Gemini 3.8 Flash (Medium) vs Grok 4.3 (Non-reasoning)
Which is better for the money: Gemini 3.8 Flash (Medium) by Google or Grok 4.3 (Non-reasoning) by SpaceXAI? 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 25.8 points higher (39.8 vs 14.0) but costs 4.4× as much to run the benchmark ($1100 vs $250; premium vs mid-range cost classes). They are not alternatives at one budget: pick Gemini 3.8 Flash (Medium) when you need intelligence above 14.0, and Grok 4.3 (Non-reasoning) when 14.0 is enough.
| Metric | Gemini 3.8 Flash (Medium) | Grok 4.3 (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 39.8 | 14.0 | −64.8% Grok 4.3 (Non-reasoni… is 64.8% less intelligent |
| Total AA cost (lower is better) | $1,100.06 | $250.37 | −77.2% Grok 4.3 (Non-reasoni… is 77.2% cheaper |
| End-to-end time (lower is better) | Not reported | 5.89s | — not comparable |
| Price per 1M tokens (in / out) | $0.75 / $3.75 | $1.25 / $2.50 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Grok 4.3 (Non-reasoning) vs Gemini 3.8 Flash (Medium): 64.8% less intelligence, 77.2% 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.
- Grok 4.3 (Non-reasoning) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
Gemini 3.8 Flash (Medium)Grok 4.3 (Non-reasoning)Today's Pareto frontierEvery other model
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