GPT-5.4 mini (Xhigh) vs GPT-5.5 (Medium)
Which is better for the money: GPT-5.4 mini (Xhigh) by OpenAI or GPT-5.5 (Medium) 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 (Medium) scores 9.7 points higher (33.8 vs 24.1) but costs 1.4× as much to run the benchmark ($2095 vs $1524; flagship vs premium cost classes). Pick GPT-5.5 (Medium) when the extra intelligence is worth the premium, otherwise GPT-5.4 mini (Xhigh).
| Metric | GPT-5.4 mini (Xhigh) | GPT-5.5 (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.1 | 33.8 | +40.2% GPT-5.5 (Medium) is 40.2% more intelligent |
| Total AA cost (lower is better) | $1,524.02 | $2,095.12 | +37.5% GPT-5.5 (Medium) is 37.5% more expensive |
| End-to-end time (lower is better) | 108.99s | 11.17s | −89.8% GPT-5.5 (Medium) is 89.8% faster |
| Price per 1M tokens (in / out) | $0.75 / $4.50 | $5.00 / $30.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.5 (Medium) vs GPT-5.4 mini (Xhigh): 40.2% more intelligence, 37.5% more cost to run the AA benchmark, and 89.8% 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 (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.4 mini (Xhigh)GPT-5.5 (Medium)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-medium · Markdown: /api/v1/compare/gpt-5-4-mini/gpt-5-5-medium?format=md · llms.txt · agent skill