Best AI Image Generation APIs
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HiAPI gives developers one API surface for multiple AI image generation models. Use this page to compare the best image APIs for Chinese text rendering, photorealistic product visuals, chat-compatible prompts, and cost-aware production workloads.
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Quick comparison
Section titled “Quick comparison”| Model | Best for | Endpoint | Notes |
|---|---|---|---|
| Qwen Image 2.0 API | Chinese text rendering and lower-cost generation | /v1/images/generations | Uses * in size values, such as 2048*2048 |
| GPT Image 2 API | Long prompts and chat-compatible image workflows | /v1/chat/completions | Returns image content through Chat Completions |
| FLUX 1.1 Pro API | Photorealistic product and ad visuals | /v1/images/generations | Strong choice for commercial imagery |
| GPT Image 1.5 | Layout-heavy assets and text rendering | /v1/images/generations | Useful for structured visual assets |
Which image API should I choose?
Section titled “Which image API should I choose?”Choose Qwen Image 2.0 when Chinese text rendering, social graphics, and cost control matter. Choose GPT Image 2 when your app already uses Chat Completions and your prompts need rich creative direction. Choose FLUX 1.1 Pro when photorealism and commercial image quality are the priority.
For production use, start with one low-cost model for prompt iteration and keep a premium model available for final assets. HiAPI lets you compare these models without rebuilding authentication, billing, or request routing for each provider.
Pricing
Section titled “Pricing”Current pricing is maintained on HiAPI Pricing. The most common image cost drivers are model choice, output size, and request volume.
Example request
Section titled “Example request”curl -X POST https://api.hiapi.ai/v1/images/generations \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "qwen-image-2.0", "prompt": "A premium ecommerce hero image for a smart lamp, clean studio lighting", "size": "1536*1024" }'