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GLM-4.5 vs Grok-4 Heavy
Comprehensive side-by-side LLM comparison
Grok-4 Heavy leads with 7.9% higher average benchmark score. Grok-4 Heavy supports multimodal inputs. GLM-4.5 is available on 3 providers. Overall, Grok-4 Heavy is the stronger choice for coding tasks.
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Zhipu AI
GLM-4.5 was developed by Zhipu AI as an advanced bilingual language model, designed to excel at both Chinese and English language tasks. Built to serve diverse applications across multiple languages, it represents Zhipu AI's commitment to multilingual AI capabilities.
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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.
19 days newer
Grok-4 Heavy
xAI
2025-07-09
GLM-4.5
Zhipu AI
2025-07-28
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Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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GLM-4.5
Average Score:76.0%
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Grok-4 Heavy
Average Score:83.9%(+7.9%)
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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
3 providers
DeepInfra
Novita
ZeroEval
Throughput: 85 tok/s
Latency: 0.7ms
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Grok-4 Heavy
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GLM-4.5
Avg Score:76.0%
Providers:3
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Grok-4 Heavy
Avg Score:83.9%(+7.9%)
Providers:0