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GPT-4.1 vs Grok-4 Heavy
Comprehensive side-by-side LLM comparison
GPT-4.1 leads with 37.1% higher average benchmark score. Overall, GPT-4.1 is the stronger choice for coding tasks.
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OpenAI
GPT-4.1 is a multimodal language model developed by OpenAI. The model shows competitive results across 30 benchmarks. It excels particularly in MMLU (90.2%), CharXiv-D (87.9%), IFEval (87.4%). With a 1.1M token context window, it can handle extensive documents and complex multi-turn conversations. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI's latest advancement in AI technology.
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xAI
Grok-4 Heavy is a multimodal language model developed by xAI. It achieves strong performance with an average score of 79.5% across 6 benchmarks. It excels particularly in AIME 2025 (100.0%), HMMT25 (96.7%), GPQA (88.4%). As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents xAI's latest advancement in AI technology.
2 months newer
GPT-4.1
OpenAI
2025-04-14
Grok-4 Heavy
xAI
2025-07-09
Performance Metrics
Context window and performance specifications
Average performance across 33 common benchmarks
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GPT-4.1
Average Score:51.6%(+37.1%)
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Grok-4 Heavy
Average Score:14.5%
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Knowledge Cutoff
Training data recency comparison
GPT-4.1
2024-06-01
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-4.1
1 providers
OpenAI
Throughput: 100 tok/s
Latency: 10ms
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Grok-4 Heavy
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GPT-4.1
Avg Score:51.6%(+37.1%)
Providers:1
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Grok-4 Heavy
Avg Score:14.5%
Providers:0