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

GPT-4.1 mini vs Grok 4.5

OpenAI
GPT-4.1 mini
SpaceXAI
Grok 4.5
Overview
CompanyOpenAISpaceXAI
Release dateMay 14 2025Jul 8 2026
AccessProprietaryProprietary
Benchmarks
Agentic coding
SWE-Bench Pro
64.7%
Multilingual coding
SWE-Bench Multilingual
78%
Agentic coding
DeepSWE 1.0
62%
Agentic terminal coding
Terminal-Bench 2.1
83.3%
Timeline
Release gapGPT-4.1 mini shipped 420 days before Grok 4.5

Which is better: GPT-4.1 mini or Grok 4.5?

GPT-4.1 mini and Grok 4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-4.1 mini shipped 420 days before Grok 4.5, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — GPT-4.1 mini and Grok 4.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

GPT-4.1 mini was released by OpenAI on May 14 2025.

Grok 4.5 was released by SpaceXAI on Jul 8 2026.

Other comparisons