Three.js Eiffel Tower test: Sol is cheapest but weakest, Opus 5.5 wins

0xMarioNawfal @RoundtableSpaceOriginally posted 2026.09.24

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Someone asked Opus 5.5, GPT-6 Astra, GPT-6 Sol and Kimi K3 to build the Eiffel Tower in Three.js, and Opus 5.5 came out on top for frontend and 3D detail at $8.95 and 10 minutes. → Opus 5.5 cost $8.95 and took 10 minutes, and was preferred over GPT-6 Astra for this task → GPT-6 Astra cost $7.45 and took 8 minutes → GPT-6 Sol was the cheapest and fastest at $3.90 and 5 minutes, but gave the most disappointing result → Kimi K3 delivered a strong tower for $4.04 in 6 minutes, less than half of Opus 5.5's cost