Gemini 3.8 Flash (Medium) vs Grok 4.5 (High)
Which is better for the money: Gemini 3.8 Flash (Medium) by Google or Grok 4.5 (High) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Clear winner
Verdict
Pick Gemini 3.8 Flash (Medium)
Grok 4.5 (High) vs Gemini 3.8 Flash (Medium): 2.5% less intelligence, 13.1% more cost to run the AA benchmark, and end-to-end time not fully reported.
| Metric | Gemini 3.8 Flash (Medium) | Grok 4.5 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 39.8 | 38.8 | −2.5% Grok 4.5 (High) is 2.5% less intelligent |
| Total AA cost (lower is better) | $1,100.06 | $1,243.85 | +13.1% Grok 4.5 (High) is 13.1% more expensive |
| End-to-end time (lower is better) | Not reported | 18.82s | — not comparable |
| Price per 1M tokens (in / out) | $0.75 / $3.75 | $2.00 / $6.00 | |
| 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, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Grok 4.5 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Gemini 3.8 Flash (Medium)Grok 4.5 (High)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-3-8-flash-medium/grok-4-5 · Markdown: /api/v1/compare/gemini-3-8-flash-medium/grok-4-5?format=md · llms.txt · agent skill