Oct 3 (Reuters) - AI chip firm Cerebras Systems on

Friday filed to withdraw, effective immediately, its plans for

an initial public offering in the United States.

Last year, Cerebras filed for an initial public offering on

the Nasdaq. The offering was delayed by a U.S. national security

review of a $335 million investment by G42, an Abu Dhabi-based

cloud computing and AI company.

Cerebras on Tuesday said it raised $1.1 billion, bringing

the company's valuation to $8.1 billion.