Opus 4.6 vs GPT 5.4 (High) (1/9)
prompt: Build a single-file HTML/CSS/JS (no libs) demo that uses SVG to simulate a plant growing: stem extends, leaves sprout + unfurl with springy/windy “physics”, then seamlessly loops forever.
For the initial impressions I'm really impressed by GPT, for speed they both felt about the same, but gpt was still half cheaper than opus.
I also much prefer the design and animation that gpt produced, physics on the leaves are super cool and it also loops pretty nicely whilst opus just fades out the plant.
Still got a bunch of tests to run but this is really exciting.