Grok 4.3 (High) vs Kimi K3 (Low)
Which is better for the money: Grok 4.3 (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
Kimi K3 (Low) scores 5.2 points higher (30.1 vs 24.9) but costs 3.3× as much to run the benchmark ($1190 vs $363; premium vs mid-range cost classes). They are not alternatives at one budget: pick Kimi K3 (Low) when you need intelligence above 24.9, and Grok 4.3 (High) when 24.9 is enough.
| Metric | Grok 4.3 (High) | Kimi K3 (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.9 | 30.1 | +20.9% Kimi K3 (Low) is 20.9% more intelligent |
| Total AA cost (lower is better) | $363.24 | $1,190.42 | +227.7% Kimi K3 (Low) is 3.3× more expensive |
| End-to-end time (lower is better) | 24.88s | 62.29s | +150.4% Kimi K3 (Low) is 150.4% slower |
| Price per 1M tokens (in / out) | $1.25 / $2.50 | $3.00 / $15.0 | |
| Input modalities | Text, Image | Text, Image |
Kimi K3 (Low) vs Grok 4.3 (High): 20.9% more intelligence, 227.7% more cost to run the AA benchmark, and 150.4% 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.
- Kimi K3 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Grok 4.3 (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-4-3/kimi-k3-low · Markdown: /api/v1/compare/grok-4-3/kimi-k3-low?format=md · llms.txt · agent skill