For years, Elon Musk has talked about Dojo — the AI supercomputer that would be the cornerstone of Tesla’s AI ambitions. It’s necessary sufficient to Musk that in July 2024, he stated the corporate’s AI crew would “double down” on Dojo within the lead as much as Tesla’s robotaxi reveal, which occurred in October.
However what precisely is Dojo? And why is it so important to Tesla’s long-term technique?
Briefly: Dojo is Tesla’s custom-built supercomputer that’s designed to coach its “Full Self-Driving” neural networks. Beefing up Dojo goes hand-in-hand with Tesla’s aim to succeed in full self-driving and produce a robotaxi to market. FSD, which is on lots of of hundreds of Tesla automobiles at present, can carry out some automated driving duties however nonetheless requires a human to be attentive behind the wheel.
Tesla’s Cybercab reveal has come and gone, and now the corporate is gearing as much as launch an autonomous ride-hail service utilizing its personal fleet of automobiles in Austin this June. Tesla additionally stated throughout its 2024 fourth-quarter and full-year earnings name on the finish of January that it plans to launch unsupervised FSD for U.S. prospects in 2025.
Musk’s earlier rhetoric has been that Dojo can be the important thing to reaching Tesla’s aim of full self-driving. Now that Tesla seems near nearing that aim, Musk has been mum on Dojo.
As an alternative, ever since August 2024, discuss has been round Cortex, Tesla’s “big new AI coaching supercluster being constructed at Tesla HQ in Austin to resolve real-world AI.” Musk has also said it is going to have “huge storage for video coaching of FSD & Optimus.”
In Tesla’s Q4 shareholder deck, the corporate shared updates on Cortex, however nothing on Dojo.
Tesla has positioned itself to spend huge on AI and Dojo — and now Cortex — to succeed in its aim of autonomy for each automobiles and humanoid robots. And Tesla’s future success actually hinges on its potential to nail this down, given the elevated competitors within the EV market. So it’s value taking a better have a look at Dojo, Cortex, and the place all of it stands at present.
Tesla’s Dojo backstory
Musk doesn’t need Tesla to be simply an automaker, or perhaps a purveyor of photo voltaic panels and power storage methods. As an alternative, he desires Tesla to be an AI firm, one which has cracked the code to self-driving automobiles by mimicking human notion.
Most different firms constructing autonomous car know-how depend on a mixture of sensors to understand the world — like lidar, radar and cameras — in addition to high-definition maps to localize the car. Tesla believes it will probably obtain absolutely autonomous driving by counting on cameras alone to seize visible information after which use superior neural networks to course of that information and make fast selections about how the automotive ought to behave.
As Tesla’s former head of AI, Andrej Karpathy, stated on the automaker’s first AI Day in 2021, the corporate is principally making an attempt to construct “an artificial animal from the bottom up.” (Musk had been teasing Dojo since 2019, however Tesla formally introduced it at AI Day.)
Firms like Alphabet’s Waymo have commercialized Stage 4 autonomous automobiles — which the SAE defines as a system that may drive itself with out the necessity for human intervention below sure circumstances — by way of a extra conventional sensor and machine studying strategy. Tesla has nonetheless but to provide an autonomous system that doesn’t require a human behind the wheel.
About 1.8 million individuals have paid the hefty subscription worth for Tesla’s FSD, which at the moment prices $8,000 and has been priced as excessive as $15,000. The pitch is that Dojo-trained AI software program will finally be pushed out to Tesla prospects by way of over-the-air updates. The dimensions of FSD additionally means Tesla has been in a position to rake in thousands and thousands of miles value of video footage that it makes use of to coach FSD. The thought there’s that the extra information Tesla can accumulate, the nearer the automaker can get to really reaching full self-driving.
Nevertheless, some business specialists say there could be a restrict to the brute power strategy of throwing extra information at a mannequin and anticipating it to get smarter.
“To begin with, there’s an financial constraint, and shortly it is going to simply get too costly to do this,” Anand Raghunathan, Purdue College’s Silicon Valley professor {of electrical} and pc engineering, advised TechCrunch. Additional, he stated, “Some individuals declare that we would truly run out of significant information to coach the fashions on. Extra information doesn’t essentially imply extra data, so it depends upon whether or not that information has data that’s helpful to create a greater mannequin, and if the coaching course of is ready to truly distill that data into a greater mannequin.”
Raghunathan stated regardless of these doubts, the development of extra information seems to be right here for the short-term at the least. And extra information means extra compute energy wanted to retailer and course of all of it to coach Tesla’s AI fashions. That’s the place Dojo, the supercomputer, is available in.
What’s a supercomputer?
Dojo is Tesla’s supercomputer system that’s designed to perform as a coaching floor for AI, particularly FSD. The title is a nod to the area the place martial arts are practiced.
A supercomputer is made up of hundreds of smaller computer systems known as nodes. Every of these nodes has its personal CPU (central processing unit) and GPU (graphics processing unit). The previous handles general administration of the node, and the latter does the advanced stuff, like splitting duties into a number of components and dealing on them concurrently. GPUs are important for machine studying operations like people who energy FSD coaching in simulation. In addition they energy giant language fashions, which is why the rise of generative AI has made Nvidia probably the most precious firm on the planet.
Even Tesla buys Nvidia GPUs to coach its AI (extra on that later).
Why does Tesla want a supercomputer?
Tesla’s vision-only strategy is the primary cause Tesla wants a supercomputer. The neural networks behind FSD are skilled on huge quantities of driving information to acknowledge and classify objects across the car after which make driving selections. That signifies that when FSD is engaged, the neural nets have to gather and course of visible information constantly at speeds that match the depth and velocity recognition capabilities of a human.
In different phrases, Tesla means to create a digital duplicate of the human visible cortex and mind perform.
To get there, Tesla must retailer and course of all of the video information collected from its automobiles world wide and run thousands and thousands of simulations to coach its mannequin on the information.
Tesla seems to depend on Nvidia to energy its present Dojo coaching pc, nevertheless it doesn’t wish to have all its eggs in a single basket — not least as a result of Nvidia chips are costly. Tesla additionally hopes to make one thing higher that will increase bandwidth and reduces latencies. That’s why the automaker’s AI division determined to provide you with its personal {custom} {hardware} program that goals to coach AI fashions extra effectively than conventional methods.
At that program’s core is Tesla’s proprietary D1 chips, which the corporate says are optimized for AI workloads.
Inform me extra about these chips
Tesla is of the same opinion to Apple in that it believes {hardware} and software program must be designed to work collectively. That’s why Tesla is working to maneuver away from the usual GPU {hardware} and design its personal chips to energy Dojo.
Tesla unveiled its D1 chip, a silicon sq. the dimensions of a palm, on AI Day in 2021. The D1 chip entered into manufacturing as of at the least Might this 12 months. The Taiwan Semiconductor Manufacturing Firm (TSMC) is manufacturing the chips utilizing 7 nanometer semiconductor nodes. The D1 has 50 billion transistors and a big die dimension of 645 millimeters squared, in response to Tesla. That is all to say that the D1 guarantees to be extraordinarily highly effective and environment friendly and to deal with advanced duties rapidly.
“We will do compute and information transfers concurrently, and our {custom} ISA, which is the instruction set structure, is absolutely optimized for machine studying workloads,” stated Ganesh Venkataramanan, former senior director of Autopilot {hardware}, at Tesla’s 2021 AI Day. “This can be a pure machine studying.”
The D1 remains to be not as highly effective as Nvidia’s A100 chip, although, which can also be manufactured by TSMC utilizing a 7 nanometer course of. The A100 comprises 54 billion transistors and has a die dimension of 826 sq. millimeters, so it performs barely higher than Tesla’s D1.
To get the next bandwidth and better compute energy, Tesla’s AI crew fused 25 D1 chips collectively into one tile to perform as a unified pc system. Every tile has a compute energy of 9 petaflops and 36 terabytes per second of bandwidth, and comprises all of the {hardware} crucial for energy, cooling and information switch. You may consider the tile as a self-sufficient pc made up of 25 smaller computer systems. Six of these tiles make up one rack, and two racks make up a cupboard. Ten cupboards make up an ExaPOD. At AI Day 2022, Tesla stated Dojo would scale by deploying a number of ExaPODs. All of this collectively makes up the supercomputer.
Tesla can also be engaged on a next-gen D2 chip that goals to resolve data stream bottlenecks. As an alternative of connecting the person chips, the D2 would put your complete Dojo tile onto a single wafer of silicon.
Tesla hasn’t confirmed what number of D1 chips it has ordered or expects to obtain. The corporate additionally hasn’t offered a timeline for a way lengthy it is going to take to get Dojo supercomputers working on D1 chips.
In response to a June post on X that stated: “Elon is constructing a large GPU cooler in Texas,” Musk replied that Tesla was aiming for “half Tesla AI {hardware}, half Nvidia/different” over the subsequent 18 months or so. The “different” might be AMD chips, per Musk’s comment in January.
What does Dojo imply for Tesla?
Taking management of its personal chip manufacturing signifies that Tesla may at some point be capable of rapidly add giant quantities of compute energy to AI coaching packages at a low value, notably as Tesla and TSMC scale up chip manufacturing.
It additionally signifies that Tesla might not should depend on Nvidia’s chips sooner or later, that are more and more costly and exhausting to safe.
Throughout Tesla’s second-quarter earnings name, Musk stated that demand for Nvidia {hardware} is “so excessive that it’s usually tough to get the GPUs.” He stated he was “fairly involved about truly with the ability to get regular GPUs once we need them, and I feel this due to this fact requires that we put much more effort on Dojo in an effort to make sure that we’ve received the coaching functionality that we’d like.”
That stated, Tesla remains to be shopping for Nvidia chips at present to coach its AI. In June, Musk posted on X:
Of the roughly $10B in AI-related expenditures I stated Tesla would make this 12 months, about half is inner, primarily the Tesla-designed AI inference pc and sensors current in all of our automobiles, plus Dojo. For constructing the AI coaching superclusters, Nvidia {hardware} is about 2/3 of the price. My present finest guess for Nvidia purchases by Tesla are $3B to $4B this 12 months.
“Inference compute” refers back to the AI computations carried out by Tesla automobiles in actual time and is separate from the coaching compute that Dojo is chargeable for.
Dojo is a dangerous guess, one which Musk has hedged a number of instances by saying that Tesla may not succeed.
In the long term, Tesla may theoretically create a brand new enterprise mannequin primarily based on its AI division. Musk has stated that the primary model of Dojo might be tailor-made for Tesla pc imaginative and prescient labeling and coaching, which is nice for FSD and for coaching Optimus, Tesla’s humanoid robotic. However it wouldn’t be helpful for a lot else.
Musk has said that future variations of Dojo might be extra tailor-made to general-purpose AI coaching. One potential downside with that’s virtually all AI software program out there was written to work with GPUs. Utilizing Dojo to coach general-purpose AI fashions would require rewriting the software program.
That’s, except Tesla rents out its compute, much like how AWS and Azure hire out cloud computing capabilities. Musk additionally famous throughout Q2 earnings that he sees “a path to being aggressive with Nvidia with Dojo.”
A September 2023 report from Morgan Stanley predicted that Dojo may add $500 billion to Tesla’s market worth by unlocking new income streams within the type of robotaxis and software program companies.
Briefly, Dojo’s chips are an insurance coverage coverage for the automaker, however one that might pay dividends.
How far alongside is Dojo?
Reuters reported final 12 months that Tesla started manufacturing on Dojo in July 2023, however a June 2023 post from Musk urged that Dojo had been “on-line and working helpful duties for a couple of months.”
Across the similar time, Tesla stated it anticipated Dojo to be one of many high 5 strongest supercomputers by February 2024 — a feat that has but to be publicly disclosed, leaving us uncertain that it has occurred.
The corporate additionally stated it expects Dojo’s whole compute to succeed in 100 exaflops in October 2024. (One exaflops is the same as 1 quintillion pc operations per second. To succeed in 100 exaflops, and assuming that one D1 can obtain 362 teraflops, Tesla would wish greater than 276,000 D1s, or round 320,500 Nvidia A100 GPUs.)
Tesla additionally pledged in January 2024 to spend $500 million to construct a Dojo supercomputer at its gigafactory in Buffalo, New York.
In Might 2024, Musk noted that the rear portion of Tesla’s Austin gigafactory might be reserved for a “tremendous dense, water-cooled supercomputer cluster.” Now we all know that it’s truly Cortex, not Dojo, that’s taking on that area in Austin.
Simply after Tesla’s second-quarter earnings name, Musk posted on X that the automaker’s AI crew is utilizing Tesla HW4 AI pc (renamed AI4), which is the {hardware} that lives on Tesla automobiles, within the coaching loop with Nvidia GPUs. He famous that the breakdown is roughly 90,000 Nvidia H100s plus 40,000 AI4 computer systems.
“And Dojo 1 can have roughly 8k H100-equivalent of coaching on-line by finish of 12 months,” he continued. “Not huge, however not trivial both.”
Tesla hasn’t offered updates as as to whether it has gotten these chips on-line and working Dojo. Throughout the firm’s fourth-quarter 2024 earnings name, nobody talked about Dojo. Nevertheless, Tesla stated it accomplished the deployment of Cortex in This fall, and that it was Cortex that helped allow V13 of supervised FSD.
This story initially revealed August 3, 2024, and we are going to replace it as new data develops.