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Testing ChatGPT Image 1.5's crazy capabilities (full review)

| 6 products mentioned
Greg Isenberg Greg Isenberg host
Watch on YouTube ai image generation creative tools product design content creation startup ideas generative ai comparison social media marketing

Greg Isenberg tests ChatGPT's new Image 1.5 model across multiple creative styles—plushies, sketches, bobbleheads, and diagrams—to evaluate whether it surpasses Nano Banana Pro as his go-to image generation tool. He demonstrates the model's improved instruction-following, editing capabilities, and text rendering, while highlighting practical applications for creating viral social media content and CPG product designs.

Key takeaways
  • • ChatGPT Image 1.5 matches or exceeds Nano Banana Pro in output quality, with notably better detail preservation, instruction-following, and feedback responsiveness.
  • • The new model uses optimized prompts internally (similar to apps like Glyph), which may explain improved outputs as much as model improvements alone.
  • • Style transformations—plushies, pencil sketches, bobbleheads—produce surprisingly natural results that could enable entrepreneurs to create CPG brands and viral social content with AI-generated designs.
  • • Better text rendering and instruction-following solve long-standing image model limitations, enabling more precise edits and complex compositions with preserved element relationships.
  • • The model excels at creative editing operations (adding, removing, blending, combining elements), making it viable for iterative design workflows without losing original image details.
  • • AI-generated diagrams posted on X (Twitter) in sketch style receive significantly higher engagement than standard versions, suggesting aesthetic choices impact viral potential.

Recommendations (3)

ChatGPT
ChatGPT uses

"So, you know what you want to do is you want to go to ChatGPT. You're going to want to click that plus button."

Greg Isenberg · ▶ 0:30

Nano Banana Pro uses

"Let's see if it can actually get better output than Nano Banana Pro, which has been my daily driver for the last few weeks."

Greg Isenberg · ▶ 0:16

TikTok
TikTok uses

"You know it means like creating slideshows for Instagram on TikTok and stuff like that."

Greg Isenberg · ▶ 3:52

Mentioned (3)

Glyph
Glyph "I did a review of Glyph app and that's something that they do. So they basically bring in a bunch..." ▶ 1:30
Shopify
Shopify "I want to actually go and set up a Shopify. And what does that look like?" ▶ 10:08
Gemini
Gemini "We've gotten to the point where ChatGPT, Gemini 3, a lot of these LLMs, like from a text base is ..." ▶ 7:57

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