Kimi K3 Outperforms GPT-5.6 Sol in Game Design Test

goyalshaliniuk · x · 2026-07-20

The author compared the performance of Kimi K3, GPT-5.6 Sol, and Fable 5 in game design using the same prompts, mainly evaluating pacing control, design intuition, and game feel. The results show that **Kimi K3** performed the best (9.5/10), demonstrating excellent design intuition with solid pacing and gameplay, at a single-run cost of just $0.03. In contrast, Fable 5 (7.5/10, $0.38) and GPT-5.6 Sol (7/10, $0.11) struggled with pacing that felt too fast.

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