GPT-5.6 Sol vs Kimi K3 vs Gemini 3.6 Flash: Kimi dominates on value, Gemini has features but fails

A developer tested three models with the same prompt (/design command) and evaluated gameplay, UX, and UI. Kimi K3 performed well across all three; GPT-5.6 Sol was good but got annoying when the ball hit the wall; Gemini 3.6 Flash was bad (took 5-6 attempts) but had unique features like dropping coins for power-ups and increasing bar length. Ranking by DX, features, and cost: Kimi K3 10/10 at $0.10, GPT-5.6 Sol 9/10 at $0.52, Gemini 3.6 Flash 6/10 at $0.45.

• model comparison
• cost
• Kimi K3
• GPT-5.6 Sol
• Gemini 3.6 Flash