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GLM-4.5 Air vs GPT-5.3 Codex
Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
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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-5.3 Codex, released by OpenAI in February 2026, is a coding-specialized large language model from the GPT-5.3 family. It targets software engineering workflows including automated code generation, test writing, and agentic multi-file editing, built on the incremental improvements of the GPT-5.3 generation.
6 months newer
GLM-4.5 Air
Zhipu AI
2025-07-28
GPT-5.3 Codex
OpenAI
2026-02
Performance Metrics
Context window and performance specifications
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-5.3 Codex
0 providers
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GLM-4.5 Air
Avg Score:0.0%
Providers:1
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GPT-5.3 Codex
Avg Score:0.0%
Providers:0