Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
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.
OpenAI
GPT-5.2 Codex is a coding-specialized variant from the GPT-5.2 family, designed for software engineering workflows including automated code generation, multi-file editing, and agentic development. It builds on GPT-5.2's improved instruction following and long-context capabilities, with optimizations specifically targeting programming tasks and agentic software workflows.
5 months newer
GLM-4.5 Air
Zhipu AI
2025-07-28

GPT-5.2 Codex
OpenAI
2026-01-14
Context window and performance specifications
Available providers and their performance metrics
GLM-4.5 Air
Zhipu AI
GPT-5.2 Codex
GLM-4.5 Air
GPT-5.2 Codex
GLM-4.5 Air
GPT-5.2 Codex