SambaNova has raised fresh funding at an $11bn valuation, according to Bloomberg, capping a run in which the AI chip startup has roughly quintupled its worth in a matter of months. The figure is up from the roughly $10bn valuation reported when the round was first taking shape in late June.

The speed of the re-rating is the story here as much as the number. A company valued at around $2bn earlier in the year is now, on paper, worth more than five times that, a swing driven by investors racing to back any credible alternative to Nvidia. That same hunger has propelled rival bets, from Qualcomm’s move on Modular to a scatter of inference-focused startups.

SambaNova builds chips and systems designed to run large AI models efficiently, using an architecture it calls a Reconfigurable Dataflow Unit rather than the graphics-derived design Nvidia popularised. Its pitch to customers is lower cost and lower power on the inference workloads that now dominate AI spending.

Money has followed the pitch. The company has raised close to $1.5bn over its life from a roster that includes SoftBank’s Vision Fund, Vista Equity Partners, Intel, GV, BlackRock and Temasek.

The wider AI chip market is where the enthusiasm comes from. As spending shifts from training models to running them, the cost of inference has become the number that decides whether an AI product makes money, and buyers want more than one company setting the price.