GPT-5.5 (Medium) vs Muse Spark 1.1 (Xhigh)
Which is better for the money: GPT-5.5 (Medium) by OpenAI or Muse Spark 1.1 (Xhigh) by Meta? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
GPT-5.5 (Medium) scores 0.1 points higher (33.8 vs 33.7) but costs 1.2× as much to run the benchmark ($2095 vs $1737; flagship vs premium cost classes). Pick GPT-5.5 (Medium) when the extra intelligence is worth the premium, otherwise Muse Spark 1.1 (Xhigh).
| Metric | GPT-5.5 (Medium) | Muse Spark 1.1 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 33.8 | 33.7 | −0.3% Muse Spark 1.1 (Xhigh) is 0.3% less intelligent |
| Total AA cost (lower is better) | $2,095.12 | $1,737.18 | −17.1% Muse Spark 1.1 (Xhigh) is 17.1% cheaper |
| End-to-end time (lower is better) | 11.50s | 21.12s | +83.7% Muse Spark 1.1 (Xhigh) is 83.7% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
Muse Spark 1.1 (Xhigh) vs GPT-5.5 (Medium): 0.3% less intelligence, 17.1% less cost to run the AA benchmark, and 83.7% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.5 (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Muse Spark 1.1 (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.5 (Medium)Muse Spark 1.1 (Xhigh)Today's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5-medium/muse-spark-1-1 · Markdown: /api/v1/compare/gpt-5-5-medium/muse-spark-1-1?format=md · llms.txt · agent skill