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

Mistral NeMo vs GPT-5.1

Mistral
Mistral NeMo
OpenAI
GPT-5.1
Overview
CompanyMistralOpenAI
Release dateJul 18 2024Nov 12 2025
AccessOpen WeightProprietary
Specifications
Parameters
12B
Context window
128k
Benchmarks
Nonsense detection
BullshitBench v2
25%
Coding
SWE-Bench Verified
76.3%
Science
GPQA Diamond
88.1%
Multimodal
MMMU
76%
Timeline
Release gapMistral NeMo shipped 482 days before GPT-5.1

Which is better: Mistral NeMo or GPT-5.1?

Mistral NeMo and GPT-5.1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral NeMo shipped 482 days before GPT-5.1, so benchmark comparisons should account for the intervening progress.

Mistral NeMo is open weight, while GPT-5.1 is proprietary.

Direct benchmark comparisons are unavailable — Mistral NeMo and GPT-5.1 don't publish scores on any of the same benchmarks.

Frequently asked questions

Mistral NeMo was released by Mistral on Jul 18 2024.

GPT-5.1 was released by OpenAI on Nov 12 2025.

Mistral NeMo is an open weight model released by Mistral. GPT-5.1 is a proprietary model released by OpenAI.

Other comparisons