Wikipedia has it listed at about 10ish kT, with higher end estimates up around 40ish. By comparison, the Trinity test during the Second World War was roughly 20

Wikipedia has it listed at about 10ish kT, with higher end estimates up around 40ish. By comparison, the Trinity test during the Second World War was roughly 20 KT. Were they actually able to produce a 9MT weapon, it would be more than half as strong as the largest weapons test the US ever conducted.