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

o1-pro vs GLM-4-Plus

OpenAI
o1-pro
Z.ai
GLM-4-Plus
Overview
CompanyOpenAIZ.ai
Release dateMar 19 2025Aug 29 2024
AccessProprietaryProprietary
Timeline
Release gapGLM-4-Plus shipped 202 days before o1-pro

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

o1-pro and GLM-4-Plus don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4-Plus shipped 202 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-Plus 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-Plus was released by Z.ai on Aug 29 2024.

Other comparisons