GPT-Image 1.5 vs Seedream 4.5
Original characters, game characters, and mascots — see how these models compare with real AI-generated outputs.
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Designing original characters for games, branding, and mascots demands consistency, readable silhouettes, and faithful translation of written specs into visual details. On Influencer Studio, GPT-Image 1.5 and Seedream 4.5 both deliver high-quality character art, but they excel in different parts of the workflow.
This comparison focuses on how each model handles character concepting (turnarounds, outfits, props), style control (cartoon to semi-real), and iteration speed—plus how their credit costs typically map to exploration versus final outputs.
Character Design — Side-by-Side Results
Prompt
"A candid phone-camera Instagram story shot of an original influencer character (early 20s, warm brown skin with light freckles, big expressive eyes, chunky micro-bangs with a long high ponytail, tiny nose ring) wearing an oversized mint hoodie, black biker shorts, mismatched pastel socks, and a crossbody sling bag with enamel pins; she’s doing a casual “outfit check” pose with one knee slightly bent and one hand holding an iced coffee, looking near the camera with a relaxed half-smile. Real-world setting: neighborhood café entrance with a chalkboard menu and bike rack behind her, late-afternoon natural light, slight wide-angle selfie distortion and subtle motion blur like a quick TikTok thumbnail. Character-design emphasis: distinctive silhouette (pony-tail arc + oversized hoodie), clear readable shapes, detailed accessories (pins, phone charm, coffee cup sticker), turnaround-ready posture while still feeling like a spontaneous social post."
Feature Comparison
| Feature | GPT-Image 1.5 | Seedream 4.5 |
|---|---|---|
| Provider | OpenAI | 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 | 1:1, 16:9, 9:16, 3:4, 4:3 |
| Starting Price | 8 credits | 16 credits |
GPT-Image 1.5 Strengths
- Strong prompt adherence for translating detailed character briefs (materials, accessories, color palettes) into coherent designs
- High-fidelity rendering that supports crisp costume details, textures, and scene-ready character shots
- Reliable for generating multiple distinct original character concepts from text-only descriptions
- Flexible output across character types (mascots, RPG heroes, sci-fi NPCs) without needing an input image
- Tiered pricing (8/16/32 credits) that can be cost-effective for early sketch exploration and rapid ideation
Seedream 4.5 Strengths
- Image-to-image editing makes it easy to iterate on an existing character (swap outfit, adjust face, refine logo/mascot features) while preserving identity
- High-resolution output suited for presentation boards, key art, and polished mascot renders
- Versatile style range for character pipelines (anime, cartoon mascot, semi-real concept art) with strong visual consistency when refining
- Efficient for controlled variations (colorways, accessories, expressions) using an established base image
- Simple per-image pricing (16 credits) that’s predictable for refinement-heavy workflows
Verdict
Choose GPT-Image 1.5 when you’re starting from a written brief and need strong prompt adherence to generate original character concepts quickly—especially if you want to explore many directions at a lower entry cost (8 credits on low).
Choose Seedream 4.5 when you already have a character you like and need iterative editing to lock the design: refining proportions, updating outfits, producing consistent variations, and exporting high-resolution finals at a straightforward 16 credits per image.
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