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

AI Model Release Tracker
SpaceXAI

Grok 4 Heavy

Grok 4 Heavy is an AI model released by SpaceXAI on Jul 9 2025, the same day as Grok 4.

Compare Grok 4 Heavy with

Grok 4 Heavy vs Grok 4.5Grok 4 Heavy vs GPT-5.6 SolGrok 4 Heavy vs Claude Sonnet 5Grok 4 Heavy vs Gemini OmniGrok 4 Heavy vs Muse Spark 1.1Grok 4 Heavy vs DeepSeek-V4-ProGrok 4 Heavy vs Mistral Medium 3.5Grok 4 Heavy vs Kimi K2.7 CodeGrok 4 Heavy vs Composer 2.5Grok 4 Heavy vs GLM-5.2