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GLM-4.6 vs Grok 4 Fast
Comprehensive side-by-side LLM comparison
Grok 4 Fast leads with 1.3% higher average benchmark score. Grok 4 Fast offers 1.8M more tokens in context window than GLM-4.6. Grok 4 Fast is $1.90 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
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Zhipu AI
GLM-4.6 was introduced as an enhanced iteration of the GLM-4 series, designed to provide improved capabilities in bilingual language understanding and generation. Built to incorporate refinements to the GLM architecture, it represents continued advancement in Zhipu AI's model development.
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xAI
Grok 4 Fast is a multimodal language model developed by xAI. It achieves strong performance with an average score of 73.0% across 7 benchmarks. It excels particularly in SimpleQA (95.0%), HMMT 2025 (93.3%), AIME 2025 (92.0%). With a 2.0M 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 xAI's latest advancement in AI technology.
1 month newer
Grok 4 Fast
xAI
2025-08-28
GLM-4.6
Zhipu AI
2025-09-30
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Pricing Comparison
Cost per million tokens (USD)
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GLM-4.6
Input:$0.60
Output:$2.00
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Grok 4 Fast
Input:$0.20
Output:$0.50($1.90 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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GLM-4.6
Average Score:59.3%
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Grok 4 Fast
Average Score:60.7%(+1.3%)
Provider Availability & Performance
Available providers and their performance metrics
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GLM-4.6
2 providers
DeepInfra
Throughput: 85 tok/s
Latency: 0.7ms
ZeroEval
Throughput: 85 tok/s
Latency: 0.7ms
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Grok 4 Fast
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GLM-4.6
Avg Score:59.3%
Providers:2
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Grok 4 Fast
Avg Score:60.7%(+1.3%)
Providers:1