Optimus
First-generation production lines are being installed at Fremont in anticipation of production in 2026. Tesla dropped 'volume production' language in July and no V3 reveal is confirmed yet.
What it is
Tesla's humanoid robot. Musk has said it will be used in Tesla factories first and sold later.
Why it matters to the stock. Optimus is a large part of Tesla's 2026 capex plan, which is guided at more than $25 billion. Missed production dates are the main risk to the long-term valuation.
News
Musk says Tesla halved AI5 chip memory to 72GB and cut AI6 by a third for Optimus
Elon Musk posted on X on October 1, 2026 that Tesla had cut the RAM on its AI5 chip in half, to 72GB of LPDDR5, and reduced AI6 to 144GB of LPDDR6.
Tesla secures $30B in new credit lines for Cybercab, Optimus and Semi
Tesla announced $30 billion of new credit facilities on September 29, 2026: a $20 billion three-year delayed-draw term loan from Citibank and an $8 billion five-year revolver from Wells Fargo, plus a $2 billion 364-day revolver.
Tesla drops 2026 volume-production targets for Cybercab, Semi and Megapack 3
Tesla's Q2 2026 letter no longer targets 'volume production' of Cybercab, Semi and Megapack 3 in 2026, after saying in January they would reach it that year.
Tesla raises 2026 capex plan to $25B from more than $20B
On the Q1 2026 call Tesla raised its 2026 capital expenditure guidance to $25 billion, up from the more than $20 billion it had guided in January.
Musk: Optimus Fremont production late July or August; V3 reveal mid-year
On the Q1 2026 call Musk said Optimus production would begin at Fremont in late July or August, with initial output 'quite slow'.
Musk ends Model S and X; Fremont lines to build Optimus robots
On the Q4 2025 call Musk said Tesla would end production of the Model S and Model X, with final versions built in Q2 2026.