Grok-4 Heavy
Multimodal
Zero-eval
#1AIME 2025
#1HMMT25
#1GPQA
+3 more
by xAI
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About
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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Timeline
AnnouncedJul 9, 2025
ReleasedJul 9, 2025
Knowledge CutoffDec 31, 2024
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Specifications
Capabilities
Multimodal
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License & Family
License
Proprietary
Performance Overview
Performance metrics and category breakdown
Overall Performance
6 benchmarks
Average Score
79.5%
Best Score
100.0%
High Performers (80%+)
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All Benchmark Results for Grok-4 Heavy
Complete list of benchmark scores with detailed information
| AIME 2025 | text | 1.00 | 100.0% | Self-reported | |
| HMMT25 | text | 0.97 | 96.7% | Self-reported | |
| GPQA | text | 0.88 | 88.4% | Self-reported | |
| LiveCodeBench | text | 0.79 | 79.4% | Self-reported | |
| USAMO25 | text | 0.62 | 61.9% | Self-reported | |
| Humanity's Last Exam | multimodal | 0.51 | 50.7% | Self-reported |