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GLM-4.5-Air vs GPT-4o
Comprehensive side-by-side LLM comparison
GLM-4.5-Air leads with 24.6% higher average benchmark score. GPT-4o supports multimodal inputs. GPT-4o is available on 2 providers. Overall, GLM-4.5-Air is the stronger choice for coding tasks.
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Zhipu AI
GLM-4.5 Air was created as a lightweight variant of GLM-4.5, designed to provide strong bilingual capabilities with improved efficiency. Built to serve applications requiring practical deployment with reduced resource requirements, it extends GLM-4.5's multilingual strengths to resource-conscious scenarios.
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OpenAI
This updated version of GPT-4o was released with refinements to its multimodal capabilities and improved performance across text, vision, and audio tasks. Built to incorporate learnings from the initial GPT-4o deployment, it enhanced reliability and accuracy while maintaining the seamless cross-modal reasoning that defines the GPT-4o family.
11 months newer
GPT-4o
OpenAI
2024-08-06
GLM-4.5-Air
Zhipu AI
2025-07-28
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Performance Metrics
Context window and performance specifications
Average performance across 6 common benchmarks
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GLM-4.5-Air
Average Score:73.7%(+24.6%)
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GPT-4o
Average Score:49.0%
Performance comparison across key benchmark categories
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GLM-4.5-Air
Coding57.6%(+24.4%)
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GPT-4o
Coding33.2%
Provider Availability & Performance
Available providers and their performance metrics
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GLM-4.5-Air
0 providers
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GPT-4o
2 providers
Azure
Throughput: 99 tok/s
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GLM-4.5-Air
Avg Score:73.7%(+24.6%)
Providers:0
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GPT-4o
Avg Score:49.0%
Providers:2