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

o3-mini-high vs GLM-4.6

OpenAI
o3-mini-high
Z.ai
GLM-4.6
Overview
CompanyOpenAIZ.ai
Release dateJan 31 2025Sep 30 2025
AccessProprietaryOpen Weight
Specifications
Parameters
355B
Context window
200k
Benchmarks
Coding
SWE-Bench Verified
68%
Timeline
Release gapo3-mini-high shipped 242 days before GLM-4.6

Which is better: o3-mini-high or GLM-4.6?

o3-mini-high and GLM-4.6 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o3-mini-high shipped 242 days before GLM-4.6, so benchmark comparisons should account for the intervening progress.

o3-mini-high is proprietary, while GLM-4.6 is open weight.

Direct benchmark comparisons are unavailable — o3-mini-high and GLM-4.6 don't publish scores on any of the same benchmarks.

Frequently asked questions

o3-mini-high was released by OpenAI on Jan 31 2025.

GLM-4.6 was released by Z.ai on Sep 30 2025.

o3-mini-high is a proprietary model released by OpenAI. GLM-4.6 is an open weight model released by Z.ai.

Other comparisons