Gemini 2.5 Pro vs GPT-5.5 (High)
Which is better for the money: Gemini 2.5 Pro by Google or GPT-5.5 (High) 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 (High) scores 20.9 points higher (37.0 vs 16.1) but costs 4.1× as much to run the benchmark ($3411 vs $823; flagship vs premium cost classes). They are not alternatives at one budget: pick GPT-5.5 (High) when you need intelligence above 16.1, and Gemini 2.5 Pro when 16.1 is enough.
| Metric | Gemini 2.5 Pro | GPT-5.5 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 16.1 | 37.0 | +129.8% GPT-5.5 (High) is 2.3× more intelligent |
| Total AA cost (lower is better) | $822.85 | $3,410.76 | +314.5% GPT-5.5 (High) is 4.1× more expensive |
| End-to-end time (lower is better) | 27.94s | 19.56s | −30.0% GPT-5.5 (High) is 30.0% faster |
| Price per 1M tokens (in / out) | $1.25 / $10.0 | $5.00 / $30.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-5.5 (High) vs Gemini 2.5 Pro: 129.8% more intelligence, 314.5% more cost to run the AA benchmark, and 30.0% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 2.5 Pro is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- GPT-5.5 (High) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
Gemini 2.5 ProGPT-5.5 (High)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-2-5-pro/gpt-5-5-high · Markdown: /api/v1/compare/gemini-2-5-pro/gpt-5-5-high?format=md · llms.txt · agent skill