Smartest Z.ai Models

Match · Updated July 2026

The smartest Z.ai model is GLM 5.2, scoring 51.1 on the Artificial Analysis Intelligence Index. GLM 5.1 (40.2) and GLM 5 (39.5) round out the top three.

51.1Intelligence

$0.966Input /M

1.0MContext

The smartest AI models ranked by the Artificial Analysis Intelligence Index — a composite of reasoning, knowledge, math and science benchmarks. These are the most intelligent large language models available today.

Frequently asked

What is the smartest Z.ai model?

The smartest Z.ai model is GLM 5.2, scoring 51.1 on the Artificial Analysis Intelligence Index. GLM 5.1 (40.2) and GLM 5 (39.5) round out the top three.

What's a good alternative to GLM 5.2?

GLM 5.1 (40.2) is the closest alternative on this metric, followed by GLM 5 (39.5). See the full ranking above for the tradeoffs.

How many Z.ai models are there?

modelgrep tracks 12 Z.ai models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by GLM 5.2. 12 of them qualify for this ranking.

More Z.ai rankings

Z.ai: Best LLMs for Coding Z.ai: Best LLMs for Design & Frontend Z.ai: Fastest LLMs Z.ai: Lowest-Latency LLMs Z.ai: Cheapest LLMs Z.ai: Best Free LLMs Z.ai: Best Reasoning LLMs Z.ai: Best Vision LLMs Z.ai: Best LLMs for Agents Z.ai: Best Open-Source LLMs Z.ai: Longest-Context LLMs Z.ai: Best LLMs for Writing Z.ai: Best LLMs for Math & Science Z.ai: Best LLMs for RAG Z.ai: Best LLMs for SQL & Data Analysis Z.ai: Best LLMs for Roleplay Z.ai: Best Uncensored LLMs

All rankings

Small & Fast LLMs Best Local LLMs Best LLMs for Coding Best LLMs for Design & Frontend Fastest LLMs Lowest-Latency LLMs Cheapest LLMs Best Free LLMs Best Reasoning LLMs Best Vision LLMs Best LLMs for Agents Best Open-Source LLMs Longest-Context LLMs Best LLMs for Writing Best LLMs for Math & Science Best LLMs for RAG Best LLMs for SQL & Data Analysis Best LLMs for Roleplay Best Uncensored LLMs