Rest in peace, Peter Cullen – voice of Optimus Prime, Optimus’ namesake
‘Till all are one
❤️
What Tesla has said about Optimus, what it has shown, and what is only reported. If a number has no source we leave it out.
Counters update every day you visit.
Jan 2025, Tesla said
Roughly 10,000 Optimus built in 2025, several thousand doing useful work
Missed
In January 2026 Musk said none were yet doing useful work in Tesla factories.
Reported
Tesla said lines were being installed in July. Output of several hundred a week in August is reported, not confirmed.
Tesla has not published a full spec sheet for any production Optimus. These are the figures it, or Musk, has stated.

No official photo of the 2021 concept exists: it was presented by a performer in a suit.
| Height | 5 ft 8 in (173 cm) | The Register, 20 Aug 2021 |
|---|---|---|
| Mass | 125 lb (57 kg) | The Register, 20 Aug 2021 |
| Carry | 45 lb (20 kg) | NBC News, 20 Aug 2021 |
| Deadlift | 150 lb (68 kg) | NBC News, 20 Aug 2021 |
| Top speed | 5 mph (8 km/h) | NBC News, 20 Aug 2021 |

| Hands | 11 degrees of freedom, tactile sensing on all fingers | Ars Technica, 13 Dec 2023 |
|---|---|---|
| Neck | 2-DoF actuated | Ars Technica, 13 Dec 2023 |
| Mass change | 10 kg lighter than Gen 1 | Optimus Gen 2 (Tesla, YouTube) |
| Walking speed | 30% faster than Gen 1 | Ars Technica, 13 Dec 2023 |

| Robot mass mentioned by Musk | About 70 kg | Q2 2026 call transcript (Motley Fool) |
|---|---|---|
| Unique parts | About 10,000 | Electrek, 22 Apr 2026 |
| Fremont long-term goal | 1 million robots a year | CNBC, 28 Jan 2026 |
| Second factory | Giga Texas, production around summer 2027 | Electrek, 22 Apr 2026 |
| First builds go to | Internal Optimus Academy, for training data | Tesla Q2 2026 Update (PDF) |
Each one dated by the event or the report that described it.
2021
At AI Day, Tesla showed a concept humanoid, presented on stage by a performer in a suit, and said a prototype was planned for the following year.
2022
At AI Day 2022 a development prototype walked on stage untethered and waved; a sleeker Optimus prototype was shown but did not walk.
2023

Tesla published a lab update showing several units walking, plus object handling and torque-controlled actuators.

A video showed a unit sorting coloured blocks with a neural network trained end to end, then holding yoga poses.

Gen 2 arrived with Tesla-designed actuators, new 11-DoF hands with tactile sensing on every finger, an actuated neck, 10 kg less mass and 30% faster walking.
2024
Optimus units mingled with guests and served drinks at the Cybercab event. Several outlets later reported the interactions were human-assisted.

Tesla posted the next-generation hand catching a tossed ball, shown under teleoperation.
2025
Shareholders approved a CEO award with an operational milestone of one million cumulative bot deliveries.
2026

Tesla said S and X production would wind down so the Fremont space could become an Optimus factory, with a long-term goal of a million robots a year.
On the Q1 call Musk put Fremont production at late July or August, warned output would be slow, and moved the Gen 3 reveal to around mid-year.
Tesla said the S and X lines were decommissioned and first-generation Optimus lines were being installed; first builds go to an internal Optimus Academy.
· Unconfirmed
A paywalled report said output reached several hundred a week in August, with hands still the bottleneck. Tesla has not confirmed the figure.
At X Takeover, Musk said magnet export curbs cost the programme two to three months and that the hands remain the hardest part.
Posts from @Tesla_Optimus, @Tesla and @elonmusk about Optimus, newest first. Posts snapshot from 18 Oct 2026.
Rest in peace, Peter Cullen – voice of Optimus Prime, Optimus’ namesake
‘Till all are one
❤️
One day, Optimus + Grok will provide incredible medical care to all the people of Earth
AI+Optimus will enable universal excellent healthcare that is better than anyone receives today x.com/peterdiamandis…
Walking the Optimus production line in Fremont
Returning to work at Tesla Diner this Thursday
Autobots, assemble!
Apply here
t.co/kVc45Mfk1W
Back to work
See you at Tesla Diner tomorrow
Join the Optimus team to do the most impactful work of your life!
Optimus
Optimus will be the biggest product ever made.
A general-purpose humanoid robot that can do useful work at scale will change the economics of labor & manufacturing.
Goal is to get Optimus to high-volume production as fast as possible.
If you’re great at AI, engineering, or
Optimus+PV will be the first Von Neumann probe, a machine fully capable of replicating itself using raw materials found in space
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