kimi-k3 vs grok-4.3 Benchmark Comparison
Direct benchmark comparison between kimi-k3 and grok-4.3 based on LMArena Elo and the latest 2026 API pricing.
Direct Technical & Pricing Comparison
| Frontier Model |
LMArena Elo |
API Cost (1M) |
Throughput |
| kimi-k3 |
1486 |
$0.000003 |
23 |
| grok-4.3 |
1442 |
$0.00000125 |
109 |
*These models represent the Pareto Frontier (optimal cost-to-performance).*
Comparison Summary: kimi-k3 is the more capable model in this pair, leading by 44 Elo points.