Grok 4.5 vs Muse Spark 1.1
Head-to-head technical comparison of intelligence, capabilities, and API pricing.
Grok 4.5
xAI
AI Mastery Index93.4
LMSYS Arena1465
Technical (MMLU-Pro)92.8%
Cost per 1M Tokens$2
Muse Spark 1.1
Meta
AI Mastery Index92.3
LMSYS Arena1458
Technical (MMLU-Pro)91.9%
Cost per 1M Tokens$1.25
Architect's Verdict
When comparing Grok 4.5 and Muse Spark 1.1, Grok 4.5 edges out in overall capabilities according to the AI Mastery Index. However, for cost-sensitive workloads, Muse Spark 1.1 offers a more economical API at $1.25 per 1M tokens. Your choice should depend heavily on whether you prioritize raw reasoning (MMLU) or scalable deployment economics.