Tesla tapes out AI5

Tesla has finished the design of a new in-house artificial-intelligence chip called AI5 and sent it to factories to be turned into physical silicon. (electrek.co) In chipmaking, “tape-out” means the blueprint is locked and handed to a foundry for fabrication; it does not mean mass production has started. Elon Musk posted the milestone on April 15, 2026, and said AI6 and Dojo3 are already in development. (electrek.co) Tesla says it builds custom inference chips — processors tuned to run trained neural networks efficiently — as part of its autonomy stack for vehicles and robots. On Tesla’s AI page, the company says those chips are meant to support Full Self-Driving, humanoid robotics and other systems that need fast decision-making from camera data. (tesla.com) That matters because Tesla is no longer pitching itself only as a carmaker. In its 2025 fourth-quarter update, the company said it was shifting from a “hardware-centric business” toward a “physical AI company” while expanding robot, vehicle and AI-training infrastructure in 2026. (assets-ir.tesla.com) Tesla’s public materials also show where AI5 fits in operationally. The company says new vehicles use HW4 for Full Self-Driving (Supervised), while its broader AI and robotics group is building software and silicon for cars, Optimus and training systems. (tesla.com, tesla.com) Reports tied to Musk’s post say AI5 is aimed first at Optimus robots and Tesla’s internal supercomputer clusters rather than an immediate rollout across the vehicle lineup. Electrek reported April 15 that AI5 is still more than a year from volume production and would not reach a meaningful number of vehicles in 2026. (electrek.co, techpowerup.com) Several outlets, citing Musk’s comments and earlier reporting, said AI5 carries 192 gigabytes of memory and is being compared with Nvidia’s Hopper generation of AI hardware. Those specifications have circulated widely in trade and Tesla-focused coverage, but Tesla has not published a full AI5 datasheet on its website. (techpowerup.com, tweaktown.com) The manufacturing story is also part of the reaction. Coverage this week said Tesla plans to have AI5 produced at Samsung’s Taylor, Texas, site and Taiwan Semiconductor Manufacturing Co.’s Arizona operation, giving the company two U.S.-based production paths for the same chip family. (digitimes.com, techpowerup.com) Investors treated the announcement as a live catalyst ahead of earnings. Google Finance shows Tesla closed at $400.62 on April 17, 2026, and CNBC reported the stock had added nearly 8% after Musk touted the chip milestone. (google.com, cnbc.com) The next test is not the post but the silicon. After tape-out, Tesla still has to get working chips back from the foundry, validate them, and prove they can ship at scale in the robots and computing systems it says will define the next phase of the company. (electrek.co, assets-ir.tesla.com)