Flux Ultra 1.1 vs GPT-Image 1.5
Original characters, game characters, and mascots — see how these models compare with real AI-generated outputs.
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Designing standout characters on Influencer Studio often comes down to two priorities: visual quality (materials, lighting, micro-detail) and creative control (silhouette, outfit accuracy, and repeatable features). Flux Ultra 1.1 and GPT-Image 1.5 both generate high-quality character art from text prompts, but they excel in different parts of the character design workflow.
Below is a practical comparison for original characters, game-ready concepts, and mascot-style designs—covering fidelity, prompt adherence, iteration speed, and how their credit pricing maps to typical character design tasks.
Character Design — Side-by-Side Results
Prompt
"A candid phone-camera selfie of an original influencer character (mid-20s, warm brown skin with a tiny star-shaped beauty mark under one eye, big round glasses, long teal micro-braids in a high ponytail) wearing an oversized cream hoodie, biker shorts, and chunky sneakers, looking slightly past the lens with a relaxed half-smile while holding an iced matcha. Real café setting with messy tabletop (laptop stickers, lipstick, keys) and morning window light; character-design emphasis with a clear silhouette, distinctive proportions (slightly oversized hoodie sleeves, compact athletic build), and outfit details readable like a turnaround-ready concept sheet, but framed like an authentic Instagram story."
Feature Comparison
| Feature | Flux Ultra 1.1 | GPT-Image 1.5 |
|---|---|---|
| Provider | Black Forest Labs | OpenAI |
| Subcategories | text-to-image | text-to-image |
| 1080p / 2k Mode | Yes | Yes |
| 4k Mode | No | No |
| NSFW Rating | Strict | Strict |
| 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 | 8 credits |
Flux Ultra 1.1 Strengths
- Exceptional micro-detail for character close-ups (skin, fabric weave, armor scratches, hair strands)
- Photorealistic character rendering that works well for cinematic hero shots and realistic mascots
- Premium-looking lighting and materials that elevate “key art” style character posters
- Strong option when you need a single, highly polished character image rather than many quick variations
GPT-Image 1.5 Strengths
- Strong prompt adherence for specific character requirements (colors, clothing items, accessories, pose cues)
- Versatile output across styles—useful for switching between game concept art, clean mascot looks, and detailed scenes
- Flexible quality tiers (8/16/32 credits) that support rapid iteration early and higher fidelity for finals
- Good choice for generating multiple consistent variations of a character concept (outfit swaps, role variants, prop changes)
Verdict
Choose Flux Ultra 1.1 when your priority is premium, photorealistic character presentation—especially for final “hero” renders, cinematic key art, or realistic mascot imagery where surface detail and lighting polish matter most. At 16 credits per image, it’s straightforward for final-output workflows.
Choose GPT-Image 1.5 when you need tighter control over character specs and more iteration options. Its tiered pricing is helpful for character exploration (low) and stepping up to more refined outputs (medium/high) once the design is locked. For game character pipelines that require many prompt-accurate variations, it’s often the more flexible choice.
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