GPT-5.5 (High) vs Trinity Large Thinking
Which is better for the money: GPT-5.5 (High) 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 (High) scores 26.2 points higher (37.0 vs 10.8) but costs 15× as much to run the benchmark ($3411 vs $233; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.5 (High) when you need intelligence above 10.8, and Trinity Large Thinking when 10.8 is enough.
| Metric | GPT-5.5 (High) | Trinity Large Thinking | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.0 | 10.8 | −70.8% Trinity Large Thinking is 70.8% less intelligent |
| Total AA cost (lower is better) | $3,410.76 | $232.95 | −93.2% Trinity Large Thinking is 93.2% cheaper |
| End-to-end time (lower is better) | 19.79s | 8.30s | −58.1% Trinity Large Thinking is 58.1% 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 (High): 70.8% less intelligence, 93.2% less cost to run the AA benchmark, and 58.1% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.5 (High) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
- 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 (High)Trinity Large ThinkingToday's Pareto frontierOpen-weights 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-high/trinity-large-thinking · Markdown: /api/v1/compare/gpt-5-5-high/trinity-large-thinking?format=md · llms.txt · agent skill