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Grok-3 Mini vs Grok-4 Heavy
Comprehensive side-by-side LLM comparison
Grok-4 Heavy leads with 4.2% higher average benchmark score. Both models have their strengths depending on your specific coding needs.
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xAI
Grok 3 Mini was developed as an efficient version of Grok 3, designed to bring next-generation capabilities to resource-conscious deployments. Built to provide strong performance with practical efficiency, it extends Grok 3's innovations to broader application scenarios.
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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.
4 months newer
Grok-3 Mini
xAI
2025-02-17
Grok-4 Heavy
xAI
2025-07-09
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Performance Metrics
Context window and performance specifications
Average performance across 3 common benchmarks
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Grok-3 Mini
Average Score:85.1%
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Grok-4 Heavy
Average Score:89.3%(+4.2%)
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Knowledge Cutoff
Training data recency comparison
Grok-3 Mini
2024-11-17
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
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Grok-3 Mini
1 providers
xAI
Throughput: 100 tok/s
Latency: 0.7ms
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Grok-4 Heavy
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Grok-3 Mini
Avg Score:85.1%
Providers:1
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Grok-4 Heavy
Avg Score:89.3%(+4.2%)
Providers:0