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.
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.