Gemini 3.5 Flash (High) vs GPT-5.6 Terra (Low)
Which is better for the money: Gemini 3.5 Flash (High) by Google or GPT-5.6 Terra (Low) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
Gemini 3.5 Flash (High) scores 5.1 points higher (32.6 vs 27.5) but costs 12× as much to run the benchmark ($4222 vs $350; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Gemini 3.5 Flash (High) when you need intelligence above 27.5, and GPT-5.6 Terra (Low) when 27.5 is enough.
| Metric | Gemini 3.5 Flash (High) | GPT-5.6 Terra (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 32.6 | 27.5 | −15.6% GPT-5.6 Terra (Low) is 15.6% less intelligent |
| Total AA cost (lower is better) | $4,222.12 | $350.36 | −91.7% GPT-5.6 Terra (Low) is 91.7% cheaper |
| End-to-end time (lower is better) | 16.71s | 5.67s | −66.1% GPT-5.6 Terra (Low) is 66.1% faster |
| Price per 1M tokens (in / out) | $1.50 / $9.00 | $2.00 / $12.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-5.6 Terra (Low) vs Gemini 3.5 Flash (High): 15.6% less intelligence, 91.7% less cost to run the AA benchmark, and 66.1% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 3.5 Flash (High) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- GPT-5.6 Terra (Low) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
Gemini 3.5 Flash (High)GPT-5.6 Terra (Low)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/gemini-3-5-flash/gpt-5-6-terra-low · Markdown: /api/v1/compare/gemini-3-5-flash/gpt-5-6-terra-low?format=md · llms.txt · agent skill