+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Claude Opus 4.1 vs Grok-4 Heavy
Comprehensive side-by-side LLM comparison
Grok-4 Heavy leads with 14.7% higher average benchmark score. Claude Opus 4.1 is available on 4 providers. Overall, Grok-4 Heavy is the stronger choice for coding tasks.
+
+
+
+
Anthropic
Claude Opus 4.1 represents an iteration within the Claude 4 Opus line, built to deliver refined performance in complex reasoning and analysis tasks. Developed as part of Anthropic's flagship tier, it incorporates improvements to the foundational capabilities that define the Opus family of models.
+
+
+
+
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.
27 days newer
Grok-4 Heavy
xAI
2025-07-09
Claude Opus 4.1
Anthropic
2025-08-05
+
+
+
+
+
+
+
+
+
+
+
+
Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
+
+
+
+
Claude Opus 4.1
Average Score:79.5%
+
+
+
+
Grok-4 Heavy
Average Score:94.2%(+14.7%)
+
+
+
+
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
+
+
+
+
Claude Opus 4.1
4 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.5ms
Bedrock
Throughput: 120 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
ZeroEval
Throughput: 42 tok/s
Latency: 0.4ms
+
+
+
+
Claude Opus 4.1
Avg Score:79.5%
Providers:4
+
+
+
+
Grok-4 Heavy
Avg Score:94.2%(+14.7%)
Providers:0