Grok 4.6 (Xhigh) vs Mercury 2
Which is better for the money: Grok 4.6 (Xhigh) by SpaceXAI or Mercury 2 by Inception? 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 33.4 points higher (44.2 vs 10.8) but costs 21× as much to run the benchmark ($2242 vs $105; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Grok 4.6 (Xhigh) when you need intelligence above 10.8, and Mercury 2 when 10.8 is enough.
| Metric | Grok 4.6 (Xhigh) | Mercury 2 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 44.2 | 10.8 | −75.6% Mercury 2 is 75.6% less intelligent |
| Total AA cost (lower is better) | $2,241.91 | $104.94 | −95.3% Mercury 2 is 95.3% cheaper |
| End-to-end time (lower is better) | 37.48s | 6.56s | −82.5% Mercury 2 is 82.5% faster |
| Price per 1M tokens (in / out) | $2.00 / $6.00 | $0.25 / $0.75 | |
| Input modalities | Text, Image | Text |
Mercury 2 vs Grok 4.6 (Xhigh): 75.6% less intelligence, 95.3% less cost to run the AA benchmark, and 82.5% faster end-to-end.
Today's Pareto frontier
Against the frontier
- 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.
- Mercury 2 is off the frontier: at the same or lower cost, Claude Haiku 5.5 (High) scores 37.80 for $94.1.
Grok 4.6 (Xhigh)Mercury 2Today'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/grok-4-6-xhigh/mercury-2 · Markdown: /api/v1/compare/grok-4-6-xhigh/mercury-2?format=md · llms.txt · agent skill