01—Abstract
Summary
Summary of the 8-K filed June 23, 2026. Cited figures are marked; the original filing is the authoritative source.
Cerebras Systems reported first-quarter 2026 results (quarter ended March 31, 2026) that show strong top-line growth alongside a sharp expected margin decline.
GAAP revenue was $193.4 milliona, up 94% year-over-year, and core revenue was $191.3 million, up 92%. Cloud and other services revenue rose 178% to $82.8 million, while hardware revenue rose 59% to $110.6 million. GAAP gross margin was 44.6% and core gross margin 46.5%.
GAAP net loss narrowed to $14.0 millionb from $23.9 million a year earlier, and core operating loss improved to $3.5 million from $19.3 million. Adjusted EBITDA was positive at $12.7 million, compared with a $15.4 million loss a year earlier. The balance sheet changed substantially.
Cash, restricted cash, and investments totaled about $3.3 billionc at quarter-end, funded largely by the $1.0 billion Series H preferred round and a $1.0 billion working capital loan from OpenAI. Customer loans now total about $983 million, including $621 million current. Total liabilities rose to $2.2 billion, and the stockholders' deficit narrowed to $194.7 million from $578.7 million, partly because redeemable convertible preferred stock grew to $2.9 billion.
Operating cash flow was modestly positive at $12.3 milliond, but capital expenditures of $132 million left free cash flow negative at roughly $120 million. The $6.4 billion IPO proceeds were received after quarter-end and are not reflected in these March 31 figures. The outlook is the main point for investors.
Management guided second-quarter core revenue to about $194 million, roughly flat sequentially, with core gross margin falling to 36% to 38% and core operating margin to negative 30% to 32%. Full-year 2026 core revenue guidance of $855 million to $865 million, up about 69% at the midpoint, implies second-half revenue of roughly $470 million to $480 million, which requires a large ramp in deployments such as the OpenAI 750 MW commitment. The company also depends heavily on a few customers, including OpenAI and AWS, and the non-GAAP measures exclude stock-based compensation, customer warrant amortization, and pass-through items that affect comparability.
02—Key points
Key Highlights
- GAAP revenue of $193.4 million rose 94% year-over-year. Core revenue of $191.3 million rose 92%, with cloud and other services up 178% and hardware up 59%.
- Profitability improved sharply year-over-year: GAAP net loss narrowed to $14.0 million from $23.9 million, core operating loss narrowed to $3.5 million from $19.3 million, and Adjusted EBITDA turned positive at $12.7 million.
- Q2 2026 core gross margin guidance of 36% to 38% is well below Q1's 46.5%, and core operating margin guidance of negative 30% to 32% signals a significant near-term step-down in profitability.
- Full-year 2026 core revenue guidance of $855 million to $865 million implies strong second-half growth, with roughly $470 million to $480 million needed after the first two quarters.
- Cash, restricted cash, and investments reached $3.3 billion at March 31, 2026, but the balance is inflated by customer-linked and preferred financing; the $6.4 billion IPO closed after quarter-end.
- Customer financing is significant: loans from OpenAI total about $983 million, and redeemable convertible preferred stock stands at $2.9 billion, while the stockholders' deficit narrowed to $194.7 million.
- Free cash flow was negative at roughly $120 million in Q1, as operating cash inflow of $12.3 million was outweighed by $132 million of capital expenditures for data center buildout.
03—Questions
Frequently Asked Questions
How did Cerebras perform in the first quarter of 2026?
GAAP revenue was $193.4 million, up 94% year-over-year, with GAAP gross margin of 44.6%. GAAP net loss was $14.0 million, compared with $23.9 million a year earlier. Core operating loss was $3.5 million, and Adjusted EBITDA was $12.7 million.
Why is the second-quarter margin outlook much lower than Q1?
Management guided Q2 core gross margin to 36% to 38%, versus 46.5% in Q1, and core operating margin to negative 30% to 32%. The filing does not explain the drivers in detail. The shift likely reflects the cost of building out and ramping cloud capacity, where Q1 cloud gross margin was 52.9% on a core basis. Investors should look for management's explanation on the earnings call.
How dependent is Cerebras on a small number of customers?
The forward-looking statements cite significant reliance on OpenAI, Group 42 Holding Ltd, Mohamed bin Zayed University of Artificial Intelligence, and AWS. OpenAI is central: it has a multi-year commitment of more than $20 billion for 750 MW, has provided a $1 billion working capital loan, and is covered by a Master Relationship Agreement. Any reduction in demand or failure to meet obligations from these customers would materially affect results.
Does the $6.4 billion IPO appear in the Q1 financial statements?
No. The IPO closed in the second quarter, after March 31, 2026. The March 31 balance sheet reflects the $1.0 billion Series H preferred financing closed in February and the $1.0 billion OpenAI working capital loan. Investors will see the IPO proceeds in the Q2 filings.
What does the full-year guidance imply for the rest of 2026?
Full-year core revenue guidance of $855 million to $865 million, up about 69% at the midpoint, implies roughly $470 million to $480 million of core revenue in the second half after Q1 ($191.3 million) and Q2 guidance (about $194 million). This requires a substantial ramp in deployments and revenue. Full-year core gross margin guidance of 38% to 41% and operating margin guidance of negative 28% to 32% indicate that profitability is not expected to improve materially in 2026.
04—Continue