How do I improve face quality?

If the model's face is blurry or distorted, please check the following.

1. Cause: Differences in model specifications and optimization

• Nano Banana: It has limitations in precisely rendering facial features and skin texture. In particular, image quality degradation becomes more noticeable with repeated edits.

• Flux 2 series (Pro/Max): This model is optimized for generating high-resolution photorealistic images. With billions of parameters, it delicately depicts a person’s eyes, eyelashes, and even skin pores.

2. Solution

2-1. Use an upscaler

26.04.29: Upscaler

2-2. Use the Flux 2 model + facial quality enhancement prompts

After switching the model to Flux 2 Pro or Max, try adding the following 'face detail-related keywords' to your prompt. The Flux 2 engine removes the AI-like feel when describing "skin texture" and the "depth of the eyes," and converts it to photorealistic image quality.

Edit target	Recommended prompt (Copy & Paste)
Enhance facial detail (sharp editorial look)	Hyper-realistic skin texture with visible fine pores and natural imperfections, avoiding any airbrushed look, super-sharp focus on the eyes with clear catchlights, deep contrast and cinematic clarity in facial features, high-fidelity 8k resolution.
Maximize natural facial sheen (natural feel)	Facial features rendered with extreme clarity, showcasing authentic skin luster and natural fine textures, diffused and soft lighting effects across the face to ensure a lifelike look, high-definition resolution without over-processing.

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🔗 Reference link

• Flux 2 Pro vs Nano Banana Pro