Seedream 4.5はTikTokを運営するByteDanceが開発したAI画像生成ツールです。数十億のアジア系ビジュアルデータで訓練されており、自然なポートレート、ファッションコンテンツ、アジア市場向けの商業ビジュアルに優れています。1枚あたりわずか5クレジット（約$0.05）で、大規模な商業制作に最も手頃なAI画像ジェネレーターです。
Seedream 4.5 — ByteDanceのAI画像生成ツール
Seedream 4.5はAIポートレートと商業写真に卓越。アジア系の美学、ECモデル写真。1枚5クレジット、今すぐ無料でお試しください。
Seedream 4.5とは？
Seedream 4.5 — AIポートレート生成ツールの仕様
- 解像度
- 最大 1024×1024
- 生成速度
- 約5〜15秒
- ポートレート品質
- 優秀
- アジア系美学
- 業界最高水準
- 出力形式
- PNG, JPEG
- アスペクト比
- 1:1, 16:9, 9:16, 4:3, 3:4
最安値のAI写真ジェネレーター？1枚あたり$0.05
5 credits per image
At 5 credits per image (~$0.05), Seedream is the cheapest AI image model on our platform. You can generate 200 images for about $10. For e-commerce teams that need hundreds of product images, model shots, and marketing visuals, Seedream makes AI image generation practically free at scale.
商業AIイメージジェネレーター — Seedreamが適している場面
When it shines
Seedream is the best choice for high-volume portrait and lifestyle image generation, especially for Asian markets. At just 5 credits per image, it's the most cost-effective way to produce AI images at scale. Its portrait quality is excellent — natural skin, authentic expressions, proper lighting — and its understanding of Asian beauty standards, fashion aesthetics, and cultural nuances is unmatched. Choose Seedream for e-commerce model shots, beauty/fashion content, social media lifestyle imagery, and any project targeting Chinese, Japanese, or Korean audiences.
When to pick a different model
If you need to edit existing images, Seedream can't do that — use GPT Image 1 or Flux Kontext. If you need readable text in your images (posters, banners, memes), GPT Image 1 is the only reliable option. For character consistency across a series of images, Flux Kontext is purpose-built for that. If you need the highest resolution for print (2048px), Flux is the only option. And while Seedream excels at Asian aesthetics, for Western-style commercial photography, Flux and GPT Image produce more versatile results.
Limitations worth knowing
- No image editing. Seedream is text-to-image only — you can't upload an existing image for editing or modification. For image editing, use GPT Image 1 or Flux Kontext instead.
- No character consistency. Each generation is independent — Seedream can't maintain the same character appearance across multiple images. For brand mascots or character series, Flux Kontext is the right tool.
- Basic text rendering. Seedream can render simple text but frequently produces misspellings or illegible characters. For any image that needs readable text, GPT Image 1 is dramatically better.
Seedream vs GPT Image vs Flux — AI画像生成ツールの比較
| 指標 | seedream | gpt-image | flux |
|---|---|---|---|
| Cost per Image | 5 credits ($0.05) | 20 credits ($0.20) | 10 credits ($0.10) |
| Max Resolution | 1024×1024 | 1024×1024 | 2048×2048 |
| Speed | 5-15s | 10-20s | 5-15s |
| Aspect Ratios | 5 options | 3 options | 4 options |
| Text in Images | Basic | Best (readable) | Good |
| Image Editing | No | Yes | Yes (Kontext) |
| Character Consistency | No | No | Yes |
AIポートレート写真 — 自然な結果を出すSeedreamプロンプト
1
Describe Lighting & Mood
Seedream responds especially well to lighting descriptions. 'Soft window light', 'golden hour', 'neon-lit night' dramatically change the result quality.
Young woman reading a book in a cafe, soft natural window light, warm tones, shallow depth of field, editorial photography
2
Use Fashion & Beauty Terms
Seedream understands fashion vocabulary: 'haute couture', 'street style', 'minimalist chic', 'K-beauty glow'. These terms unlock its aesthetic strengths.
3
Batch Create for Consistency
For e-commerce, use the same prompt structure across products: '[product] on [surface], [lighting], [angle], white background, product photography'. This ensures catalog consistency.
Luxury skincare bottle on marble surface, soft studio lighting, 45-degree angle, clean white background, product photography
よくある質問
他のAI画像モデルを探す
GPT Image 1OpenAI
OpenAI's GPT Image 1 generates photorealistic images with the best text rendering of any AI model. The ultimate DALL-E upgrade — edit images, transfer styles, and create stunning visuals from text.
Flux KontextBlack Forest Labs
Black Forest Labs' Flux Kontext generates stunning images in seconds. Pro for speed (~5s), Max for quality. With built-in character consistency and Kontext image editing.