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Case: Anthropic's IPO New detail · 6 stories
Anthropic's amended S-1 reports a $567 million operating loss, blaming short-term compute
Revenue was $16,956 million against $11,555 million a quarter earlier, more than 46% higher; the filing also says over 90% of September code contributions were written by Claude.
Check our sources · 19 facts from 1 source
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Key points
- Anthropic's operating loss was $567 million in the September quarter, against operating income of $974 million in the June quarter.
- The filing attributes the loss primarily to $5.0 billion of compute under short-term commitments, which costs significantly more than multi-year compute, and $2.0 billion of non-cash donation matching charges.
- Aggregate committed spend is about $895.4 billion, substantially all for compute and infrastructure, with about $69.8 billion due in the 12 months after 30 September 2026.
What happened
Anthropic's revenue for the three months to 30 September 2026 was $16,956 million, more than 46% above the $11,555 million of the quarter before; the quarter before that had grown by more than 140%, from $4,731 million.
The figures come from Amendment No. 1 to the Form S-1 that Anthropic, PBC filed with the SEC on 2 November 2026 (registration no. 333-299633), which reports the three and nine months to 30 September 2026.
The filing says price reductions introduced with new model versions, and contractual discounts, took about $600 million off revenue between the June and September quarters. It puts the same effect at about $70 million between the September and December 2025 quarters.
Anthropic recorded an operating loss of $567 million for the September quarter, against operating income of $974 million for the June quarter.
It attributes this mainly to $5.0 billion of compute bought under short-term commitments, which it says costs significantly more than comparable multi-year compute, and $2.0 billion of non-cash charges from its donation matching program.
Its net loss for the quarter was $23,291 million, which includes a $21,936 million expense from changes in the fair value of convertible notes, derivative liabilities and SAFEs.
For the nine months, revenue was $33,242 million, against $2,545 million for the same months of 2025, more than 13 times as much. The nine-month operating loss was $1,260 million.
The filing says that as of and after 30 September 2026 Anthropic had purchase commitments and leases, including short-term commitments and leases not yet started, with an aggregate committed spend of about $895.4 billion, substantially all for compute and infrastructure. About $447.5 billion of it is expected before 31 December 2030 and about $69.8 billion falls due in the 12 months after 30 September 2026.
The filing also says that over 90% of contributions to Anthropic's codebase in September 2026 were written by Claude.
Underlined sentences link to the facts we checked. Dotted words open a short explainer.
Fact 1 of 19 · from U.S. SEC / Anthropic, PBC, 2 Nov 2026
As filed with the Securities and Exchange Commission on November 2, 2026. Registration No. 333-299633 ... AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT ... Anthropic, PBC
What it means for you
Our viewFor buyers of Claude this is a disclosure about the company's finances. The filing says price reductions introduced with new model versions, and contractual discounts, took about $600 million off revenue between the June and September quarters, so lower prices are part of how Anthropic's revenue moved.
It also says short-term compute costs significantly more than compute under multi-year commitments, and names that as a main driver of the loss. If you depend on Claude capacity, watch whether later filings repeat that short-term compute figure.
It adds no new facts.
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Check our sources
Every sentence above is checked against this source.
1 Anthropic, PBC Amendment No. 1 to Form S-1 (filed 2 Nov 2026)
Open the source archived copy-
Anthropic, PBC filed Amendment No. 1 to its Form S-1 with the SEC on 2 November 2026 (registration no. 333-299633).
citeAs filed with the Securities and Exchange Commission on November 2, 2026. Registration No. 333-299633 ... AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT ... Anthropic, PBC
-
The S-1/A states revenue of $16,956 million for the three months ended 30 September 2026.
citeQuarterly Consolidated Statements of Operations ... Three Months Ended ... September 30, 2026 ... Revenue ... $ 16,956
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The S-1/A states revenue of $11,555 million for the three months ended 30 June 2026.
citeQuarterly Consolidated Statements of Operations ... Three Months Ended ... June 30, 2026 ... Revenue ... $ 11,555
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The S-1/A states revenue of $4,731 million for the three months ended 31 March 2026.
citeQuarterly Consolidated Statements of Operations ... Three Months Ended ... March 31, 2026 ... Revenue ... $ 4,731
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The S-1/A reports results for the three months and the nine months ended 30 September 2026.
citeConsolidated Statements of Operations Data ... Nine Months Ended September 30 ... 2026; Quarterly Consolidated Statements of Operations ... Three Months Ended ... September 30, 2026
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The S-1/A says that from the three months to 30 June 2026 to the three months to 30 September 2026, the increase in revenue due to higher usage was partially offset by a decrease of approximately $600 million from price reductions introduced as part of new model versions and contractual discounts.
citeFor the three months ended June 30, 2026 to the three months ended September 30, 2026, the increase in revenue due to higher usage was partially offset by a decrease of approximately $600 million from price reductions introduced as part of new model versions and contractual discounts.
-
The S-1/A says that from the three months to 30 September 2025 to the three months to 31 December 2025, the increase in revenue due to higher usage was partially offset by a decrease of approximately $70 million from price reductions introduced as part of new model versions and contractual discounts.
citeFor the three months ended September 30, 2025 to the three months ended December 31, 2025, the increase in revenue due to higher usage was partially offset by a decrease of approximately $70 million from price reductions introduced as part of new model versions and contractual discounts.
-
The S-1/A states an operating loss of $567 million for the three months ended 30 September 2026.
citeOur operating loss was $567 million for the three months ended September 30, 2026
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The S-1/A states operating income of $974 million for the three months ended 30 June 2026.
citecompared to an operating income of $974 million for the three months ended June 30, 2026
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The S-1/A says the September-quarter operating loss was primarily driven by $5.0 billion of compute under short-term commitments, which currently costs significantly more than comparable compute procured under multi-year commitments, and $2.0 billion of non-cash charges related to its donation matching program.
citeOur operating loss was $567 million for the three months ended September 30, 2026, compared to an operating income of $974 million for the three months ended June 30, 2026, primarily driven by $5.0 billion of compute under short-term commitments, which currently costs significantly more than comparable compute procured under our multi-year commitments, and $2.0 billion of non-cash charges related to our donation matching program.
-
The S-1/A states a net loss of $23,291 million for the three months ended 30 September 2026.
citeQuarterly Consolidated Statements of Operations ... September 30, 2026 ... Net loss ... $ (23,291)
-
The S-1/A states a change in fair value of convertible notes, derivative liabilities, and SAFEs of $(21,936) million, an expense, for the three months ended 30 September 2026.
citeChange in fair value of convertible notes, derivative liabilities, and SAFEs ... September 30, 2026 ... (21,936)
-
The S-1/A states revenue of $33,242 million for the nine months ended 30 September 2026.
citeConsolidated Statements of Operations Data ... Nine Months Ended September 30 ... 2026 ... Revenue ... $ 33,242
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The S-1/A states revenue of $2,545 million for the nine months ended 30 September 2025.
citeConsolidated Statements of Operations Data ... Nine Months Ended September 30 ... 2025 ... Revenue ... $ 2,545
-
The S-1/A states an operating loss of $1,260 million for the nine months ended 30 September 2026.
citeConsolidated Statements of Operations Data ... Nine Months Ended September 30 ... 2026 ... Operating loss ... (1,260)
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The S-1/A says that as of and subsequent to 30 September 2026 Anthropic had entered into purchase commitments and lease agreements, including short-term commitments, as well as leases not yet commenced, with an aggregate committed spend of approximately $895.4 billion, substantially all of which is related to compute and infrastructure.
citeAs of and subsequent to September 30, 2026, we have entered into purchase commitments and lease agreements, including short-term commitments, as well as leases not yet commenced, with an aggregate committed spend of approximately $895.4 billion, substantially all of which is related to compute and infrastructure.
-
The S-1/A says approximately $447.5 billion of those commitments is expected to be incurred before 31 December 2030.
citeThese commitments include approximately $447.5 billion expected to be incurred before December 31, 2030, and substantially all of the remainder is expected to be incurred between 2031 and 2045.
-
The S-1/A says approximately $69.8 billion of those commitments is due in the 12 months following 30 September 2026.
citeApproximately $69.8 billion of these commitments are due in the 12 months following September 30, 2026.
-
The S-1/A says that over 90% of the contributions to Anthropic's codebase in September 2026 were written by Claude.
citeFor example, over 90% of the contributions to our codebase in September 2026 were written by Claude.
Every sentence above is checked against this source. Each fact has its own address you can cite.
Source 1 · U.S. SEC / Anthropic, PBC · 2 Nov 2026
Anthropic, PBC Amendment No. 1 to Form S-1 (filed 2 Nov 2026)
Anthropic, PBC filed Amendment No. 1 to its Form S-1 with the SEC on 2 November 2026 (registration no. 333-299633).
As filed with the Securities and Exchange Commission on November 2, 2026. Registration No. 333-299633 ... AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT ... Anthropic, PBC
The S-1/A states revenue of $16,956 million for the three months ended 30 September 2026.
Quarterly Consolidated Statements of Operations ... Three Months Ended ... September 30, 2026 ... Revenue ... $ 16,956
The S-1/A states revenue of $11,555 million for the three months ended 30 June 2026.
Quarterly Consolidated Statements of Operations ... Three Months Ended ... June 30, 2026 ... Revenue ... $ 11,555
Show all 19 factsShow fewer facts
The S-1/A states revenue of $4,731 million for the three months ended 31 March 2026.
Quarterly Consolidated Statements of Operations ... Three Months Ended ... March 31, 2026 ... Revenue ... $ 4,731
The S-1/A reports results for the three months and the nine months ended 30 September 2026.
Consolidated Statements of Operations Data ... Nine Months Ended September 30 ... 2026; Quarterly Consolidated Statements of Operations ... Three Months Ended ... September 30, 2026
The S-1/A says that from the three months to 30 June 2026 to the three months to 30 September 2026, the increase in revenue due to higher usage was partially offset by a decrease of approximately $600 million from price reductions introduced as part of new model versions and contractual discounts.
For the three months ended June 30, 2026 to the three months ended September 30, 2026, the increase in revenue due to higher usage was partially offset by a decrease of approximately $600 million from price reductions introduced as part of new model versions and contractual discounts.
The S-1/A says that from the three months to 30 September 2025 to the three months to 31 December 2025, the increase in revenue due to higher usage was partially offset by a decrease of approximately $70 million from price reductions introduced as part of new model versions and contractual discounts.
For the three months ended September 30, 2025 to the three months ended December 31, 2025, the increase in revenue due to higher usage was partially offset by a decrease of approximately $70 million from price reductions introduced as part of new model versions and contractual discounts.
The S-1/A states an operating loss of $567 million for the three months ended 30 September 2026.
Our operating loss was $567 million for the three months ended September 30, 2026
The S-1/A states operating income of $974 million for the three months ended 30 June 2026.
compared to an operating income of $974 million for the three months ended June 30, 2026
The S-1/A says the September-quarter operating loss was primarily driven by $5.0 billion of compute under short-term commitments, which currently costs significantly more than comparable compute procured under multi-year commitments, and $2.0 billion of non-cash charges related to its donation matching program.
Our operating loss was $567 million for the three months ended September 30, 2026, compared to an operating income of $974 million for the three months ended June 30, 2026, primarily driven by $5.0 billion of compute under short-term commitments, which currently costs significantly more than comparable compute procured under our multi-year commitments, and $2.0 billion of non-cash charges related to our donation matching program.
The S-1/A states a net loss of $23,291 million for the three months ended 30 September 2026.
Quarterly Consolidated Statements of Operations ... September 30, 2026 ... Net loss ... $ (23,291)
The S-1/A states a change in fair value of convertible notes, derivative liabilities, and SAFEs of $(21,936) million, an expense, for the three months ended 30 September 2026.
Change in fair value of convertible notes, derivative liabilities, and SAFEs ... September 30, 2026 ... (21,936)
The S-1/A states revenue of $33,242 million for the nine months ended 30 September 2026.
Consolidated Statements of Operations Data ... Nine Months Ended September 30 ... 2026 ... Revenue ... $ 33,242
The S-1/A states revenue of $2,545 million for the nine months ended 30 September 2025.
Consolidated Statements of Operations Data ... Nine Months Ended September 30 ... 2025 ... Revenue ... $ 2,545
The S-1/A states an operating loss of $1,260 million for the nine months ended 30 September 2026.
Consolidated Statements of Operations Data ... Nine Months Ended September 30 ... 2026 ... Operating loss ... (1,260)
The S-1/A says that as of and subsequent to 30 September 2026 Anthropic had entered into purchase commitments and lease agreements, including short-term commitments, as well as leases not yet commenced, with an aggregate committed spend of approximately $895.4 billion, substantially all of which is related to compute and infrastructure.
As of and subsequent to September 30, 2026, we have entered into purchase commitments and lease agreements, including short-term commitments, as well as leases not yet commenced, with an aggregate committed spend of approximately $895.4 billion, substantially all of which is related to compute and infrastructure.
The S-1/A says approximately $447.5 billion of those commitments is expected to be incurred before 31 December 2030.
These commitments include approximately $447.5 billion expected to be incurred before December 31, 2030, and substantially all of the remainder is expected to be incurred between 2031 and 2045.
The S-1/A says approximately $69.8 billion of those commitments is due in the 12 months following 30 September 2026.
Approximately $69.8 billion of these commitments are due in the 12 months following September 30, 2026.
The S-1/A says that over 90% of the contributions to Anthropic's codebase in September 2026 were written by Claude.
For example, over 90% of the contributions to our codebase in September 2026 were written by Claude.
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