Majestic Labs

“Majestic claims its architecture therefore delivers over 50 times more fast memory than that rival configuration”

“alongside 1.7 times its interconnect bandwidth”

“A standard 40U rack can hold four such servers, drawing 120 kW total”

“Prometheus server could cost between 10 and 50 times less than a GPU system of equivalent performance”

“raised $100 million in an A-round late in 2025”

“the company employs around 40 people across Tel Aviv and Los Angeles”

“One Majestic rack holds the fast memory capacity of 25 Nvidia NVL72 Vera Rubin racks at a fraction of the power”

“there can be up to “1000× more memory per processor.””

“Each Prometheus server can house up to 12 AIUs, sharing between 8 TB and 128 TB of LPDDR6 memory across one contiguous, coherent pool”

“custom memory aggregation chiplets linked by copper cables up to one metre long”

“If a 128 TB configuration relies on widely available 2 GB LPDDR6 dies, it would need roughly 64,000 of them, implying well over a hundred aggregation chiplets per server”