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GLM-4.5 vs o1-preview
Comprehensive side-by-side LLM comparison
GLM-4.5 leads with 25.9% higher average benchmark score. GLM-4.5 offers 101.4K more tokens in context window than o1-preview. GLM-4.5 is $73.00 cheaper per million tokens. Overall, GLM-4.5 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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OpenAI
o1-preview was introduced as an early version of OpenAI's reasoning model series, designed to demonstrate the potential of AI models that engage in extended thinking before responding. Built to solve complex problems through deliberate reasoning processes, it represented an initial step toward more thoughtful and analytical AI systems.
10 months newer
o1-preview
OpenAI
2024-09-12
GLM-4.5
Zhipu AI
2025-07-28
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Pricing Comparison
Cost per million tokens (USD)
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GLM-4.5
Input:$0.40
Output:$1.60($73.00 cheaper)
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o1-preview
Input:$15.00
Output:$60.00
Performance Metrics
Context window and performance specifications
Average performance across 3 common benchmarks
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GLM-4.5
Average Score:78.1%(+25.9%)
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o1-preview
Average Score:52.2%
Performance comparison across key benchmark categories
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GLM-4.5
Coding64.2%(+22.9%)
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o1-preview
Coding41.3%
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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o1-preview
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GLM-4.5
Avg Score:78.1%(+25.9%)
Providers:3
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o1-preview
Avg Score:52.2%
Providers:2