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GPT-5 Codex vs GPT-5.2 Codex
Comprehensive side-by-side LLM comparison
GPT-5.2 Codex leads with 12.0% higher average benchmark score. Overall, GPT-5.2 Codex is the stronger choice for coding tasks.
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OpenAI
GPT-5 Codex, released by OpenAI in August 2025, is a coding-specialized large language model from the GPT-5 family engineered for software engineering, code generation, and agentic development workflows. It builds on GPT-5's architecture with optimizations targeting multi-file code editing, test generation, and automated debugging. GPT-5 Codex targets developers and agentic coding tools requiring a model tuned specifically for programming tasks.
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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
GPT-5 Codex
OpenAI
2025-08
GPT-5.2 Codex
OpenAI
2026-01-14
Average performance across 2 common benchmarks
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GPT-5 Codex
Average Score:43.7%
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GPT-5.2 Codex
Average Score:55.8%(+12.0%)
Performance comparison across key benchmark categories
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GPT-5 Codex
Coding43.7%
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GPT-5.2 Codex
Coding55.8%(+12.0%)
Provider Availability & Performance
Available providers and their performance metrics
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GPT-5 Codex
0 providers
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GPT-5.2 Codex
0 providers
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GPT-5 Codex
Avg Score:43.7%
Providers:0
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GPT-5.2 Codex
Avg Score:55.8%(+12.0%)
Providers:0