GPT-5.5 vs Muse Spark
GPT-5.5 (OpenAI) and Muse Spark (Meta AI) compared on benchmarks, pricing, context window, and use-case rankings.
- GPT-5.5 leads on overall intelligence (ECI 159 vs 155).
- GPT-5.5 ranks higher for coding (91th vs 84th percentile).
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
Frequently asked questions
Is GPT-5.5 better than Muse Spark?
On Epoch AI's Capabilities Index, GPT-5.5 scores higher (159) than Muse Spark (155). The right pick depends on your task — compare their coding, math, and reasoning scores in the table above.
Which is better for coding, GPT-5.5 or Muse Spark?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, GPT-5.5 ranks higher — 91th vs 84th percentile among the models tracked on Model Beat.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.