v3.26.1
Cover
Aug. 12, 2026
Cover [Abstract]  
Document Type 8-K
Document Period End Date Aug. 12, 2026
Registrant Name Cerebras Systems Inc.
Entity Incorporation, State or Country Code DE
Entity File Number 001-43284
Entity Tax Identification Number 81-2256092
Entity Address, Postal Zip Code 94085
Entity Address, State or Province CA
Entity Address, City or Town Sunnyvale
Entity Address, Address Line One 1237 E. Arques Avenue
Local Phone Number 933-4980
City Area Code 650
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Class A common stock, $0.00001 par value per share
Trading Symbol CBRS
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Entity Ex Transition Period false
Central Index Key 0002021728
Amendment Flag false