Why Tesla Must Retrofit Four Million Cars

Why Tesla Must Retrofit Four Million Cars

From Elon Musk Podcast by Stage Zero

April 25, 2026 · 16 min

About this episode

The episode discusses Tesla's need to retrofit millions of cars due to advancements in self-driving hardware and competition from NVIDIA.

The technological evolution and competitive landscape of Tesla's self-driving hardware . While Hardware 3 has been officially deemed incapable of supporting unsupervised autonomy due to memory constraints, Tesla is introducing a series of iterative upgrades, including AI4.1 (AI4 Plus) and AI4.5 , to bridge the gap until the AI5 chip arrives in 2027. These updates focus on doubling RAM capacity and increasing memory bandwidth to manage the massive data flow required for vision-based neural networks. Despite these internal advancements, Tesla faces stiff competition from NVIDIA’s Thor processor , which currently offers superior raw compute power and modern server-grade architecture. Consequently, Tesla is navigating a complex transition that involves potentially retrofitting millions of older vehicles while shifting its most advanced future silicon toward robotics and data centers . https://www.skool.com/ai-and-automation-3750/about

Topics covered

  • Tesla
  • self-driving technology
  • hardware upgrades
  • AI development
  • automotive industry
  • competition

Keywords

  • Tesla
  • self-driving
  • AI upgrades
  • NVIDIA
  • retrofit
  • Hardware 3
  • AI4.1
  • AI4.5
  • Thor processor

Mentioned in this episode

Organizations: Tesla, NVIDIA

Products: Hardware 3, AI4.1, AI4.5, AI5, Thor processor

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