Flux Ultra 1.1 vs Grok Imagine
Close-up headshots and environmental portraits — see how these models compare with real AI-generated outputs.
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For portrait work in Influencer Studio—whether you’re crafting close-up headshots or environmental portraits—the right model depends on how much you prioritize micro-detail, realism, and control versus speed, experimentation, and cost per render.
Below is a portrait-focused comparison of Flux Ultra 1.1 and Grok Imagine, covering facial detail, skin texture, hair rendering, lighting, background integration, and overall consistency for people-centric images.
Portrait — Side-by-Side Results
Prompt
"Portrait photo of a 20s woman with shoulder-length wavy dark hair in a loose beige sweater and simple gold hoops, holding an iced coffee and looking just past the phone camera with a relaxed half-smile like an Instagram story. She’s seated by a café window with soft natural morning light on her face, background customers and street scene blurred into creamy bokeh (shallow depth of field, 85mm lens feel). Candid, slightly imperfect framing with a hand in the foreground and a tote bag on the chair, authentic everyday vibe."
Feature Comparison
| Feature | Flux Ultra 1.1 | Grok Imagine |
|---|---|---|
| Provider | Black Forest Labs | xAI |
| 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, 21:9 | 1:1, 16:9, 9:16, 3:4, 4:3 |
| Starting Price | 16 credits | 4 credits |
Flux Ultra 1.1 Strengths
- Exceptional micro-detail for close-up headshots (skin texture, eyelashes, hair strands, fabric weave)
- High-end photorealistic finish that suits beauty, editorial, and premium brand portraits
- Strong lighting realism and tonal transitions (natural highlights, soft shadows, believable speculars)
- Crisp output that holds up well to cropping and tight framing without falling apart
Grok Imagine Strengths
- Cost-efficient for portrait iteration (more variations per budget at 4 credits/image)
- Strong creative range for environmental portraits (interesting scenes, styling, and compositions)
- Image-to-image support for refining an existing portrait concept or look
- High-detail results with flexible aesthetics—useful for moodboarding and rapid exploration
Verdict
Choose Flux Ultra 1.1 when your portrait needs to look premium and camera-real—especially for tight headshots where skin, eyes, and hair must withstand scrutiny. It’s the better fit for final selects, hero images, and portraits intended for large-format or heavy cropping.
Choose Grok Imagine when you want to explore more looks quickly, iterate on styling and environments, or leverage image-to-image to steer a portrait toward a specific vibe. For many portrait concepts—especially environmental setups—it delivers strong results at a fraction of the per-image cost.
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