GLM 5.2 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level software engineering,...
Tested on 13 benchmarks with 76.2% average. Top scores: Chatbot Arena Elo — Coding (1593.3%), Chatbot Arena Elo — Overall (1471.0%), LiveBench — Mathematics (89.8%).
Step 3.5 Flash scores 89.5 (97% as good) at $0.09/1M input · 91% 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.
Regularly refreshed reasoning problems testing logical deduction, spatial reasoning, and analytical thinking.
Fresh data analysis tasks testing ability to interpret tables, charts, and statistical data.
Regularly updated math problems that test numerical reasoning, algebra, calculus, and combinatorics.
- Typetext
- Context1.0M tokens (~524 books)
- ReleasedJun 2026
- LicenseOpen Source
- StatusActive
- Cost / Message~$0.006