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GLM-4.5 vs GPT-4.5
Comprehensive side-by-side LLM comparison
GPT-4.5 leads with 22.5% higher average benchmark score. GLM-4.5 offers 130.0K more tokens in context window than GPT-4.5. GLM-4.5 is $223.00 cheaper per million tokens. GPT-4.5 supports multimodal inputs. GLM-4.5 is available on 3 providers. Overall, GPT-4.5 is the stronger choice for coding tasks.
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Zhipu AI
GLM-4.5 is a language model developed by Zhipu AI. It achieves strong performance with an average score of 64.0% across 14 benchmarks. It excels particularly in MATH-500 (98.2%), AIME 2024 (91.0%), MMLU-Pro (84.6%). It supports a 262K token context window for handling large documents. The model is available through 3 API providers. 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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OpenAI
GPT-4.5 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 63.1% across 27 benchmarks. It excels particularly in GSM8k (97.0%), MMLU (90.8%), CharXiv-D (90.0%). It supports a 132K token context window for handling large documents. 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 OpenAI's latest advancement in AI technology.
5 months newer
GPT-4.5
OpenAI
2025-02-27
GLM-4.5
Zhipu AI
2025-07-28
Pricing Comparison
Cost per million tokens (USD)
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GLM-4.5
Input:$0.40
Output:$1.60($223.00 cheaper)
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GPT-4.5
Input:$75.00
Output:$150.00
Performance Metrics
Context window and performance specifications
Average performance across 36 common benchmarks
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GLM-4.5
Average Score:24.9%
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GPT-4.5
Average Score:47.3%(+22.5%)
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-4.5
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GLM-4.5
Avg Score:24.9%
Providers:3
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GPT-4.5
Avg Score:47.3%(+22.5%)
Providers:1