(Reuters) - Alphabet topped third-quarter revenue expectations on Tuesday, helped by steady growth in its digital advertising business and an AI-driven jump in demand for its cloud services.

Revenue increased 15% to $88.27 billion in the July-September period, while analysts on average expected $86.30 billion, according to LSEG data.

(Reporting by Deborah Sophia in Bengaluru; Additional reporting by Kenrick Cai in San Francisco; Editing by Anil D'Silva; Editing by Anil D'Silva and Matthew Lewis)