# Musk outlines AI6: about twice AI5's performance, LPDDR6 memory and large on-chip SRAM; adds an AI6.5 at TSMC Arizona

Canonical page: https://technooptimist.io/stories/musk-outlines-ai6-about-twice-ai5-s-performance-lpddr6-memory-and-large-f4e44d21
Date: 16 Apr 2026
About: [Tesla](https://technooptimist.io/companies/tesla.md) · [AI5 / AI6 chips and Dojo 3](https://technooptimist.io/computing/ai5-chip.md)
Original source: https://notateslaapp.com/news/3986/elon-musk-shares-specs-for-teslas-ai6-chip-teases-ai65

With AI5's design finished, Musk said AI6 brings "a true doubling of performance over AI5" and fixes shortcuts the team took to move fast on AI5. About half of AI6's accelerator area is on-chip SRAM, which he says gives effective bandwidth an order of magnitude above DRAM. A mid-cycle AI6.5 will be made by TSMC in Arizona.

## Key facts

- AI6 moves to LPDDR6 memory, from the LPDDR5/5X expected on AI5.
- AI6 is built by Samsung on 2 nm in Taylor, Texas; AI6.5 by TSMC on 2 nm in Arizona.
- Tesla says it iterates on a nine-month chip design cycle.
- Musk says one AI5 gives about five times the raw compute of today's dual-chip AI4.

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