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GPT-4o mini vs Grok-4 Heavy
Comprehensive side-by-side LLM comparison
Grok-4 Heavy leads with 48.2% higher average benchmark score. Overall, Grok-4 Heavy is the stronger choice for coding tasks.
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OpenAI
GPT-4o Mini was created as a smaller, more efficient variant of GPT-4o, designed to bring multimodal capabilities to applications requiring faster response times and lower costs. Built to democratize access to advanced vision and text understanding, it enables developers to build sophisticated applications with reduced resource requirements.
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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.
11 months newer
GPT-4o mini
OpenAI
2024-07-18
Grok-4 Heavy
xAI
2025-07-09
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Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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GPT-4o mini
Average Score:40.2%
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Grok-4 Heavy
Average Score:88.4%(+48.2%)
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Knowledge Cutoff
Training data recency comparison
GPT-4o mini
2023-10-01
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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GPT-4o mini
1 providers
Azure
Throughput: 92 tok/s
Latency: 0.52ms
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Grok-4 Heavy
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GPT-4o mini
Avg Score:40.2%
Providers:1
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Grok-4 Heavy
Avg Score:88.4%(+48.2%)
Providers:0