Mistral Medium 3.5vsGPT-4
Mistral Medium 3.5 | GPT-4 | |
|---|---|---|
| Specifications | ||
Parameters | 128B | — |
Context window | 256k | 8k |
| Benchmarks | ||
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 77.6% | — |
Function synthesis HumanEval164 small Python problems: the AI is given a function's description and has to write the working function. This was the coding benchmark of the GPT-3.5 and GPT-4 era, before the field moved to fixing real bugs in real repositories. Higher is better. | — | 67% |
General knowledge MMLUA 57-subject multiple-choice exam — history, law, medicine, maths — that was the standard measure of how much a model knows from 2020 until roughly 2024, when frontier scores crowded into the high 80s and labs moved on to harder tests. The scores here were published years apart under different testing setups, so read them as a historical record rather than a like-for-like ranking. Higher is better. | — | 86.4% |
Grade-school math GSM8KGrade-school maths word problems that take a few steps of arithmetic to work through. It separated the models of 2022 and 2023 sharply, then saturated. One caveat on the historical numbers: OpenAI included part of the GSM8K training set in GPT-4's pre-training mix, so GPT-4's score is not a clean few-shot result. Higher is better. | — | 92% |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | 1267 | — |
| Overview | ||
| Company | Mistral | OpenAI |
| Release date | Apr 29 2026 | Mar 14 2023 |
| Access | Open Weight | Proprietary |
Which is better: Mistral Medium 3.5 or GPT-4?
Mistral Medium 3.5 and GPT-4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-4 shipped 1142 days before Mistral Medium 3.5, so benchmark comparisons should account for the intervening progress.
Context windows are 256k (Mistral Medium 3.5) vs 8k (GPT-4). Mistral Medium 3.5 is open weight, while GPT-4 is proprietary.
Direct benchmark comparisons are unavailable — Mistral Medium 3.5 and GPT-4 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 was released by OpenAI on Mar 14 2023.
Mistral Medium 3.5 has a 256k context window; GPT-4 has 8k.
Mistral Medium 3.5 is an open weight model released by Mistral. GPT-4 is a proprietary model released by OpenAI.