Grok 4.5 (High) vs Kimi K3 (Low)
Which is better for the money: Grok 4.5 (High) by SpaceXAI or Kimi K3 (Low) 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
Grok 4.5 (High) scores 8.7 points higher (38.8 vs 30.1) but costs 1.0× as much to run the benchmark ($1244 vs $1190; both premium class). Pick Grok 4.5 (High) when the extra intelligence is worth the premium, otherwise Kimi K3 (Low).
| Metric | Grok 4.5 (High) | Kimi K3 (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.8 | 30.1 | −22.4% Kimi K3 (Low) is 22.4% less intelligent |
| Total AA cost (lower is better) | $1,243.85 | $1,190.42 | −4.3% Kimi K3 (Low) is 4.3% cheaper |
| End-to-end time (lower is better) | 19.24s | 57.21s | +197.3% Kimi K3 (Low) is 197.3% slower |
| Price per 1M tokens (in / out) | $2.00 / $6.00 | $3.00 / $15.0 | |
| Input modalities | Text, Image | Text, Image |
Kimi K3 (Low) vs Grok 4.5 (High): 22.4% less intelligence, 4.3% less cost to run the AA benchmark, and 197.3% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Grok 4.5 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Kimi K3 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Grok 4.5 (High)Kimi K3 (Low)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/grok-4-5/kimi-k3-low · Markdown: /api/v1/compare/grok-4-5/kimi-k3-low?format=md · llms.txt · agent skill