GPT-5.4 mini (Xhigh) vs GPT-5.5 (Xhigh)
Which is better for the money: GPT-5.4 mini (Xhigh) by OpenAI or GPT-5.5 (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
GPT-5.5 (Xhigh) scores 14.3 points higher (38.4 vs 24.1) but costs 3.5× as much to run the benchmark ($5294 vs $1524; flagship vs premium cost classes). They are not alternatives at one budget: pick GPT-5.5 (Xhigh) when you need intelligence above 24.1, and GPT-5.4 mini (Xhigh) when 24.1 is enough.
| Metric | GPT-5.4 mini (Xhigh) | GPT-5.5 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.1 | 38.4 | +59.3% GPT-5.5 (Xhigh) is 59.3% more intelligent |
| Total AA cost (lower is better) | $1,524.02 | $5,294.36 | +247.4% GPT-5.5 (Xhigh) is 3.5× more expensive |
| End-to-end time (lower is better) | 108.99s | 40.04s | −63.3% GPT-5.5 (Xhigh) is 63.3% faster |
| Price per 1M tokens (in / out) | $0.75 / $4.50 | $5.00 / $30.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.5 (Xhigh) vs GPT-5.4 mini (Xhigh): 59.3% more intelligence, 247.4% more cost to run the AA benchmark, and 63.3% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.4 mini (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- 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.
GPT-5.4 mini (Xhigh)GPT-5.5 (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-5-4-mini/gpt-5-5 · Markdown: /api/v1/compare/gpt-5-4-mini/gpt-5-5?format=md · llms.txt · agent skill