
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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