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3D Scroll of The Forbidden City: GPT Image 1.5 vs. Nano Banana Pro

I tested GPT Image 1.5 and Nano Banana Pro on The Forbidden City 3D scroll—Nano Banana nailed accuracy, but GPT Image wowed with creative flair.

When Creativity Meets Accuracy: My Forbidden City 3D Scroll Test

Recently, I put two powerful AI image generators head-to-head to create a 3D scroll of The Forbidden City. On one side was GPT Image 1.5, known for its imaginative capabilities, and on the other was Nano Banana Pro, backed by Gemini 3 Pro and Google Search’s vast knowledge base.

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You can find the full prompt here: ✨Prompt✨

From the start, it was clear that Nano Banana Pro respected the core principles of Chinese imperial architecture. Every hall aligned perfectly along the north-south axis, and the bilateral symmetry of the Hall of Supreme Harmony was meticulously preserved. The Chinese characters it rendered were spot-on, reflecting a deep understanding of historical context and architectural logic.

GPT Image 1.5, in contrast, took a wildly different approach. It broke fundamental design rules—ignoring the sacred architectural alignment and symmetry that define the Forbidden City. The Chinese characters it produced were entirely inaccurate, which was disappointing but not wholly surprising. OpenAI’s choice to label this release as a “1.5” update hints at its awareness of these knowledge gaps.

Yet, despite these factual missteps, GPT Image 1.5 won me over with its artistic soul. The image flowed like a dynamic scroll unfurling, enveloped in a misty, atmospheric haze that evoked classic ink-wash animations. Its bold palette and fluid composition felt like a breath of fresh air, showcasing AI’s potential to inspire rather than just replicate.

This experience reminded me why ChatGPT’s creative intuition remains irreplaceable. The model’s delicate touch and aversion to generic results breathe life into visuals, even if that sometimes means bending reality. Unfortunately, in the quest for benchmarks and viral features, OpenAI risks sidelining these unique strengths.

For anyone curious about using AI for historical or architectural visuals, this test underscores the importance of choosing the right tool. If accuracy and cultural respect matter most, Nano Banana Pro shines. But if you want to explore imaginative interpretations with a strong artistic flair, GPT Image 1.5 still holds value.

You can find the full prompt here: ✨Prompt✨

For more on how to get the best from your AI art creator, check out these resources on image generation and AI image generator techniques.