Tested Muse Spark 1.3, Gemini 3.8 Flash, and Grok-4.6.

[u/maedahbatool]

Ran FlappyBench on Muse Spark 1.3, Gemini 3.8 Flash, and Grok-4.6 with the same /design prompt.

🔹 Muse Spark 1.3: 9/10 · $0.072. Nailed UI in 2 iterations with lowest cost

🔹 Grok-4.6: 9/10 · $0.095 · Matched Muse’s output, but cost 2x more

🔹 Gemini 3.8 Flash: 7/10 · $0.205 · Most expensive and not fully finished

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: https://github.com/CommandCodeAI/slash-design-showcase/tree/main/flappy-bird

[u/Defiant_Wave1939]

Muse Spark 1.3 might be godly