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.