GPT Image Generation Quality Comparison

I had ChatGPT create an image, and when I had it created again today, it might be GPT image 2, and it looks like the result has changed, so I'm noting it down

The light blue and yellow on the left are last week's
The purple one on the right is today

The one on the right seems to have different transparency, resolution, and detail...

プロンプト
Drawing a near-future sci-fi version of the mandala