Grok 4.6 (Medium) vs Kimi K3.1 Pro
Which is better for the money: Grok 4.6 (Medium) by SpaceXAI or Kimi K3.1 Pro by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
Kimi K3.1 Pro scores 12.3 points higher (55.1 vs 42.8) but costs 2.0× as much to run the benchmark ($3117 vs $1557; flagship vs premium cost classes). Pick Kimi K3.1 Pro when the extra intelligence is worth the premium, otherwise Grok 4.6 (Medium).
| Metric | Grok 4.6 (Medium) | Kimi K3.1 Pro | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 42.8 | 55.1 | +28.7% Kimi K3.1 Pro is 28.7% more intelligent |
| Total AA cost (lower is better) | $1,557.04 | $3,117.31 | +100.2% Kimi K3.1 Pro is 2.0× more expensive |
| End-to-end time (lower is better) | 33.09s | 46.58s | +40.8% Kimi K3.1 Pro is 40.8% 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 (Medium): 28.7% more intelligence, 100.2% more cost to run the AA benchmark, and 40.8% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Grok 4.6 (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Kimi K3.1 Pro is on today's frontier: nothing is both smarter and cheaper.
Grok 4.6 (Medium)Kimi K3.1 ProToday'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-medium/kimi-k3-1-pro · Markdown: /api/v1/compare/grok-4-6-medium/kimi-k3-1-pro?format=md · llms.txt · agent skill