Gemini 3.8 Flash (High) vs GPT-6 Astra (Xhigh)
Which is better for the money: Gemini 3.8 Flash (High) by Google or GPT-6 Astra (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
GPT-6 Astra (Xhigh) scores 11.5 points higher (52.4 vs 40.9) but costs 2.3× as much to run the benchmark ($3803 vs $1623; flagship vs premium cost classes). Pick GPT-6 Astra (Xhigh) when the extra intelligence is worth the premium, otherwise Gemini 3.8 Flash (High).
| Metric | Gemini 3.8 Flash (High) | GPT-6 Astra (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 40.9 | 52.4 | +28.1% GPT-6 Astra (Xhigh) is 28.1% more intelligent |
| Total AA cost (lower is better) | $1,622.73 | $3,802.98 | +134.4% GPT-6 Astra (Xhigh) is 2.3× more expensive |
| End-to-end time (lower is better) | 33.13s | 163.27s | +392.8% GPT-6 Astra (Xhigh) is 392.8% slower |
| Price per 1M tokens (in / out) | $0.75 / $3.75 | $10.0 / $50.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-6 Astra (Xhigh) vs Gemini 3.8 Flash (High): 28.1% more intelligence, 134.4% more cost to run the AA benchmark, and 392.8% slower 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-6 Astra (Xhigh) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
Gemini 3.8 Flash (High)GPT-6 Astra (Xhigh)Today's Pareto frontierEvery other model
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