AI Model Release Tracker

GPT-4.5vsGrok‑1.5

GPT-4.5
Grok‑1.5
Overview
CompanyOpenAISpaceXAI
Release dateFeb 27 2025Mar 29 2024
AccessProprietaryProprietary

Other comparisons

GPT-4.5vsClaude Fable 5.1Grok‑1.5vsClaude Fable 5.1GPT-4.5vsGemini 3.8 FlashGrok‑1.5vsGemini 3.8 FlashGPT-4.5vsMuse Spark 1.3Grok‑1.5vsMuse Spark 1.3GPT-4.5vsDeepSeek-V4.1-FlashGrok‑1.5vsDeepSeek-V4.1-FlashGPT-4.5vsMistral Medium 3.5Grok‑1.5vsMistral Medium 3.5GPT-4.5vsKimi K3Grok‑1.5vsKimi K3

Frequently asked questions

GPT-4.5 and Grok‑1.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑1.5 shipped 335 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‑1.5 don't publish scores on any of the same benchmarks.