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GLM-4.5-Air vs Grok-4 Heavy
Comprehensive side-by-side LLM comparison
GLM-4.5-Air leads with 20.8% higher average benchmark score. Grok-4 Heavy supports multimodal inputs. Overall, GLM-4.5-Air is the stronger choice for coding tasks.
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Zhipu AI
GLM-4.5-Air is a language model developed by Zhipu AI. It achieves strong performance with an average score of 60.8% across 14 benchmarks. It excels particularly in MATH-500 (98.1%), AIME 2024 (89.4%), MMLU-Pro (81.4%). It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents Zhipu AI'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.
19 days newer
Grok-4 Heavy
xAI
2025-07-09
GLM-4.5-Air
Zhipu AI
2025-07-28
Average performance across 18 common benchmarks
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GLM-4.5-Air
Average Score:47.3%(+20.8%)
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Grok-4 Heavy
Average Score:26.5%
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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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GLM-4.5-Air
0 providers
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Grok-4 Heavy
0 providers
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GLM-4.5-Air
Avg Score:47.3%(+20.8%)
Providers:0
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Grok-4 Heavy
Avg Score:26.5%
Providers:0