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

Mistral NeMo vs o4-mini

Mistral
Mistral NeMo
OpenAI
o4-mini
Overview
CompanyMistralOpenAI
Release dateJul 18 2024Apr 16 2025
AccessOpen WeightProprietary
Specifications
Parameters
12B
Context window
128k
Benchmarks
Nonsense detection
BullshitBench v2
8%
Timeline
Release gapMistral NeMo shipped 272 days before o4-mini

Which is better: Mistral NeMo or o4-mini?

Mistral NeMo and o4-mini don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral NeMo shipped 272 days before o4-mini, so benchmark comparisons should account for the intervening progress.

Mistral NeMo is open weight, while o4-mini is proprietary.

Direct benchmark comparisons are unavailable — Mistral NeMo and o4-mini don't publish scores on any of the same benchmarks.

Frequently asked questions

Mistral NeMo was released by Mistral on Jul 18 2024.

o4-mini was released by OpenAI on Apr 16 2025.

Mistral NeMo is an open weight model released by Mistral. o4-mini is a proprietary model released by OpenAI.

Other comparisons