AI Model Release Tracker

GPT-4.5vsGrok 3

GPT-4.5
Grok 3
Overview
CompanyOpenAISpaceXAI
Release dateFeb 27 2025Feb 17 2025
AccessProprietaryProprietary

Other comparisons

GPT-4.5vsClaude Opus 5.5Grok 3vsClaude Opus 5.5GPT-4.5vsGemini 3.8 FlashGrok 3vsGemini 3.8 FlashGPT-4.5vsMuse Spark 1.3Grok 3vsMuse Spark 1.3GPT-4.5vsDeepSeek-V4.1-FlashGrok 3vsDeepSeek-V4.1-FlashGPT-4.5vsMistral Medium 3.5Grok 3vsMistral Medium 3.5GPT-4.5vsKimi K3Grok 3vsKimi K3

Frequently asked questions

GPT-4.5 and Grok 3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok 3 shipped 10 days before GPT-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-4.5 and Grok 3 don't publish scores on any of the same benchmarks.