i haven’t shared the source code yet

exactly, and another run doesn’t guarantee the physics will turn out how you wanted either

there’s a link in the comments where you can try it out!

just $2.27 extra for that jelly physics makes it an easy choice 😂

opus felt closer to what i wanted during interaction. sol’s physics lacked that jelly feel, so that’s what i’d improve first

i focused more on the look and physics here, but an fps comparison would be interesting too

at this price gap, the better physics and colors are easily worth it

i kept dragging it around just to watch it wobble

sol looks decent for the price, but the physics were a bigger letdown for me than the colors

the richer colors give opus’s dolphin that juicy jelly look

yeah, i’m used to opus delivering quality, but this time the price surprised me too 😂

PROMPT Build "Dolphin Jelly" — Material Studies No. 045: an interactive WebGPU soft-body study of a bottlenose dolphin cast in two layers of jelly, lying on its belly on a pale studio sweep. Same engine as the jelly series (WGSL, no libraries): signed-distance shape → surface-nets render mesh + snapped hex lattice (5 tets/cell) for XPBD with co-rotational shape matching, volume constraints, floor friction, soft grab with twist; shadow map, contact AO, back-face thickness, refraction, Beer–Lambert absorption, thin-part glow, PBR Neutral tone map. Shape: elliptical section swept along the spine — round melon, deep chest, tall laterally-compressed tail stock, belly pressed flat; a short tapering beak smooth-unioned tightly so a crease stays at the melon; a blowhole dimple. Fins from one recipe (flat triangle, convex leading edge, falcate trailing edge, thinning to the tip): hooked dorsal, small pointed flippers, swept flukes whose roots cross the midline so the trailing edges meet in a median notch. Two layers: clear jelly over a milky belly whose countershading line runs as a long low wave and forward under the eye to the mouth corner, so throat and lower jaw are pale. Shader in rest space: a darker cape as a pigment film (lowest under the dorsal fin, wrapping the tail stock, on the upper jaw only), eye-to-flipper blaze, eye shadow, blowhole stripe, the smile along the jaw line turning up at the corner, blowhole crescent, a few sets of parallel rake-mark scars different on each side; dark glossy eyes; trapped bubbles. Interaction: "Kick flukes" drives a dorso-ventral stroke by muscle strain — each tet's rest shape is lengthened/shortened along the body by curvature × its height above/below the spine (volume-preserving), stronger toward the flukes, softened for a very soft jelly. "Blow": a short explosive chuff of jelly drops from the blowhole along its live axis; drops bounce, collide with the deformed body, can be tossed. Palettes Atlantic / Lagoon / Boto (pink river-dolphin nod); readouts mass, volume %, beak-to-notch length, loose drops; firmness & damping sliders, ¼ speed, mesh overlay, pause, reset; editorial UI in English.

try it here: GPT-6.1 Sol dolphin-jelly.vercel.app/ Claude Opus 5.5 claude.ai/artifact/Jqm5rF2Xj…

Opus, and this is only $5.19? 🐬 Claude Opus 5.5 vs GPT-6.1 Sol. One prompt - two jelly dolphins Opus surprised me again: vibrant colors, beautiful jelly, and satisfying physics. Usually it impresses me with quality, but this time with the price too Sol at $2.92 fell short here: the physics weren’t quite what I wanted, and the colors lacked vibrancy Just $2.27 more - I’m picking Opus. What about you? 👀

thanks

exactly, and opus got this one right on the first try. terra needed fixes and i still preferred opus by a lot

yeah, that was one of the first things that bothered me too

opus got it on the first try. terra needed a few fixes, mainly the black screen and character movement

exactly, at that price i don’t mind if a few ideas turn out badly

true, i wouldn’t pay for opus on every experiment. terra makes more sense when you’re just testing ideas