Built a web UI for OpenAI's GPT Image 1.5 (Next.js 16 and React 19) (opens in new tab)

What an impressive tool you've created! The advancements in text-to-image generation and targeted editing are truly remarkable. It's exciting to see such a thoughtful approach to addressing the limitations of existing interfaces. Wishing you great success with GPT Image 1.5!

Hey HN! I built GPT Image 1.5 (https://gpt-image-15.com), a web interface for OpenAI's latest image generation model released Dec 16, 2025.

  **What it does:**                                                              
  - Text-to-image generation with precise instruction following                  
  - Targeted image editing (e.g., "change shirt color" without touching          
  face/background)                                                               
  - Superior text rendering in images (infographics, UI mockups, marketing       
  materials)                                                                     
  - 4x faster than previous models (~2min for complex prompts, seconds for simple
   ones)                                                                         
                                                                                 
  **Why I built this:**                                                          
  OpenAI released the API but the ChatGPT UI has limitations for power users. I  
  needed:                                                                        
  - Batch generation workflows                                                   
  - Style consistency across multiple images                                     
  - API integration for product mockups                                          
  - Faster iteration cycles than ChatGPT's interface                             
                                                                                 
  **Tech stack:**                                                                
  - Next.js 16 (App Router, React Server Components, Turbopack)                  
  - React 19 with React Compiler                                                 
  - Tailwind CSS v4                                                              
  - Better Auth + Drizzle ORM (PostgreSQL)                                       
  - next-intl for i18n                                                           
                                                                                 
  **Benchmarks:**                                                                
  - LMArena ranking: #1 for text-to-image (1264) and editing (1409)              
  - Beats Google Nano Banana Pro in instruction following                        
  - 95% semantic matching between prompt and output                              
                                                                                 
  **Honest limitations:**                                                        
  - Complex prompts still take ~2 minutes (vs seconds for simple ones)           
  - Text rendering improved but not perfect in extreme cases                     
  - Inherits OpenAI's content policy restrictions                                
                                                                                 
  I'd love feedback on the UI/UX, especially from designers and developers using 
  AI image gen in production workflows.                                          
                                                                                 
  Live demo available at the homepage generator - no signup needed for the first 
  2 images.