Gemini 3.8 Flash (High) vs GPT-5.6 Terra (High)
Which is better for the money: Gemini 3.8 Flash (High) by Google or GPT-5.6 Terra (High) 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 3.8 Flash (High) scores 6.7 points higher (40.9 vs 34.2) but costs 2.1× as much to run the benchmark ($1623 vs $768; both premium class). Pick Gemini 3.8 Flash (High) when the extra intelligence is worth the premium, otherwise GPT-5.6 Terra (High).
| Metric | Gemini 3.8 Flash (High) | GPT-5.6 Terra (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 40.9 | 34.2 | −16.4% GPT-5.6 Terra (High) is 16.4% less intelligent |
| Total AA cost (lower is better) | $1,622.73 | $767.78 | −52.7% GPT-5.6 Terra (High) is 52.7% cheaper |
| End-to-end time (lower is better) | 30.36s | 6.57s | −78.4% GPT-5.6 Terra (High) is 78.4% faster |
| Price per 1M tokens (in / out) | $0.75 / $3.75 | $2.00 / $12.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-5.6 Terra (High) vs Gemini 3.8 Flash (High): 16.4% less intelligence, 52.7% less cost to run the AA benchmark, and 78.4% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 3.8 Flash (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- GPT-5.6 Terra (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
Gemini 3.8 Flash (High)GPT-5.6 Terra (High)Today's Pareto frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-3-8-flash/gpt-5-6-terra-high · Markdown: /api/v1/compare/gemini-3-8-flash/gpt-5-6-terra-high?format=md · llms.txt · agent skill