Ericsson and Nokia at odds on AI-RAN silicon

Ericsson CEO Per Narvinger used the Q3 2026 earnings call on 15 October to defend custom ASICs for AI-RAN, according to RCR Wireless on 16 October. Asked by Deutsche Bank's Robert Sanders whether GPUs in the baseband had been ruled out, Narvinger said Ericsson is not philosophically against anything and will pursue what makes business sense. Its software and hardware are disaggregated, so GPUs remain an option, although they would require new hardware at the site. The function Ericsson is selling today, AI-native link adaptation, runs on basebands already deployed. Ericsson reports a 10% spectral efficiency gain and says the function runs on more than 60,000 base stations at 3 operators, including Optus, with AT&T, Bell Canada and T-Mobile reportedly testing it. All figures here come from RCR's account of the call. 

Narvinger put a 10% spectrum efficiency gain at about $800 million, against the $8 billion SpaceX was reported to have paid for spectrum the week before. RCR does not say what base the $800 million is calculated on, so I treat it as an illustration, not a measurement. The comparison does clarify the nature of the benefit. Spectral efficiency is capacity gained on spectrum already licensed, which is cost avoidance, the category I separated from new revenue in AI monetization for operators: separating revenue from cost avoidance. On a single cell the value arrives when a capacity upgrade is deferred, and Vish Nandlall's RCR Analyst Angle of 13 October put that at about $18,000 in present value for a cell at 91% load with a $200,000 upgrade deferred by about 1 year. An average gain across 60,000 sites says less than how many of those sites sit near an upgrade trigger.

Light Reading reported on 12 October that Nokia is building its AI-RAN on Nvidia GPUs and has stopped new custom silicon, with operators testing this quarter and commercial availability in early 2027. Ericsson's answer is that value can be delivered now on silicon operators already own. Both positions have an economic logic, and neither has been tested against the other in a published cost comparison. This is the gap between field-validated and commercially validated that I described in Is AI-RAN the future of telco?. A footprint of 60,000 sites is a field result for a software function on existing ASICs. It does not show that a GPU baseband earns its premium. Where accelerators are needed, the position in Non-RT RIC, AI-RAN, and the AI Grid applies: deployment starts where power, cooling and fibre are already in place, which points to the central office before the cell site.

Component costs add to the comparison. RCR reports that Ericsson beat Q3 forecasts on 7% organic sales growth, helped by customers buying ahead of expected AI-related price rises, and warned that AI-driven component costs will pressure margins through 2027. 

As you know if you follow this blog, I am skeptical of the cost-benefit of putting GPUs in a base station. The costs are high and growing, both form a capex and an energy perspective, while the benefits are entirely speculative. Would Nokia have taken the same architectural decision without NVIDIA's 1B$ investment? Unlikely. Between data centers, AI-RAN, sovereign AI, and AI factories, NVIDIA plays on a lot of different fields in telecom. They can afford for some of these explorations to backfire. Can Nokia afford to fail the next generation of radio architecture by betting it all on GPU?