Grok 4.3 (High) vs Grok 4.6 (Xhigh)
Which is better for the money: Grok 4.3 (High) by SpaceXAI or Grok 4.6 (Xhigh) 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
Grok 4.6 (Xhigh) scores 19.3 points higher (44.2 vs 24.9) but costs 6.2× as much to run the benchmark ($2242 vs $363; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Grok 4.6 (Xhigh) when you need intelligence above 24.9, and Grok 4.3 (High) when 24.9 is enough.
| Metric | Grok 4.3 (High) | Grok 4.6 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.9 | 44.2 | +77.5% Grok 4.6 (Xhigh) is 77.5% more intelligent |
| Total AA cost (lower is better) | $363.24 | $2,241.91 | +517.2% Grok 4.6 (Xhigh) is 6.2× more expensive |
| End-to-end time (lower is better) | 28.87s | 37.86s | +31.1% Grok 4.6 (Xhigh) is 31.1% slower |
| Price per 1M tokens (in / out) | $1.25 / $2.50 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.6 (Xhigh) vs Grok 4.3 (High): 77.5% more intelligence, 517.2% more cost to run the AA benchmark, and 31.1% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Grok 4.3 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
- Grok 4.6 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
Grok 4.3 (High)Grok 4.6 (Xhigh)Today's Pareto frontierEvery other model
Matchup
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