Grok 4.6 (Xhigh) vs Kimi K3.1 Pro
Which is better for the money: Grok 4.6 (Xhigh) by SpaceXAI or Kimi K3.1 Pro by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Kimi K3.1 Pro scores 10.9 points higher (55.1 vs 44.2) but costs 1.4× as much to run the benchmark ($3117 vs $2242; both flagship class). Pick Kimi K3.1 Pro when the extra intelligence is worth the premium, otherwise Grok 4.6 (Xhigh).
| Metric | Grok 4.6 (Xhigh) | Kimi K3.1 Pro | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 44.2 | 55.1 | +24.7% Kimi K3.1 Pro is 24.7% more intelligent |
| Total AA cost (lower is better) | $2,241.91 | $3,117.31 | +39.0% Kimi K3.1 Pro is 39.0% more expensive |
| End-to-end time (lower is better) | 32.45s | 42.64s | +31.4% Kimi K3.1 Pro is 31.4% slower |
| Price per 1M tokens (in / out) | $2.00 / $6.00 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
Kimi K3.1 Pro vs Grok 4.6 (Xhigh): 24.7% more intelligence, 39.0% more cost to run the AA benchmark, and 31.4% slower 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.
- Kimi K3.1 Pro is on today's frontier: nothing is both smarter and cheaper.
Grok 4.6 (Xhigh)Kimi K3.1 ProToday's Pareto frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/grok-4-6-xhigh/kimi-k3-1-pro · Markdown: /api/v1/compare/grok-4-6-xhigh/kimi-k3-1-pro?format=md · llms.txt · agent skill