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GLM-4.5 vs GPT-4o mini
Comprehensive side-by-side LLM comparison
GLM-4.5 leads with 15.5% higher average benchmark score. GLM-4.5 offers 117.8K more tokens in context window than GPT-4o mini. GPT-4o mini is $1.25 cheaper per million tokens. GPT-4o mini supports multimodal inputs. GLM-4.5 is available on 3 providers. Overall, GLM-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-4o mini is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 63.5% across 9 benchmarks. It excels particularly in HumanEval (87.2%), MGSM (87.0%), MMLU (82.0%). It supports a 144K 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 2024, it represents OpenAI's latest advancement in AI technology.
1 year newer
GPT-4o mini
OpenAI
2024-07-18
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
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GPT-4o mini
Input:$0.15
Output:$0.60($1.25 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 21 common benchmarks
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GLM-4.5
Average Score:42.6%(+15.5%)
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GPT-4o mini
Average Score:27.2%
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Knowledge Cutoff
Training data recency comparison
GPT-4o mini
2023-10-01
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-4o mini
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GLM-4.5
Avg Score:42.6%(+15.5%)
Providers:3
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GPT-4o mini
Avg Score:27.2%
Providers:1