Descriptions:
OpenAI’s GPT Image 1.5 gets its first rigorous public comparison against current image generation leader Nano Banana Pro in this detailed Futurepedia test. The review prioritizes practical applications over novelty stress tests, covering upscaling, photorealism, consistent character generation, long-form text rendering, infographic layout, and search-augmented image creation.
On photorealism, Nano Banana Pro consistently outperformed GPT Image 1.5 across multiple prompt types. GPT Image 1.5 defaults to an overly polished, cinematic aesthetic — every subject looks attractively lit with perfect skin — while Nano Banana produces images with natural imperfections, asymmetry, and authentic texture that more closely resemble real photographs. Upscaling results were more balanced: GPT Image 1.5 added natural detail but shifted color temperature cooler, while Nano Banana preserved original colors more faithfully at the cost of slightly less realistic texture on close inspection.
Text generation and complex infographic tasks favored Nano Banana Pro, which handled alphabet grids, exploded technical diagrams, and multi-column layouts with fewer errors. Both models successfully used live web search to generate an accurate five-product vacuum cleaner comparison infographic from scratch. For creative typography and graphic design tasks — including typographic animal silhouettes and marketing materials — GPT Image 1.5’s polished aesthetic became an asset rather than a liability. The overall conclusion positions Nano Banana Pro as the stronger general-purpose tool, with GPT Image 1.5 best suited to contexts where a clean, high-contrast visual style is the explicit goal.
📺 Source: Futurepedia · Published December 19, 2025
🏷️ Format: Comparison
