Gemini 3.5 Flash-Lite vs GPT-5.5 (Xhigh)
Which is better for the money: Gemini 3.5 Flash-Lite by Google 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 16.2 points higher (38.4 vs 22.2) but costs 14× as much to run the benchmark ($5294 vs $366; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.5 (Xhigh) when you need intelligence above 22.2, and Gemini 3.5 Flash-Lite when 22.2 is enough.
| Metric | Gemini 3.5 Flash-Lite | GPT-5.5 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 22.2 | 38.4 | +73.0% GPT-5.5 (Xhigh) is 73.0% more intelligent |
| Total AA cost (lower is better) | $365.63 | $5,294.36 | +1348.0% GPT-5.5 (Xhigh) is 14× more expensive |
| End-to-end time (lower is better) | 8.69s | 40.04s | +360.8% GPT-5.5 (Xhigh) is 360.8% slower |
| Price per 1M tokens (in / out) | $0.30 / $2.50 | $5.00 / $30.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-5.5 (Xhigh) vs Gemini 3.5 Flash-Lite: 73.0% more intelligence, 1348.0% more cost to run the AA benchmark, and 360.8% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 3.5 Flash-Lite is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
- 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.
Gemini 3.5 Flash-LiteGPT-5.5 (Xhigh)Today's Pareto frontierEvery other model
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