+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Grok-4 Heavy vs Kimi K2 Base
Comprehensive side-by-side LLM comparison
Grok-4 Heavy leads with 40.3% higher average benchmark score. Grok-4 Heavy supports multimodal inputs. Overall, Grok-4 Heavy is the stronger choice for coding tasks.
+
+
+
+
xAI
Grok 4 Heavy was created as a larger, more capable variant of Grok 4, designed to provide maximum reasoning depth and analytical capability. Built for the most demanding applications requiring sophisticated problem-solving, it represents xAI's flagship offering in the fourth generation.
+
+
+
+
Moonshot AI
Kimi K2 Base was created as the foundation model in the K2 series, designed to serve as a starting point for fine-tuning and customization. Built to provide strong base capabilities for domain-specific applications, it enables developers to build specialized solutions on Moonshot's architecture.
2 days newer
Grok-4 Heavy
xAI
2025-07-09
Kimi K2 Base
Moonshot AI
2025-07-11
+
+
+
+
+
+
+
+
+
+
+
+
Average performance across 1 common benchmarks
+
+
+
+
Grok-4 Heavy
Average Score:88.4%(+40.3%)
+
+
+
+
Kimi K2 Base
Average Score:48.1%
+
+
+
+
Knowledge Cutoff
Training data recency comparison
Grok-4 Heavy
2024-12-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
Grok-4 Heavy
0 providers
+
+
+
+
Kimi K2 Base
0 providers
+
+
+
+
Grok-4 Heavy
Avg Score:88.4%(+40.3%)
Providers:0
+
+
+
+
Kimi K2 Base
Avg Score:48.1%
Providers:0