Sonnet 5.5 vs GPT-6 Astra: 3D jellyfish built from the same prompt
The author gave the same prompt to Sonnet 5.5 and GPT-6 Astra to build a stretchable 3D jellyfish; Astra's result was glossier but cost $4.29, more than twice Sonnet's $1.95.
SONNET 5.5 BUILT THIS FOR $1.95. GPT-6 ASTRA COST $4.29. LESS THAN HALF THE PRICE. CAN YOU TELL WHICH IS WHICH? The task: build an interactive 3D jellyfish you can grab, stretch, and squish in your browser. Same prompt. Two different results: > Sonnet 5.5: a translucent body with thin, delicate tentacles. >GPT-6 Astra: a fuller shape with a glossy, gummy-candy finish. >The differences become clearer when you stretch and spin them. The estimated API costs tell another story: > Sonnet: $1.95. > Astra: $4.29. > Sonnet’s version cost roughly 55% less. Astra delivered the shinier jellyfish. Sonnet delivered a more delicate look for under $2. Whether the extra gloss is worth paying more than twice as much is the interesting question. Which version would you put on your website?
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