X Square Robot has secured four consecutive financing rounds, with the company’s valuation surpassing US$2.8 billion, according to Business Line and The Hindu. The reports describe the fundraising as part of X Square Robot’s efforts to build what it calls “physical AI foundation models,” aiming to apply foundation-model approaches to robotics and real-world environments. Both outlets present the announcement as a continuation of prior investment and indicate that the latest round contributes to an overall valuation exceeding US$2.8 billion. The articles do not add further detail in the provided excerpts about the amount raised in each round, specific investor identities, or the timeline for closing the rounds. Overall, the coverage converges on the same core points: the company completes a sequence of four funding rounds and reaches a valuation above US$2.8 billion while working toward physical AI foundation models.