How do you generate product images with GPT Image 2, Nano Banana, or Seedream API?
Updated: 2026-07-05
Product image generation needs visual quality, text accuracy, brand consistency, speed, and cost control.
Short answer
Write the product positioning and visual requirements first, then choose an image model. Use GPT Image 2 for high-quality visuals, Nano Banana for fast iteration, and Seedream for style exploration.
Steps
- Define product, audience, platform size, and use case.
- Write a prompt with subject, background, lighting, material, layout, and text needs.
- Generate several directions.
- Refine the selected direction.
- Use task IDs to check async results when needed.
Recommended models
- GPT Image 2 for high-quality images.
- Nano Banana for fast image creation and editing.
- Seedream for product visuals and style variants.
Cost and reliability notes
- Test composition at lower resolution first.
- Do not generate too many similar variants.
- Save prompts that work well.
How to do it with lizh.ai
Create an API key in lizh.ai and use it as a Bearer token in clients that support an OpenAI-compatible API.
Use Base URL: https://lizh.ai/v1