AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

o1-pro vs GLM-4

OpenAI
o1-pro
Z.ai
GLM-4
Overview
CompanyOpenAIZ.ai
Release dateMar 19 2025Jan 16 2024
AccessProprietaryProprietary
Timeline
Release gapGLM-4 shipped 428 days before o1-pro

Which is better: o1-pro or GLM-4?

o1-pro and GLM-4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4 shipped 428 days before o1-pro, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — o1-pro and GLM-4 don't publish scores on any of the same benchmarks.

Frequently asked questions

o1-pro was released by OpenAI on Mar 19 2025.

GLM-4 was released by Z.ai on Jan 16 2024.

Other comparisons