Gemini 3.8 Flash (Medium) vs gpt-oss-120b (High)
Which is better for the money: Gemini 3.8 Flash (Medium) by Google or gpt-oss-120b (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
Gemini 3.8 Flash (Medium) scores 28.2 points higher (39.8 vs 11.6) but costs 9.0× as much to run the benchmark ($1100 vs $123; premium vs mid-range cost classes). They are not alternatives at one budget: pick Gemini 3.8 Flash (Medium) when you need intelligence above 11.6, and gpt-oss-120b (High) when 11.6 is enough.
| Metric | Gemini 3.8 Flash (Medium) | gpt-oss-120b (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 39.8 | 11.6 | −70.9% gpt-oss-120b (High) is 70.9% less intelligent |
| Total AA cost (lower is better) | $1,100.06 | $122.71 | −88.8% gpt-oss-120b (High) is 88.8% cheaper |
| End-to-end time (lower is better) | Not reported | 11.55s | — not comparable |
| Price per 1M tokens (in / out) | $0.75 / $3.75 | $0.15 / $0.60 | |
| Input modalities | Text, Image, Speech, Video | Text |
gpt-oss-120b (High) vs Gemini 3.8 Flash (Medium): 70.9% less intelligence, 88.8% less cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- Gemini 3.8 Flash (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- gpt-oss-120b (High) is off the frontier: at the same or lower cost, GPT-6 Luna (Max) scores 38.10 for $122.
Gemini 3.8 Flash (Medium)gpt-oss-120b (High)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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