Overall

The report below details how Teeinblue’s Gen AI Effect lets merchants transform customer photos into artworks in specific styles. It compares three models—OpenAI’s GPT-image-1, and Black Forest Labs’ Flux Kontext Pro and Flux Kontext Max. GPT-image-1 offers strong creativity and stylistic rendering but tends to alter more of the original details, whereas the two Flux variants prioritize preserving the composition and subject identity, differing mainly in price and prompt adherence.

Comparison in details

You can see some comparison photos in detail in the Google Drive link here.

Style transfer

Prompt demo:

Transform into an 18th-century Rococo/Baroque royal portrait oil painting.

turn this image into the style of lego movie and also make the background looks like in the movie

Create an image in a detailed anime aesthetic: expressive eyes, smooth cel-shaded coloring, and clean linework. Emphasize emotion and character presence, with a sense of motion or atmosphere typical of anime scenes.

Prompt Understanding

Prompt demo:

Repaint this image in Studio Ghibli style; preserve the original composition, subject identity, pose, and proportions. No text or logos.

Repaint the input photo into a monochrome graphite pencil portrait on textured cold-press paper. Preserve the subject’s pose and framing. Fine cross-hatching and soft smudge shading; loose oval scribble vignette that fades to white edges; visible paper grain; crisp facial details (eyes, lips, skin pores). No color, no extra elements, no logo, no text.

Repaint the provided portrait into a Grand-Theft-Auto-inspired poster.
Keep the person’s identity and pose
Comic/cel-shaded look, bold black outlines, flat color blocks, soft airbrushed highlights, subtle halftone, high contrast.
Background: Los Angeles–like skyline with palms and freeway, distant helicopter silhouette and sports car shape, teal–orange gradient sky.
Crisp vector-like edges, slight paper texture.

Character Consistency

Prompt demo:

turn this image into Disney style and also make the background looks like in the movie

turn this into Simpson style and also make the background looks like in the movie

Turn this image into a watercolor. Use organic textures on watercolor paper. The result feels like an elegant hand-drawn illustration with a serene, gentle vibe.

Generated speed

Conclusion

Recommendation

Quick picks (Medium 1024×1024)

• Most cost-efficient (Medium): Flux Kontext Pro
• Complex prompts / many constraints: GPT-image-1 (Medium)
• Fastest / best throughput: Flux Kontext Pro
• Most faithful to target style (LEGO/Disney/Ghibli…): GPT-image-1 (Medium)
• Best at preserving subject/face & composition while restyling: Flux Kontext Max
• Controlled edits (change outfit/background, keep identity): Flux Kontext Max → Flux Pro
• Lowest risk of unwanted additions/changes: Flux Pro/Max
• “Hero” creatives (eye-catching, stylized visuals): GPT-image-1 (Medium)

One-screen decision guide

• Style fidelity vs. identity preservation?
• • Prioritize style → GPT-image-1 (Medium)
  • Prioritize identity → Flux Kontext Max
  • Need budget + speed with decent style → Flux Kontext Pro
• Iterative, multi-step edits on the same subject? → Flux Kontext Max (Pro if cost/scale matters)
• High-volume batches / lowest latency? → Flux Kontext Pro
• Premium visuals for marketing banners/thumbnails? → GPT-image-1 (Medium) (choose Max only if you must lock the face/subject)

Practical notes

• GPT-image-1 (Medium): top style adherence and creative rendering, but more likely to alter original details.
• Flux Kontext Pro/Max: stronger identity/composition retention; Max adheres to prompts better than Pro and is the safer pick for precise, controlled img2img.

Updated on: 27/08/2025