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GPT-5.4 vs Muse Spark

GPT-5.4 leads in 5 of 8 categories

Arena ELO

GPT-5.4

Cheaper

GPT-5.4

Faster

GPT-5.4

Detailed Comparison

CategoryGPT-5.4Muse Spark
ProviderOpenAI Meta
Context Window1M WINN/A
Input Price ($/1M)$3 WINN/A
Output Price ($/1M)$15 WINN/A
Arena ELO1560 WINN/A
Codingunknown N/A
Reasoningunknown N/A
Speed (tokens/sec)~50 t/s WINN/A
Open SourceNo No

Frequently Asked Questions

Which is better for coding, GPT-5.4 or Muse Spark?

GPT-5.4 scores unknown on coding benchmarks, while Muse Spark scores N/A.

Which has a larger context window?

GPT-5.4 supports 1M context, while Muse Spark supports N/A.

Is GPT-5.4 or Muse Spark open source?

GPT-5.4 is proprietary. Muse Spark is proprietary.