Seedream 4.0vsSeedream 4.5
Both image models, compared at each maker’s own API list prices. Every figure links to its source.
Where each stands among all scored models
Each line runs from the lowest to the highest score on the board; the tick is the median.
- Seedream 4.0
- Seedream 4.5
Key differences
ImageMaker’s official API · ap-southeast-1 · USD
$0.030 / image Pricing--ModelArk-Byteplus · as of Nov 1, 2026
$0.040 / image Pricing--ModelArk-Byteplus · as of Nov 1, 2026
These differences use verified vendor specifications or each maker’s official API on the same region, currency, meter and billing conditions. Different conditions remain side by side in the full table; they do not establish which model is cheaper. Declared features describe support, not measured quality or a recommendation. Missing evidence does not mean a feature is unsupported.
Full comparison
| Seedream 4.0 ByteDance Seed | Seedream 4.5 ByteDance Seed | |
|---|---|---|
| Overview | ||
| Released | Sep 9, 2025 | Dec 3, 2025 |
| Specs | ||
| Input modalities | Text, Image | Text, Image |
| Output modalities | Image | Image |
| Max resolution | 6240 × 5504 | 6240 × 5504 |
| Editing | ||
| Reference images | 14 | 14 |
| Pricing | ||
| Price per image | $0.030 | $0.040 |
| Cited scores | ||
| LMArena Text-to-Image | 1,139 2K thinking budget | 1,148 |
| LMArena Image Edit | 1,267 2K thinking budget | 1,303 |
Headline prices may come from different channels, regions or tiers. Check each source before choosing a model; missing facts stay blank.
Model details and sources
- Seedream 4.0 → Available
- Seedream 4.5 → Available
Cited scores
- LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · LMArena leaderboard dataset (Hugging Face) · CC BY 4.0 · as of Nov 4, 2026