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Grok 4.5 vs Muse Spark

Grok 4.5 leads in 1 of 8 categories

Arena ELO

Tie

Cheaper

Tie

Faster

Tie

Detailed Comparison

CategoryGrok 4.5Muse Spark
ProviderxAI Meta
Context Window128K WINN/A
Input Price ($/1M)N/A N/A
Output Price ($/1M)N/A N/A
Arena ELON/A N/A
CodingN/A N/A
ReasoningN/A N/A
Speed (tokens/sec)N/A N/A
Open SourceNo No

Frequently Asked Questions

Which has a larger context window?

Grok 4.5 supports 128K context, while Muse Spark supports N/A.

Is Grok 4.5 or Muse Spark open source?

Grok 4.5 is proprietary. Muse Spark is proprietary.