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

Devstral Small vs GPT-4.1

Mistral
Devstral Small
OpenAI
GPT-4.1
Overview
CompanyMistralOpenAI
Release dateMay 21 2025Apr 14 2025
AccessOpen WeightProprietary
Specifications
Parameters
24B
Benchmarks
Nonsense detection
BullshitBench v2
14%
Timeline
Release gapGPT-4.1 shipped 37 days before Devstral Small

Which is better: Devstral Small or GPT-4.1?

Devstral Small and GPT-4.1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-4.1 shipped 37 days before Devstral Small, so benchmark comparisons should account for the intervening progress.

Devstral Small is open weight, while GPT-4.1 is proprietary.

Direct benchmark comparisons are unavailable — Devstral Small and GPT-4.1 don't publish scores on any of the same benchmarks.

Frequently asked questions

Devstral Small was released by Mistral on May 21 2025.

GPT-4.1 was released by OpenAI on Apr 14 2025.

Devstral Small is an open weight model released by Mistral. GPT-4.1 is a proprietary model released by OpenAI.

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