GPT Image 1.5 vs Gemini: A Real-World Image Model Showdown

OpenAI rolled out GPT Image 1.5 as the new default image engine in ChatGPT — a real upgrade, not just a version bump. Big change: the new Images workspace with presets/styles (VHS, Watercolor, Cyberpunk, K-Pop), a trending prompt feed, and an image library. It makes ChatGPT feel like an actual creative tool. I tested GPT Image 1.5 vs Google’s Gemini (Nano Banana Pro) across 10 practical tests: • Precise image editing (lighting/faces/composition) • Generation speed • Text rendering (posters, newspapers, UI) • Complex prompt following • Character consistency • Logo design • Real-world context (Tesla/SpaceX) • Famous people generation/editing • Website UI mockups • Style transfers (Minecraft/Ghibli) Takeaways: GPT Image 1.5 is way better at realistic edits, text rendering is finally usable, and instruction-following is stronger on long prompts. The one-time likeness upload helps with consistent characters. Speed is improved (still not the fastest). Gemini stays competitive on speed and some stylized output, but OpenAI is clearly optimizing for creative workflows.