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Grok 4.5 release and capabilities

3 items2 sourcesupdated 28d agotrend 0

xAI released Grok 4.5, a new AI model that was benchmarked alongside GPT-5.5 and Claude on the same application-building tasks. The model demonstrated capability to generate complex interactive applications, including a procedurally generated 3D harbor town simulation spanning 6,000 years of evolution.

  • Grok 4.5 released by xAI on 2026-07-08
  • Benchmarked directly against GPT-5.5 and Claude on identical app-building tasks
  • Successfully generated procedurally generated 3D simulation with user controls
  • Added to Harbor Town Playable gallery for public comparison
  • Capable of complex interactive application generation with historical simulation scope