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

gpt-oss-20b vs ChatGLM-6B

OpenAI
gpt-oss-20b
Z.ai
ChatGLM-6B
Overview
CompanyOpenAIZ.ai
Release dateAug 5 2025Mar 14 2023
AccessOpen WeightOpen Weight
Specifications
Parameters
6B
Timeline
Release gapChatGLM-6B shipped 875 days before gpt-oss-20b

Which is better: gpt-oss-20b or ChatGLM-6B?

gpt-oss-20b and ChatGLM-6B don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. ChatGLM-6B shipped 875 days before gpt-oss-20b, 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 — gpt-oss-20b and ChatGLM-6B don't publish scores on any of the same benchmarks.

Frequently asked questions

gpt-oss-20b was released by OpenAI on Aug 5 2025.

ChatGLM-6B was released by Z.ai on Mar 14 2023.

Other comparisons