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GLM-4.5 vs GPT-5
Comprehensive side-by-side LLM comparison
GPT-5 leads with 15.3% higher average benchmark score. GPT-5 offers 265.9K more tokens in context window than GLM-4.5. GLM-4.5 is $9.25 cheaper per million tokens. GPT-5 supports multimodal inputs. Overall, GPT-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
GPT-5 represents the next generation of OpenAI's foundational models, developed to advance the frontier of AI capabilities in reasoning, knowledge, and general intelligence. Built to push beyond the limitations of GPT-4, it incorporates architectural and training improvements designed to enhance performance across diverse tasks and domains.
10 days newer
GLM-4.5
Zhipu AI
2025-07-28
GPT-5
OpenAI
2025-08-07
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Pricing Comparison
Cost per million tokens (USD)
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GLM-4.5
Input:$0.40
Output:$1.60($9.25 cheaper)
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GPT-5
Input:$1.25
Output:$10.00
Performance Metrics
Context window and performance specifications
Average performance across 3 common benchmarks
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GLM-4.5
Average Score:56.6%
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GPT-5
Average Score:71.8%(+15.3%)
Performance comparison across key benchmark categories
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GLM-4.5
Coding64.2%
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GPT-5
Coding74.9%(+10.7%)
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Knowledge Cutoff
Training data recency comparison
GPT-5
2024-09-30
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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GPT-5
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GLM-4.5
Avg Score:56.6%
Providers:3
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GPT-5
Avg Score:71.8%(+15.3%)
Providers:2