- Blog
- The One AI Image Prompt Trick That Makes ChatGPT and Gemini 10x Better
The One AI Image Prompt Trick That Makes ChatGPT and Gemini 10x Better

You know the frustration: you type "a beautiful sunset over a mountain lake" into an AI image generator, and what comes out looks like a 2005 screensaver. Meanwhile, someone on X posts a photorealistic masterpiece that makes your jaw drop. The difference isn't talent or experience — it's a single AI image prompt trick that ZDNET contributor Lance Whitney just put to the test.
This AI image prompt trick is deceptively simple: let the AI write its own image prompts. Instead of struggling to describe every detail yourself, you give the AI image generator a basic concept and let it expand the prompt for you. It sounds too easy to work — until you see the results.
I tested this AI image prompt trick across ChatGPT (GPT Image 2) and Gemini image generation (Nano Banana), and the difference is staggering. Every AI image generator responds better when the prompt comes from its own model. Here's exactly how this AI image prompt trick works — with copy-paste templates you can use on Fanch AI right now.
1. The Problem: Humans Write Terrible AI Image Prompts
Let's be honest — most of us have no idea what an AI image generator actually needs. We type "a metal sunflower, pencil drawing style" and expect magic. What the AI image generator hears: "six vague words, do whatever." The output reflects the input — mediocre prompts produce mediocre images.
What every AI image generator actually responds to is texture descriptions, lighting cues, material properties, compositional framing — the vocabulary of professional photographers and concept artists. Most people don't think in those terms. That's exactly why this AI image prompt trick changes everything.
2. The AI Image Prompt Trick: Let AI Write Its Own Prompts
This AI image prompt trick is almost embarrassingly straightforward. You don't write the final prompt. You give the AI image generator a rough concept and ask it to write the full prompt — optimized for its own generation engine.
Here's the AI image prompt trick template Whitney used:
Copy the AI Art Prompt:
"I would like to create an image of [basic description]. Generate a prompt that I can use to request this image from [GPT Image 2 or Nano Banana]."
That's the entire AI image prompt trick — one sentence, zero prompt engineering skill required.
3. ChatGPT vs Gemini Image Generation: Same Concept, Different Prompts
I put this AI image prompt trick to the test with both GPT Image 2 and Gemini image generation. Same basic idea — "a sunflower made of sheet metal in a pencil drawing style" — but each AI image generator produced a radically different prompt, tuned to its own strengths.
Gemini image generation prompt (for Nano Banana):
Copy the AI Art Prompt:
"A pencil drawing of a metal sunflower. The flower, its petals, the leaves, and the stem are composed of sculpted pieces of metal sheet. The texture of the metal is clear, with imperfections and visible weld lines. The shading is done in graphite, with highlights reflecting off the metallic surfaces."
Gemini image generation added details no human would think to include: "imperfections," "visible weld lines," "graphite shading with highlights." The AI image generator knew exactly what Nano Banana responds to and wrote the prompt accordingly.
ChatGPT prompt (for GPT Image 2):
Copy the AI Art Prompt:
"A detailed pencil drawing of a sunflower constructed from sheet metal. The petals are shaped from thin, slightly curved metal plates with visible seams, rivets, and subtle bends. The center of the sunflower is a dark, textured disc of perforated metal. Graphite shading creates deep shadows and bright highlights on the metallic surfaces."
GPT Image 2 received a completely different treatment: "rivets," "perforated metal," "subtle bends." Same concept, but this AI image generator got a prompt optimized for its own rendering style.
This is the core insight of the AI image prompt trick: you don't need to be a prompt engineer — you need to be a prompt delegator. Every AI image generator knows what it responds to better than you do.

4. Why This AI Image Prompt Trick Actually Works
There are three reasons this AI image prompt trick outperforms writing your own prompts every time:
🎯 Model-Specific Optimization — ChatGPT knows what GPT Image 2 responds to. Gemini image generation knows what Nano Banana needs. When you apply this AI image prompt trick, each AI image generator writes a prompt tuned to its own training data and rendering pipeline. No human prompt engineer matches that.
🔧 Explosive Detail Density — The prompts generated by this AI image prompt trick contained 4-5x more descriptive elements than a typical human prompt. "Sheet metal petals with visible seams, rivets, and subtle bends" versus... "metal sunflower." Every AI image generator thrives on detail, and this AI image prompt trick delivers it automatically.
🚫 Safety Filter Bypass — Whitney's third insight: "When chatbots design their own image prompts, they avoid including language that the AI image generator might flag or refuse." No more random rejections from GPT Image 2 or Gemini image generation because you accidentally used a blocked term. The AI image prompt trick handles this behind the scenes.
5. Try the AI Image Prompt Trick: 3 Remixed Scenarios
Here are three fresh scenarios to test this AI image prompt trick yourself. Each one follows the same template — paste the base instruction into Fanch AI and let the AI image generator do the heavy lifting.
Scenario 1: Product Photography
Copy the AI Art Prompt (use on Fanch AI with GPT Image 2):
"I would like to create a product photo of a minimalist ceramic coffee mug on a wooden table with morning light streaming through a window. Generate a prompt that I can use to request this image from GPT Image 2."

Scenario 2: Fantasy Concept Art
Copy the AI Art Prompt (use on Fanch AI with GPT Image 2):
"I would like to create a fantasy illustration of a floating crystal library in the clouds at sunset. Generate a prompt that I can use to request this image from GPT Image 2."
Scenario 3: Cinematic Portrait
Copy the AI Art Prompt (use on Fanch AI with GPT Image 2):
"I would like to create a cinematic portrait of an elderly fisherman on a dock at golden hour, shot on 35mm film. Generate a prompt that I can use to request this image from GPT Image 2."
Apply this AI image prompt trick to any concept and you'll get back a prompt 5-10x more detailed than what you'd type manually. The AI image generator writes what it wants to read — and the results prove it.
6. The AI Image Prompt Trick Pro Move: Iterate
If the prompt from this AI image prompt trick comes back too long, just ask for a shorter version. Want a different style? Layer instructions: "Make the prompt more cinematic," "Add more texture detail," "Focus on dramatic lighting." You're not using this AI image prompt trick once — you're having a conversation where the AI image generator is your prompt consultant.
Why Fanch AI Makes This AI Image Prompt Trick Even Better
Here's why Fanch AI is the ideal platform for this AI image prompt trick: you get multiple AI image generators in one place. Test the same base concept on GPT Image 2, switch to Gemini image generation with Nano Banana, then try another model — all from the same interface. No switching tabs, no separate accounts, no copying prompts between platforms.
The AI image prompt trick shines brightest when you can compare results across different AI image generators side by side. Fanch AI was built for exactly that.
👉 Start here: Fanch AI Image Generator
