Tested Muse Spark 1.2, Kimi K3, and GLM 5.2 with our FlappyBench. 3 models, same prompt with the /design command. Reviewed gameplay features, UX/UI, and cost.
- Kimi K3 → 9.5/10 · $0.0740
- GLM 5.2 → 9/10 · $0.0480
- Muse Spark 1.2 → 8/10 · $0.0187
Muse Spark 1.2 delivered a completely different game style despite being super cheap. Kimi K3 and GLM 5.2 outputs are comparable and close in cost.
Our engineering and design team has been testing 26+ side-by-side comparisons across frontier and open models. All runs are public and open source. Benchmark for this demo here: github.com/CommandCodeAI/slash-design-showcase/tree/main/flappy-bird
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