GPT-5.5 (Xhigh) vs Trinity Large Thinking
Which is better for the money: GPT-5.5 (Xhigh) by OpenAI or Trinity Large Thinking by Arcee AI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
GPT-5.5 (Xhigh) scores 27.6 points higher (38.4 vs 10.8) but costs 23× as much to run the benchmark ($5294 vs $233; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.5 (Xhigh) when you need intelligence above 10.8, and Trinity Large Thinking when 10.8 is enough.
| Metric | GPT-5.5 (Xhigh) | Trinity Large Thinking | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.4 | 10.8 | −71.9% Trinity Large Thinking is 71.9% less intelligent |
| Total AA cost (lower is better) | $5,294.36 | $232.95 | −95.6% Trinity Large Thinking is 95.6% cheaper |
| End-to-end time (lower is better) | 44.96s | 8.30s | −81.5% Trinity Large Thinking is 81.5% faster |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $0.25 / $0.80 | |
| Input modalities | Text, Image | Text |
Trinity Large Thinking vs GPT-5.5 (Xhigh): 71.9% less intelligence, 95.6% less cost to run the AA benchmark, and 81.5% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.5 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- Trinity Large Thinking is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
GPT-5.5 (Xhigh)Trinity Large ThinkingToday's Pareto frontierOpen-weights frontierEvery other model
Matchup
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