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

Mistral Medium 3.5 vs GPT-4 Turbo

Mistral
Mistral Medium 3.5
OpenAI
GPT-4 Turbo
Overview
CompanyMistralOpenAI
Release dateApr 29 2026Nov 6 2023
AccessOpen WeightProprietary
Specifications
Parameters
128B
Context window
256k
128k
Benchmarks
Coding
SWE-Bench Verified
77.6%
Timeline
Release gapGPT-4 Turbo shipped 905 days before Mistral Medium 3.5

Which is better: Mistral Medium 3.5 or GPT-4 Turbo?

Mistral Medium 3.5 and GPT-4 Turbo don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-4 Turbo shipped 905 days before Mistral Medium 3.5, so benchmark comparisons should account for the intervening progress.

Context windows are 256k (Mistral Medium 3.5) vs 128k (GPT-4 Turbo). Mistral Medium 3.5 is open weight, while GPT-4 Turbo is proprietary.

Direct benchmark comparisons are unavailable — Mistral Medium 3.5 and GPT-4 Turbo don't publish scores on any of the same benchmarks.

Frequently asked questions

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

GPT-4 Turbo was released by OpenAI on Nov 6 2023.

Mistral Medium 3.5 has a 256k context window; GPT-4 Turbo has 128k.

Mistral Medium 3.5 is an open weight model released by Mistral. GPT-4 Turbo is a proprietary model released by OpenAI.

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