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

Mistral Medium 3.5 vs GLM-4.6

Mistral
Mistral Medium 3.5
Z.ai
GLM-4.6
Overview
CompanyMistralZ.ai
Release dateApr 29 2026Sep 30 2025
AccessOpen WeightOpen Weight
Specifications
Parameters
128B
355B
Context window
256k
200k
Benchmarks
Coding
SWE-Bench Verified
77.6%Best
68%
Timeline
Release gapGLM-4.6 shipped 211 days before Mistral Medium 3.5

Which is better: Mistral Medium 3.5 or GLM-4.6?

Mistral Medium 3.5 leads GLM-4.6 on 1 of the 1 benchmark they both report (SWE-Bench Verified). GLM-4.6 shipped 211 days before Mistral Medium 3.5, so benchmark comparisons should account for the intervening progress.

Mistral Medium 3.5 has 128B parameters, while GLM-4.6 has 355B. Context windows are 256k (Mistral Medium 3.5) vs 200k (GLM-4.6).

On SWE-Bench Verified, Mistral Medium 3.5 leads at 77.6% vs GLM-4.6 at 68%.

Frequently asked questions

Mistral Medium 3.5 was released by Mistral on Apr 29 2026.

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

Mistral Medium 3.5 leads on SWE-Bench Verified — Mistral Medium 3.5 77.6% vs GLM-4.6 68%.

Mistral Medium 3.5 has a 256k context window; GLM-4.6 has 200k.

Other comparisons