Gemini 3.8 Flash (Medium) vs GPT-6.1 Terra (Xhigh)
Which is better for the money: Gemini 3.8 Flash (Medium) by Google or GPT-6.1 Terra (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Clear winner
Verdict
Pick GPT-6.1 Terra (Xhigh)
GPT-6.1 Terra (Xhigh) vs Gemini 3.8 Flash (Medium): 14.1% more intelligence, 86.5% less cost to run the AA benchmark, and end-to-end time not fully reported.
| Metric | Gemini 3.8 Flash (Medium) | GPT-6.1 Terra (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 39.8 | 45.4 | +14.1% GPT-6.1 Terra (Xhigh) is 14.1% more intelligent |
| Total AA cost (lower is better) | $2,703.34 | $364.95 | −86.5% GPT-6.1 Terra (Xhigh) is 86.5% cheaper |
| End-to-end time (lower is better) | Not reported | 18.82s | — not comparable |
| Price per 1M tokens (in / out) | $0.75 / $3.75 | $1.00 / $5.00 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Today's Pareto frontier
Against the frontier
- Gemini 3.8 Flash (Medium) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
- GPT-6.1 Terra (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
Gemini 3.8 Flash (Medium)GPT-6.1 Terra (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/gemini-3-8-flash-medium/gpt-6-1-terra-xhigh · Markdown: /api/v1/compare/gemini-3-8-flash-medium/gpt-6-1-terra-xhigh?format=md · llms.txt · agent skill