Musk Adjusts Tesla AI5 Memory Twice in a Day, Landing at 96GB
10/03/2026 — 10/03, 15:12·1 sources·1 reports
Story overview
Tesla CEO Elon Musk changed the memory configuration of the company's next-generation AI5 chip twice in less than a day, according to a cnBeta report published on October 3.
On October 1, Musk said Tesla would halve the LPDDR5 memory on AI5, cutting it from a planned 144GB to 72GB. He gave two reasons: securing enough supply to support volume production of the Optimus humanoid robot, and reducing cost. In the same move, the LPDDR6 memory on AI6 was reduced by roughly one third, to 144GB.
A day later, on October 2, Musk revised the AI5 figure upward, writing in a reply on a social platform that Tesla had decided to raise the chip's memory to 96GB. The reason he gave was that otherwise the company would be the only vendor using the lowest-density version of LP5 memory.
The report does not describe any configuration changes beyond those two adjustments, and it does not say when AI5 or AI6 will enter production. As of the report, AI5 sits at 96GB of LPDDR5 memory — above the 72GB figure announced the previous day, but below the originally planned 144GB — while AI6 carries 144GB of LPDDR6 memory.
AI-generated from 1 reports · updated 1 hour ago
Latest turnElon Musk revised Tesla's next-gen AI5 chip memory twice in under a day: first halving the LPDDR5 from 144GB to 72GB to secure supply and cut costs for Optimus humanoid robot production, then raising it back to 96GB to avoid being the only vendor on the lowest-density LP5 version. Tesla also cut AI6's LPDDR6 memory by roughly a third to 144GB.
Reports on this story headlines open the original
Elon Musk revised Tesla's next-gen AI5 chip memory twice in under a day: first halving the LPDDR5 from 144GB to 72GB to secure supply and cut costs for Optimus humanoid robot production, then raising it back to 96GB to avoid being the only vendor on the lowest-density LP5 version. Tesla also cut AI6's LPDDR6 memory by roughly a third to 144GB.
cnBetaAI score 65
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