GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
Tested on 9 benchmarks with 70.6% average. Top scores: LiveBench — Mathematics (88.8%), LiveBench — Coding (83.6%), LiveBench — Data Analysis (78.2%).
GLM 5.1 scores 87.0 (102% as good) at $1.05/1M input · 40% cheaper
Regularly refreshed coding problems that avoid data contamination. New problems added monthly to prevent memorization.
LiveBench coding tasks that require multi-step reasoning and tool use. Tests planning and execution of complex coding workflows.
Fresh data analysis tasks testing ability to interpret tables, charts, and statistical data.
Regularly refreshed reasoning problems testing logical deduction, spatial reasoning, and analytical thinking.
Regularly updated math problems that test numerical reasoning, algebra, calculus, and combinatorics.
- Typemultimodal
- Context400K tokens (~200 books)
- ReleasedJan 2026
- LicenseProprietary
- StatusActive
- Cost / Message~$0.018