Opus 5.5 vs GPT-6 Astra: jelly banana tree physics compared
The author had Claude Opus 5.5 and ChatGPT-6 Astra each generate a browser WebGPU jelly tree animation, comparing colors and physics feel and noting API costs.
Even the banana tree turned into jelly🍌 Claude Opus 5.5 vs ChatGPT-6 Astra I preferred Astra’s more saturated colors. The greens and bananas look richer, but I really didn’t like the jelly feel. The tree sways, yet it doesn’t feel like soft jelly Opus wins for me on both the wobble and the physics. Especially when you pull the trunk sideways and let go - the bending and bouncing feel much more satisfying. Both run right in the browser on WebGPU. Ideally, I’d combine Astra’s colors with Opus’s physics Estimated API cost: Opus - $13.20 Astra - $15.15 Richer colors or better jelly physics? Which would you pick? 👀