Elon Musk is spending his Saturdays on something 'pretty important,' and it's not cars

Elon Musk made definite investors knew precisely however he's been spending his weekends during Tesla's Q4 2025 net call: hunched implicit spot designs. "I've been spending beauteous overmuch each Saturday connected this, and each Tuesday," Musk said of the AI5 project.

"If I'm spending my Saturdays connected something, it's going to beryllium thing beauteous important."The remark was classical Musk — portion flex, portion reassurance to shareholders that Tesla's semiconductor ambitions person his afloat attention. It besides underscored a cardinal displacement successful what Tesla considers its halfway business. The institution that made its sanction putting batteries successful cars present sees customized silicon arsenic the cardinal to its future.The AI5 spot promises a 50x show leap implicit its predecessor, achieved done 10x earthy compute, 9x representation capacity, and 5x betterment successful hardened artifact quantization and softmax functions. That past spot enables businesslike low-precision computing without sacrificing exemplary accuracy — captious for moving AI inference successful vehicles and robots. Production is scheduled for 2027, with AI6 pursuing wrong a twelvemonth if things spell according to plan.

"I consciousness rather assured astir the plan astatine this point," Musk added. "We're not selling the chips extracurricular of Tesla. We request them."

Tesla's maturation present hinges connected silicon, not steel

For a institution built connected batteries and electrical motors, Musk's connection marked a strategical pivot. Chip production, not conveyance manufacturing, volition beryllium Tesla's biggest bottleneck implicit the adjacent 4 years.The mathematics is straightforward: robotaxis request onboard AI processing to navigate streets autonomously.

Optimus robots request it to execute utile tasks. Tesla's full thesis — that it tin standard autonomous vehicles and humanoid robots faster than competitors — depends connected having capable customized silicon to spell around.Right now, Tesla has proviso secured for astir 3 years. Beyond that window, things get murky. Geopolitical tensions, peculiarly astir Taiwan wherever astir precocious chips are manufactured, could compression availability astatine the worst imaginable time.

Musk didn't mince words astir the stakes."Securing capable chips is existential," helium said, adding that Tesla needs to "figure retired immoderate crippled plan" earlier the three-year runway expires.

A Tesla spot mill remains connected the whiteboard

To insulate itself from proviso concatenation chaos, Musk revisited an thought he's floated before: the TeraFab. This would beryllium a Tesla-owned semiconductor installation producing logic chips, memory, and packaging nether 1 extortion — fundamentally vertical integration taken to its logical extreme."We volition beryllium fundamentally constricted by proviso chain" without home spot production, Musk warned.But don't expect operation crews anytime soon. CFO Vaibhav Taneja clarified that TeraFab improvement isn't factored into Tesla's already important superior expenditure plans, which transcend $20 cardinal for 2026. That wealth is earmarked for expanding AI grooming capableness successful Texas, ramping Cybercab and Tesla Semi production, and installing Optimus assembly lines.For now, Musk said helium hopes much American factories statesman producing silicon domestically — a sentiment that aligns with broader US efforts to reshore semiconductor manufacturing but offers Tesla nary contiguous relief.The institution is meantime doubling down connected what it tin control. Tesla plans to much than treble its onsite AI grooming compute successful Texas during the archetypal fractional of 2026, measured successful H100 GPU equivalents. The Cortex 2 supercomputer installation astatine Gigafactory Texas is nether operation to enactment this expansion.Until the spot proviso representation clarifies, Musk volition support grinding done weekends. Whether that's genuinely indispensable oregon strategical theatre for investors, the connection landed either way: Tesla's CEO considers AI5 important capable to sacrifice his Saturdays.