look across multiple creatives — something other models cannot do natively.
Reasonably — especially for e-commerce at scale. Seedream scored 7.0/10 on product shots with decent materials, lighting, and reflection accuracy. It was specifically optimized for e-commerce product photography, including 360-degree product views and lifestyle product scenes. For hero-level product shots, Nano Banana Pro (9.5 product shots) is a better choice.
Human realism is the clearest weakness at 6.5/10 — the lowest of the three image models we tested. Faces can look slightly 'plasticky' and complex curved text fails frequently. For ads featuring people prominently, Nano Banana Pro (9.0 human realism) is a better choice.
Yes. Images generated with Seedream v4.5 can be used commercially in paid advertising across all major platforms including TikTok, Meta, Google, Snapchat, and YouTube.
Seedream v4.5 generates images up to 4 megapixels (2048x2048) across flexible aspect ratios. The flat pricing means you pay the same regardless of resolution — no surcharge for higher-res output. This makes it practical to always generate at maximum quality.
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