The AI company, known for its Claude models, plans to publish its initial public offering (IPO) prospectus after Monday's Labor Day holiday, which could be followed by a listing as soon as late September or October. This commitment, made on April 20, represents about a fifth of AWS's current backlog of contracted work. Amazon also invested an additional $10 billion in Anthropic this year, with up to $15 billion more available under a financing arrangement.