(Bloomberg) -- The four largest players in the data center race have committed nearly $2.4 trillion in spending over the coming years, pointing to massive ongoing investment in AI infrastructure. This is a mix of short-term spending and some pledges that are as long as decades away. Take the example of Google parent Alphabet: Last week, it disclosed $902 billion of purchase commitments, contractual obligations and leases that have not yet commenced. Meta has reported a similarly sharp ramp-up, disclosing almost $700 billion in future spending. For example, Meta notes that some of its planned spending is related to consumer hardware products in the Reality Labs division.