Search “Anthropic”

Anthropic opens public beta of message threads feature in Messages API

Anthropic has opened a public beta of the message threads feature on the Messages API. The API caches conversations on the server side, so developers only need to send the new message and the ID of the previous message, without resending the full conversation. The feature has already been integrated into Claude Code; on requests of 500K to 1M tokens, median time to first token is reduced by about 35%, and in long conversations the median request size drops from about 800 KB to 1.8 KB. To use it, add the thread parameter and a beta header to the request. The feature is available on Claude Platform, Claude Platform on AWS, Claude in Microsoft Foundry, and Claude on Google Cloud, and is billed at standard token prices. Another Claude Blog article states that the feature is enabled by default for most Claude Code users; threads expire 5 minutes after the last request, during which they are stored encrypted in memory and not written to disk, and token usage is unchanged.

View story:Anthropic Opens Public Beta of Message Threads Feature in Messages API

Anthropic launches message threads in public beta on the Messages API

On November 3, 2026, Anthropic launched message threads in public beta on the Messages API. According to information released by Claude Devs, this feature lets the server cache conversations between turns, so callers only need to send the new message and the previous message ID, and must add the thread parameter and beta header. The feature is available on Claude Platform, Claude Platform on AWS, Claude in Microsoft Foundry, and Claude on Google Cloud, and is billed at standard token prices. The same information states that after Claude Code integrated message threads, median time to first token on requests of 500K to 1M tokens dropped by about 35%; in long conversations, the median size of a single request fell from about 800 KB to 1.8 KB.

Anthropic launches public beta of message threads on the Messages API

On November 3, 2026, Anthropic launched message threads in public beta on the Messages API. According to information released by Claude Devs, this feature lets the server cache conversations between turns, so callers only need to send the new message and the previous message ID, and must add the thread parameter and beta header. The feature is available on Claude Platform, Claude Platform on AWS, Claude in Microsoft Foundry, and Claude on Google Cloud, and is billed at standard token prices. The same information states that after Claude Code integrated message threads, median time to first token on requests of 500K to 1M tokens dropped by about 35%; in long conversations, the median size of a single request fell from about 800 KB to 1.8 KB.

View story:Anthropic launches message threads in public beta on the Messages API

Anthropic opens applications for the Anthropic Residency

On October 31, 2026, Anthropic opened applications for the Anthropic Residency, aimed at senior technical talent such as professors, technical founders, or staff-level engineers. The program offers paid research positions lasting from 6 weeks to 6 months, with an annual salary equivalent to $350,000 to $500,000, and applications close on November 22, 2026. The program does not require a machine learning background; selected participants will receive one-on-one mentorship from Anthropic researchers, a dedicated compute budget, and self-study time, with the goal of being able to devote themselves full-time to AI safety research by the end of the program. There are currently no subsequent developments.

Anthropic opens applications for the Anthropic Residency

On October 31, 2026, Anthropic opened applications for the Anthropic Residency, aimed at senior technical talent such as professors, technical founders, or staff-level engineers. The program offers paid research positions lasting from 6 weeks to 6 months, with an annual salary equivalent to $350,000 to $500,000, and applications close on November 22, 2026. The program does not require a machine learning background; selected participants will receive one-on-one mentorship from Anthropic researchers, a dedicated compute budget, and self-study time, with the goal of being able to devote themselves full-time to AI safety research by the end of the program. There are currently no subsequent developments.

View story:Anthropic opens applications for the Anthropic Residency

Anthropic publicly submits S-1 registration statement for proposed IPO on Nasdaq

On October 26, 2026, Anthropic publicly submitted a Form S-1 registration statement, planning to list on Nasdaq under the ticker ANT. The prospectus disclosed revenue of $16.3 billion for the first half of 2026 and operating profit of $974 million in the second quarter, and listed an NVIDIA compute commitment of up to $120.5 billion. Subsequently, in its October 28 IPO filing, Anthropic acknowledged that its life sciences business lacks physical laboratory experience and flagged related drug development risks; Goldman Sachs serves as lead underwriter for the prospectus. TechCrunch reported that after the IPO, public shareholders will have almost no say over board appointments. On October 29, the prospectus disclosed four previously undisclosed Agent safety incidents. On October 30, Reuters reported that its IPO fundraising cap could reach $100 billion; Steve Eisman accused the prospectus of deliberately omitting third-quarter data. On November 2, Anthropic filed an amended S-1/A, disclosing approximately $895.4 billion in compute procurement and leasing commitments, and reporting third-quarter revenue of $16.956 billion, up 1,127% year over year, with an operating loss of $567 million for the quarter.

View story:Anthropic publicly submits S-1 registration statement for proposed IPO on Nasdaq

Bloomberg discloses that Anthropic accounted for 34.5% of SpaceX's third-quarter revenue

According to Bloomberg, Anthropic has become SpaceX's largest single customer, a position previously held by the U.S. federal government. Documents filed by SpaceX last week show that about 34.5% of revenue in the previous quarter came from a single customer, which mainly purchases computing power services from its artificial intelligence division, and people familiar with the matter confirmed that the customer is Anthropic. Anthropic mainly leases computing resources from SpaceX's data center in Memphis, Tennessee; the contract is valid until 2029, with a potential spending cap of $120.5 billion, requiring monthly payments of about $3.1 billion starting in December of this year, and the contract may be canceled after early 2027 with 90 days' written notice. Cailianshe reported on the same day, also citing people familiar with the matter, that about 34.5% of SpaceX's revenue for the quarter came from a computing power payer labeled "Customer B."

Reuters reports Anthropic plans IPO to raise up to $100 billion

On October 26, 2026, Anthropic publicly submitted a Form S-1 registration statement, planning to list on Nasdaq under the ticker ANT. The prospectus disclosed revenue of $16.3 billion for the first half of 2026 and operating profit of $974 million in the second quarter, and listed an NVIDIA compute commitment of up to $120.5 billion. Subsequently, in its October 28 IPO filing, Anthropic acknowledged that its life sciences business lacks physical laboratory experience and flagged related drug development risks; Goldman Sachs serves as lead underwriter for the prospectus. TechCrunch reported that after the IPO, public shareholders will have almost no say over board appointments. On October 29, the prospectus disclosed four previously undisclosed Agent safety incidents. On October 30, Reuters reported that its IPO fundraising cap could reach $100 billion; Steve Eisman accused the prospectus of deliberately omitting third-quarter data. On November 2, Anthropic filed an amended S-1/A, disclosing approximately $895.4 billion in compute procurement and leasing commitments, and reporting third-quarter revenue of $16.956 billion, up 1,127% year over year, with an operating loss of $567 million for the quarter.

View story:Anthropic publicly submits S-1 registration statement for proposed IPO on Nasdaq

Eisman accuses Anthropic's prospectus of deliberately withholding third-quarter data

On October 26, 2026, Anthropic publicly submitted a Form S-1 registration statement, planning to list on Nasdaq under the ticker ANT. The prospectus disclosed revenue of $16.3 billion for the first half of 2026 and operating profit of $974 million in the second quarter, and listed an NVIDIA compute commitment of up to $120.5 billion. Subsequently, in its October 28 IPO filing, Anthropic acknowledged that its life sciences business lacks physical laboratory experience and flagged related drug development risks; Goldman Sachs serves as lead underwriter for the prospectus. TechCrunch reported that after the IPO, public shareholders will have almost no say over board appointments. On October 29, the prospectus disclosed four previously undisclosed Agent safety incidents. On October 30, Reuters reported that its IPO fundraising cap could reach $100 billion; Steve Eisman accused the prospectus of deliberately omitting third-quarter data. On November 2, Anthropic filed an amended S-1/A, disclosing approximately $895.4 billion in compute procurement and leasing commitments, and reporting third-quarter revenue of $16.956 billion, up 1,127% year over year, with an operating loss of $567 million for the quarter.

View story:Anthropic publicly submits S-1 registration statement for proposed IPO on Nasdaq

Bloomberg discloses that Anthropic accounted for 34.5% of SpaceX's third-quarter revenue

According to Bloomberg, Anthropic has become SpaceX's largest single customer, a position previously held by the U.S. federal government. Documents filed by SpaceX last week show that about 34.5% of revenue in the previous quarter came from a single customer, which mainly purchases computing power services from its artificial intelligence division, and people familiar with the matter confirmed that the customer is Anthropic. Anthropic mainly leases computing resources from SpaceX's data center in Memphis, Tennessee; the contract is valid until 2029, with a potential spending cap of $120.5 billion, requiring monthly payments of about $3.1 billion starting in December of this year, and the contract may be canceled after early 2027 with 90 days' written notice. Cailianshe reported on the same day, also citing people familiar with the matter, that about 34.5% of SpaceX's revenue for the quarter came from a computing power payer labeled "Customer B."

View story:Bloomberg discloses that Anthropic accounted for 34.5% of SpaceX's third-quarter revenue

Rohan Paul says Anthropic's revenue curve will become legendary

On October 28, 2026, Rohan Paul offered the judgment that Anthropic's revenue curve will become legendary. Citing a Bloomberg chart, he said that Anthropic's revenue in the first half of 2026 was nearly 400 times its full-year 2023 revenue, and that no other company in the chart comes close to that multiple; Nvidia, the second-fastest grower, remained below 50 times throughout its first three years after going public, while Alphabet, Meta, Microsoft and SpaceX essentially stayed near the 1x baseline. The same material also states that Anthropic's full-year 2025 revenue was about 100 times that of 2023, so its revenue in just six months of 2026 was about 4 times its full-year 2025 revenue. At present, this judgment appears only in this single source, Rohan Paul, and there have been no subsequent developments.

Anthropic adds a ready-made artifacts library to Claude for Legal

On October 28, 2026, Anthropic launched a ready-to-use legal artifacts library for Claude for Legal, which teams can adapt with their own data and connectors and share across departments. The legal gallery covers tasks such as contract review, regulatory change tracking, and business legal requests; each artifact comes with examples, and all outputs include source links. Claude's official account said the library also covers scenarios such as contract review and regulatory monitoring scans, and users can start from built-in examples, add their own documents and connectors, and share them within the enterprise. Since launching in May, Claude for Legal has added more than 60 legal connectors, including Bloomberg Law, Filevine, Ivo, Legora, and Patlytics.

Anthropic rolls out Claude Duet to Claude Max users in the US

Anthropic has begun rolling out Claude Duet to Claude Max users in the US. According to a Testing Catalog report on October 28, 2026, Pro users in the US will receive invitations subsequently; expansion outside the US is planned but has no timeline yet, and EU users may wait longer. Karan Ahuja said the team is prioritizing getting US Max users off the waitlist, with more invitations to be sent this week.

Aswath Damodaran publishes a valuation article on Anthropic

Aswath Damodaran, a valuation professor at New York University, published a long article valuing Anthropic at $1.475 trillion. In the article, he noted that Anthropic's revenue in the first half of the year was about 14 times that of the same period last year, but growth slowed in the third quarter because OpenAI took market share and Anthropic lacked sufficient computing power. He mentioned that the $80.7 billion book loss in the first half mainly came from $72 billion in non-cash bond expenses, while the actual operating loss was slightly over $8 billion; Anthropic said it had achieved operating profitability last quarter. He believes the biggest risk is over $600 billion in computing power commitments, and that seven co-founders hold 50.1% of voting rights through a single class of shares.

Anthropic expands the scope of its AI for Science program

Anthropic announced that it is expanding the scope of its AI for Science program, extending from its original support for individual teams to support for science foundations, research institutions, and research teams. According to information released by Anthropic, the program will be open to leading science foundations, research institutions, and research teams worldwide. Other reports say that the expanded program covers 20 science foundations, research institutions, and research groups worldwide and provides Claude credits; the same report also notes that Anthropic has not disclosed the scale of the credit funding, and that some frontier experiments are still in early preview. There are currently no further factual developments.

Rohan Paul says Anthropic's revenue curve will become legendary

On October 28, 2026, Rohan Paul offered the judgment that Anthropic's revenue curve will become legendary. Citing a Bloomberg chart, he said that Anthropic's revenue in the first half of 2026 was nearly 400 times its full-year 2023 revenue, and that no other company in the chart comes close to that multiple; Nvidia, the second-fastest grower, remained below 50 times throughout its first three years after going public, while Alphabet, Meta, Microsoft and SpaceX essentially stayed near the 1x baseline. The same material also states that Anthropic's full-year 2025 revenue was about 100 times that of 2023, so its revenue in just six months of 2026 was about 4 times its full-year 2025 revenue. At present, this judgment appears only in this single source, Rohan Paul, and there have been no subsequent developments.

View story:Rohan Paul says Anthropic's revenue curve will become legendary

TechCrunch reports that after Anthropic's IPO, public shareholders have almost no say over the board

On October 26, 2026, Anthropic publicly submitted a Form S-1 registration statement, planning to list on Nasdaq under the ticker ANT. The prospectus disclosed revenue of $16.3 billion for the first half of 2026 and operating profit of $974 million in the second quarter, and listed an NVIDIA compute commitment of up to $120.5 billion. Subsequently, in its October 28 IPO filing, Anthropic acknowledged that its life sciences business lacks physical laboratory experience and flagged related drug development risks; Goldman Sachs serves as lead underwriter for the prospectus. TechCrunch reported that after the IPO, public shareholders will have almost no say over board appointments. On October 29, the prospectus disclosed four previously undisclosed Agent safety incidents. On October 30, Reuters reported that its IPO fundraising cap could reach $100 billion; Steve Eisman accused the prospectus of deliberately omitting third-quarter data. On November 2, Anthropic filed an amended S-1/A, disclosing approximately $895.4 billion in compute procurement and leasing commitments, and reporting third-quarter revenue of $16.956 billion, up 1,127% year over year, with an operating loss of $567 million for the quarter.

View story:Anthropic publicly submits S-1 registration statement for proposed IPO on Nasdaq

Anthropic rolls out Claude Duet to Claude Max users in the US

Anthropic has begun rolling out Claude Duet to Claude Max users in the US. According to a Testing Catalog report on October 28, 2026, Pro users in the US will receive invitations subsequently; expansion outside the US is planned but has no timeline yet, and EU users may wait longer. Karan Ahuja said the team is prioritizing getting US Max users off the waitlist, with more invitations to be sent this week.

View story:Anthropic rolls out Claude Duet to Claude Max users in the US

Anthropic partners with six institutions to advance drug discovery

Anthropic's life sciences team has established research collaborations with six institutions—Generate Biomedicines, Divergence Labs, BigHat Biosciences, Enveda, The Column Group, and Bristol Myers Squibb—to jointly develop new drugs, while also acquiring Mithril Medicine, a biotechnology company independently operated by Cody Tranbarger, to directly conduct drug research and development. Anthropic says Claude has already delivered quantifiable improvements in molecular design, manufacturing document review, regulatory filings, and clinical trial planning; for example, Enveda used Claude to review 1,061 pages of documents, identifying all 11 issues found by humans and flagging 7 additional ones, cutting manual review time from more than 25 hours to less than 3 hours. Anthropic says it plans to significantly expand this work, and if candidate drugs perform well, it expects to be ready to launch human clinical trials as early as the end of 2028.

Aswath Damodaran publishes valuation article on Anthropic

Aswath Damodaran, a valuation professor at New York University, published a long article valuing Anthropic at $1.475 trillion. In the article, he noted that Anthropic's revenue in the first half of the year was about 14 times that of the same period last year, but growth slowed in the third quarter because OpenAI took market share and Anthropic lacked sufficient computing power. He mentioned that the $80.7 billion book loss in the first half mainly came from $72 billion in non-cash bond expenses, while the actual operating loss was slightly over $8 billion; Anthropic said it had achieved operating profitability last quarter. He believes the biggest risk is over $600 billion in computing power commitments, and that seven co-founders hold 50.1% of voting rights through a single class of shares.

View story:Aswath Damodaran publishes a valuation article on Anthropic