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Grok 4.20 0309 vs Kimi K2 Base

xAI vs Moonshot AI — benchmarks, pricing, and capabilities side by side.

  • Grok 4.20 0309 has the higher intelligence index (88.5 vs 50.2)
Grok 4.20 0309Kimi K2 Base
Intelligence index88.550.2
DeveloperxAIMoonshot AI
TypeLLMLLM
AccessOpen weights
Context window
Input price$2.00 / 1M
Output price$6.00 / 1M
Speed97 tok/s
ReleasedMarch 10, 2026July 11, 2025
Parameters1000000000000
Input modalities
Output modalities

Shared benchmarks

Grok 4.20 0309
Kimi K2 Base
GPQA Diamond
88.5
48.1