GPT-5.5 Instant (June 2026) vs Muse Spark 1.2 (Xhigh)
Which is better for the money: GPT-5.5 Instant (June 2026) by OpenAI or Muse Spark 1.2 (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
Muse Spark 1.2 (Xhigh) scores 13.6 points higher (39.6 vs 26.0) but costs 1.2× as much to run the benchmark ($1385 vs $1184; both premium class). Pick Muse Spark 1.2 (Xhigh) when the extra intelligence is worth the premium, otherwise GPT-5.5 Instant (June 2026).
| Metric | GPT-5.5 Instant (June 2026) | Muse Spark 1.2 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 26.0 | 39.6 | +52.3% Muse Spark 1.2 (Xhigh) is 52.3% more intelligent |
| Total AA cost (lower is better) | $1,184.34 | $1,385.40 | +17.0% Muse Spark 1.2 (Xhigh) is 17.0% more expensive |
| End-to-end time (lower is better) | 16.68s | 20.76s | +24.5% Muse Spark 1.2 (Xhigh) is 24.5% 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 1.2 (Xhigh) vs GPT-5.5 Instant (June 2026): 52.3% more intelligence, 17.0% more cost to run the AA benchmark, and 24.5% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.5 Instant (June 2026) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Muse Spark 1.2 (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.5 Instant (June 2026)Muse Spark 1.2 (Xhigh)Today's Pareto frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5-instant-06-26/muse-spark-1-2 · Markdown: /api/v1/compare/gpt-5-5-instant-06-26/muse-spark-1-2?format=md · llms.txt · agent skill