+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Grok-2 vs Grok-4 Heavy
Comprehensive side-by-side LLM comparison
Grok-4 Heavy leads with 32.4% higher average benchmark score. Overall, Grok-4 Heavy is the stronger choice for coding tasks.
+
+
+
+
xAI
Grok 2 was developed as the second generation of xAI's language model family, designed to provide enhanced reasoning, knowledge, and conversational abilities. Built with architectural improvements and expanded training, it represents a significant advancement in xAI's model capabilities.
+
+
+
+
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.
11 months newer
Grok-2
xAI
2024-08-13
Grok-4 Heavy
xAI
2025-07-09
+
+
+
+
+
+
+
+
+
+
+
+
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
+
+
+
+
Grok-2
Average Score:56.0%
+
+
+
+
Grok-4 Heavy
Average Score:88.4%(+32.4%)
+
+
+
+
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-2
1 providers
xAI
Throughput: 85 tok/s
Latency: 0.7ms
+
+
+
+
Grok-4 Heavy
+
+
+
+
Grok-2
Avg Score:56.0%
Providers:1
+
+
+
+
Grok-4 Heavy
Avg Score:88.4%(+32.4%)
Providers:0