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Grok-4 Heavy vs o1-preview
Comprehensive side-by-side LLM comparison
o1-preview leads with 3.2% higher average benchmark score. Grok-4 Heavy supports multimodal inputs. o1-preview is available on 2 providers. Both models have their strengths depending on your specific coding needs.
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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.
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OpenAI
o1-preview is a language model developed by OpenAI. It achieves strong performance with an average score of 64.8% across 8 benchmarks. It excels particularly in MGSM (90.8%), MMLU (90.8%), MATH (85.5%). It supports a 161K token context window for handling large documents. The model is available through 2 API providers. Released in 2024, it represents OpenAI's latest advancement in AI technology.
10 months newer
o1-preview
OpenAI
2024-09-12
Grok-4 Heavy
xAI
2025-07-09
Performance Metrics
Context window and performance specifications
Average performance across 13 common benchmarks
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Grok-4 Heavy
Average Score:36.7%
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o1-preview
Average Score:39.9%(+3.2%)
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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
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Grok-4 Heavy
0 providers
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o1-preview
2 providers
Azure
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Grok-4 Heavy
Avg Score:36.7%
Providers:0
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o1-preview
Avg Score:39.9%(+3.2%)
Providers:2