Gemini 3.5 Flash (High) vs Grok 4.3 (High)
Which is better for the money: Gemini 3.5 Flash (High) by Google or Grok 4.3 (High) 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 3.5 Flash (High) scores 7.7 points higher (32.6 vs 24.9) but costs 12× as much to run the benchmark ($4222 vs $363; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Gemini 3.5 Flash (High) when you need intelligence above 24.9, and Grok 4.3 (High) when 24.9 is enough.
| Metric | Gemini 3.5 Flash (High) | Grok 4.3 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 32.6 | 24.9 | −23.6% Grok 4.3 (High) is 23.6% less intelligent |
| Total AA cost (lower is better) | $4,222.12 | $363.24 | −91.4% Grok 4.3 (High) is 91.4% cheaper |
| End-to-end time (lower is better) | 16.46s | 27.84s | +69.1% Grok 4.3 (High) is 69.1% slower |
| Price per 1M tokens (in / out) | $1.50 / $9.00 | $1.25 / $2.50 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Grok 4.3 (High) vs Gemini 3.5 Flash (High): 23.6% less intelligence, 91.4% less cost to run the AA benchmark, and 69.1% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 3.5 Flash (High) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- Grok 4.3 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
Gemini 3.5 Flash (High)Grok 4.3 (High)Today's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-3-5-flash/grok-4-3 · Markdown: /api/v1/compare/gemini-3-5-flash/grok-4-3?format=md · llms.txt · agent skill