GM Expects AI Models to Halve Battery Cell Development Time

General Motors expects to take a new battery cell through development in “roughly half the time”, using AI models and a new $900 million mini factory in Warren, Michigan, according to a report by The Verge published on 12 October 2026. The Verge’s John Voelcker toured the Battery Cell Development Center in early September and interviewed the GM engineers running it.

Radu Theyyunni, GM’s director of virtual engineering for global propulsion, told The Verge that GM’s large language models, informed by 10 years of prior battery data, now predict the results of dozens of minor chemistry changes and process variations far faster than physical prototyping and testing could.

What the Models Do

According to The Verge, the simulation lets GM model “what happens if we add more silicon, what happens if you lower the cobalt content,” in Theyyunni’s words. GM battery czar Kurt Kelty added: “We can simulate what that would be in a couple of days.” The Verge reports that the same loop could take months if done by a cell maker overseas.

Theyyunni said the results have proven extremely accurate when transferred into real-world prototyping, The Verge reports. He also said that modelling of the molecule blending in slurry mixers let GM cut mixing time by half against recommended industry practice, with no impact on quality or cell performance.

GM declined to quantify timelines or put a number on the time saved, according to the report. Kelty had earlier suggested the approach could let GM shave up to a year off development of promising new cell chemistries.

The $900 Million Mini Factory

BCDC head Mo Gallegos puts the total cost of the Battery Cell Development Center at $900 million, The Verge reports. The two buildings total half a million square feet, and at maximum production the center might produce 4 to 5 gigawatt-hours of cells, though The Verge says the goal is quality, not quantity.

The center is slated to produce its first test cells, lithium manganese-rich (LMR) prismatic cells, in the fourth quarter of 2026. According to The Verge, those cells won’t go into volume production at the Ultium plant in Spring Hill, Tennessee, until 2028. Sodium-ion prismatic cells for energy storage, developed with startup Peak Energy, are to follow.

In June, Kelty described the center to The Verge as “the critical bridge from R&D lab to production”. GM declined to say how many employees work there.

Where It Sits in GM’s Battery Pipeline

The Verge sets out four phases: a new chemistry at GM’s Kettering R&D lab, early large-format prototypes at the Wallace Battery Cell Innovation Center opened in 2023, process development at the new center, and volume production at plants such as Ultium Cells, GM’s joint venture with LG Energy Solution.

The scale steps up at each phase. Per the report, Kettering might produce 1 litre of electrode slurry, Wallace takes that to 40 litres, and the new center will make 1,500 to 2,000 litres at a time in a single process.

The Verge reports that the battery pack makes up 30 to 40 percent of the total cost of most GM EVs, and that the center’s aim is new cells that cut the cost of those vehicles.

The Compute Behind It

Theyyunni told The Verge that GM’s compute power is second within the US only to the country’s national laboratories, and that the atomic and process modelling for its LMR cells required three times the compute capacity of modelling combustion for a gasoline engine.

Kelty said the methods carry across chemistries: “atomistic modeling is chemistry agnostic,” and to go from one chemistry to sodium-ion cells, “we just change the atoms in the model.”

Over the long haul, Kelty said, “We want to get rid of testing”. The report says the ultimate goal he suggested is a system that could “synthesize a new cell chemistry” on its own, but that GM is not there yet.

The Structural Read

As we read it, the models sit before the factory, not instead of it: The Verge describes them predicting chemistry and process changes before the $900 million center builds and tests real cells.

As we read it, the center fills the third of GM’s four phases, working out how to build a cell, which The Verge says was historically done by battery manufacturers, virtually always overseas.

As we read it, the claims are still expectations: GM declined to quantify the time saved, first LMR test cells are due in the fourth quarter of 2026, and volume production is set for 2028.

Three Implications

CELL MAKERS The Verge reports that the process-development phase the new center handles was historically done by battery manufacturers, virtually always overseas.

GM’S EV COSTS According to The Verge, the battery pack makes up 30 to 40 percent of the total cost of most GM EVs, and the center’s aim is cheaper cells.

COMPUTE DEMAND Theyyunni told The Verge that the LMR modelling required three times the compute capacity of modelling combustion for a gasoline engine.

The Business Engineer Lens

This story maps onto the Business Engineer framework The Four Intelligence Moats.

The framework puts it this way: “If you understand how each data pipeline becomes a moat — and how each moat decays — you understand the strategic structure of the entire AI stack.”

As we read it, GM’s pipeline is a decade of its own battery data turned into models that test chemistry changes before a cell is built.

What Is Not Established

The time savings are GM’s own expectations, quoted by The Verge; GM declined to quantify timelines or the time saved, and we have seen no independent measure of the models’ accuracy. The report does not name the models GM uses or say how they were built. The $900 million figure is the BCDC head’s, as quoted; we did not find a GM release on the center in this pass.

The Bottom Line

GM says AI models informed by a decade of its own battery data now simulate chemistry changes in a couple of days, and it expects its new $900 million center to take a cell through development in roughly half the time. First LMR test cells are due in the fourth quarter of 2026, with volume production in 2028.