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GLM-4.5 Air vs GPT-5.2
Comprehensive side-by-side LLM comparison
GPT-5.2 leads with 26.6% higher average benchmark score. GPT-5.2 supports multimodal inputs. Overall, GPT-5.2 is the stronger choice for coding tasks.
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Zhipu AI
GLM-4.5 Air is a lightweight variant from Zhipu AI's GLM-4 model family, designed for efficient deployments requiring lower inference cost while maintaining strong language understanding and generation capabilities. It targets cost-sensitive production workloads, API integrations, and applications where the full GLM-4.x series capacity exceeds requirements.
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OpenAI
GPT-5.2, released by OpenAI on December 11, 2025, is a large language model from the GPT-5 family that improves on GPT-5 in general intelligence, long-context understanding, agentic tool-calling, and vision. It features a 400K token context window, 128K maximum output tokens, and a knowledge cutoff of August 2025. GPT-5.2 targets long-context coding tasks, extended document analysis, and complex agentic workflows requiring reliable instruction following.
4 months newer
GLM-4.5 Air
Zhipu AI
2025-07-28
GPT-5.2
OpenAI
2025-12-11
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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GLM-4.5 Air
Average Score:34.0%
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GPT-5.2
Average Score:60.6%(+26.6%)
Performance comparison across key benchmark categories
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GLM-4.5 Air
Tool Use34.0%
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GPT-5.2
Tool Use60.6%(+26.6%)
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Knowledge Cutoff
Training data recency comparison
GPT-5.2
2025-08
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 Air
1 providers
Zhipu AI
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GPT-5.2
0 providers
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GLM-4.5 Air
Avg Score:34.0%
Providers:1
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GPT-5.2
Avg Score:60.6%(+26.6%)
Providers:0