Anthropic told the world on Oct. 18 that it would hand 5% of its shares to a new entity called the Anthropic Public Benefit Fund1. Two hours later Elon Musk replied under the post. "I recommend giving the shares directly to the public," he wrote5. By Oct. 19 his reply carried 36,025 likes, against 18,519 for Anthropic's announcement2.
Its pledge arrived in a crowded month. Anthropic is fighting the Pentagon in court15. It is preparing a listing that one letter puts near $2 trillion, and a New York pension trustee wants that listing paused9.
AI Lately read Anthropic's post, every reply and the court record. It also read the White House's own account of its September lunch with Dario Amodei. Musk's night of jabs was the first read; this one asks why, and for whom.
What the Pledge Says
Anthropic's post runs seven paragraphs1. It commits 5% of its shares "subject to stockholder approval," and its board may add 2% more "for every 50% increase in the company's value above a set baseline". The baseline is unpublished. So are the governance and the milestones, which Anthropic promises "in the coming months".
The fund starts at 5% and can reach 11% after three 50% rises in value
Share of Anthropic the fund would hold at the baseline and after each 50% rise, if the board adds 2% each time
Each column is one valuation step; the magenta column is the opening 5%, and the blue columns show the ladder the board may climb at its discretion.
Source: Anthropic [1]. Chart by Ryan Elliott Dennis.
The numbers behind this chart
| Item | Value |
|---|---|
| At the baseline | 5% |
| After one 50% rise | 7% |
| After two | 9% |
| After three | 11% |
Read the ladder plainly. The fund holds 5% at the baseline and 7% after a 50% rise1. Two more rises take it to 9% and then 11%, if the board says yes each time.
Anthropic set the fund up as "a wholly-owned LLC," chosen over a 501(c)(3) "to give adjustability between different forms of giving"1. It rules out one use: "None of the Anthropic equity held by the LLC will be used for lobbying or political giving, in the US or abroad".
Why an LLC over a charity? Anthropic says the LLC can make "large donations to traditional nonprofits or direct distributions to specific populations"1. The example it gives is labor. Anthropic has committed $200 million to study AI's effect on workers, and it writes that "bolder approaches may be needed".
Add the earlier pledges and the figure grows. Co-founders promised 80% of their holdings at the founding, and about half of employees give equity that the company matches1. "Roughly 20% of Anthropic shares will be dedicated to the public good," Anthropic writes.
Why Now: Trust, an IPO and a Lawsuit
Anthropic's own reason is executive pay. "It is common practice for tech companies to offer escalating compensation awards to their executives. We are instead directing that equity to the public benefit," the company wrote1. TechCrunch added the mood music, quoting Amodei's own description of public sentiment toward AI as "fundamentally a crisis of trust"7.
The calendar supplies the rest. Anthropic raised $65 billion in May at a $965 billion valuation, in what TechCrunch called a likely last private round before an IPO8. Five percent of that valuation is about $48 billion.
Mark Levine, New York City's comptroller and a trustee of pension funds holding more than $325 billion, wrote to the company on Oct. 149. He asked it to pause an IPO "that could value the company at approximately $2 trillion" until it answered its own safety warnings.
Then there is the Pentagon. Defense Secretary Pete Hegseth directed the Pentagon to label Anthropic a supply chain risk in late February16. Amodei had refused to drop limits on mass surveillance of Americans and fully autonomous weapons13. The designation took effect on March 5, and President Trump gave the military six months to phase out Claude.
In August, Judge Rita Lin called the label "unlawful retaliation" under the First Amendment14. By September an appeals court had upheld it, 2 to 115. Anthropic now says the blacklisting has cost it billions in lost business.
Eight dated steps from the Pentagon label to the Oct. 18 pledge
Anthropic's year in Washington and in court, February to October 2026
Each point is one dated event, spaced by real time; the magenta point is the pledge.
Sources: Anthropic [1]; Office of the New York City Comptroller [9]; The Associated Press [10]; CBS News [12]; NPR [13]; TechCrunch [14]; BusinessWorld [15]; Office of Senator Chris Coons [16]. Chart by Ryan Elliott Dennis.
The numbers behind this chart
| Date | Event |
|---|---|
| Feb. 27, 2026 | Hegseth orders label. Supply chain risk, per Sen. Coons |
| March 5, 2026 | Label takes effect. Six months to phase out Claude |
| June 10, 2026 | $200M labor fund. Trump speaks of 'giving back' |
| Aug. 28, 2026 | Judge Lin rules. Label called unlawful retaliation |
| Sept. 29, 2026 | White House accord. Amodei in the East Room |
| Oct. 14, 2026 | Levine's letter. Pause the IPO |
| Oct. 14, 2026 | Rehearing sought. After a 2-1 appeals loss |
| Oct. 18, 2026 | The 5% pledge. Anthropic Public Benefit Fund |
A company in that position has reasons to show the public what it gives away. Anthropic's post leaves every one of them out.
The White House Question
Did Trump's White House, or Amodei's meetings there, shape the fund? The record shows two dated touchpoints, and both leave equity unmentioned.
June 10 was the day Anthropic announced its $200 million labor fund10. Trump told reporters in the Oval Office that day that he would soon meet AI executives "to discuss 'giving back' to the public," The Associated Press reported. Amodei published an essay the same day arguing that a basic income could be paid for "through taxes on 'relevant companies' or by raising the capital gains tax".
Then, on Sept. 29, Amodei stood in the East Room beside Musk, Mark Zuckerberg, Jensen Huang and Greg Brockman12. Trump announced a one-page accord.
CBS News reported its terms: "four layers of controls and audits," meaning internal evaluations, an outside auditor and board reviews12. A 10-person committee and a soon-to-be-named AI czar rounded it out. Asked whether it bound anyone, Trump said, "I think it's morally binding".
Both documents leave equity out. What the record shows is a president asking for "giving back" in June and a company announcing a giving vehicle in October101. Between the two sits a court fight against that president's Pentagon15.
Read that as a sequence, and the fund reads as a company buying standing. Take Anthropic's own text instead, and the fund is a pay decision the board made about itself.
OpenAI Did It First, Differently
A year earlier, OpenAI finished its own version, on Oct. 28, 202517. Its nonprofit, renamed the OpenAI Foundation, took 26% of a new for-profit called OpenAI Group. It also holds a warrant for more shares if the company keeps growing, and it appoints the group's board. Microsoft holds about 27%, worth about $135 billion at the time, and investors and employees hold the rest.
OpenAI's foundation holds 26% of its company; Anthropic's fund opens at 5%
Share of each company held by its public-benefit entity, by Microsoft, and by all of Anthropic's pledges combined
Each bar is one stake; the magenta bars are Anthropic's fund and its combined pledges, and the blue bars are OpenAI Group's two largest holders.
Sources: Anthropic [1]; TechCrunch [17]. Chart by Ryan Elliott Dennis.
The numbers behind this chart
| Item | Value |
|---|---|
| Microsoft in OpenAI Group | 27% |
| OpenAI Foundation | 26% |
| All Anthropic pledges | 20% |
| Anthropic fund, opening | 5% |
The two structures answer different questions. OpenAI's foundation owns a quarter of the company and controls its board17. Anthropic's fund is owned by the company, and the company's board decides when the fund grows1.
Control, in Anthropic's design, sits elsewhere18. A Long-Term Benefit Trust of five trustees holds a special class of stock and elects a growing share of the board.
Who Gets the Money
Anthropic names one population, workers displaced by AI, and one tool, "direct distributions to specific populations"1. Its July research agenda for the $200 million fund lists five priorities, from income support to public investment11. It funds projects of $5 million to $30 million.
Musk's answer was the public itself. After his reply to Anthropic, he wrote "This is what I will be doing," Stocktwits reported, and on Oct. 19 he posted a pledge of his own206. "Next year, I will give one of my SpaceX shares to every kid in America. This will be the first of many," Musk wrote. That post drew 289,823 likes in its first hours.
Two other beneficiaries sit in the record. Vijar Kohli, chief executive of Golden Door, told Stocktwits the fund "gives proxy to whoever runs the Public Benefit Fund. Which will be more about control rather than making money"20.
Bloomberg Government reported the same day on a network of AI-safety donors, Amodei among them, organizing against a $140 million industry super PAC19. An IPO would make some of those donors far richer. Anthropic's fund bars political giving; its shareholders stay free to give1.
The Case For and the Case Against
Anthropic makes the case for the structure in one comparison. "It is common practice for tech companies to offer escalating compensation awards to their executives. We are instead directing that equity to the public benefit," the company wrote1. Jack Clark, a co-founder, put the sum on X: "Between this and our prior commitments, roughly 20% of all Anthropic equity will be dedicated to the public good, and that commitment can grow as Anthropic grows"3.
David Sacks, a former technology adviser to Trump, made the case against in two sentences under Clark's post420. "You've put 20% of your equity in an LLC. Whether it serves the public good remains to be seen," Sacks wrote. His point is the one Anthropic's own post concedes: the governance, the baseline and the milestones are all still to come1.
What to do
Wait for the governance document before you count the 5% as given. Anthropic says the structure, the baseline and the milestones arrive "in the coming months," and the stockholder vote has yet to happen1.
Compare the two labs by who controls the money, since the percentages mislead on their own. OpenAI's foundation owns 26% and appoints the board; Anthropic's fund is owned by the company whose board decides when it grows171.
By the numbers
- 5%: the opening stake, pending a stockholder vote, plus 2% per 50% rise in value at the board's discretion1.
- $48 billion: about what 5% of the $965 billion May valuation comes to8.
- 20%: what co-founder, employee and fund pledges together would dedicate to the public1.
- 26%: OpenAI Foundation's stake in OpenAI Group, against Microsoft's 27%17.
- 36,025: Musk's reply's likes by Oct. 19, against 18,519 on Anthropic's post and 4,636 on Sacks's524.
- 289,823: people who liked Musk's SpaceX-share pledge of Oct. 196.
- $325 billion: pension assets behind Levine's letter asking Anthropic to pause its IPO9.
- $200 million: Anthropic's labor fund, which backs projects of $5 million to $30 million11.
What to watch
The governance filing for the fund will say who sits on it and what the baseline is1. It will also say whether the 2% steps are automatic or discretionary. A stockholder vote and the IPO prospectus will show whether the 5% dilutes the pension funds and venture investors who hold the rest. Musk's SpaceX pledge has a date, next year, and a count, every child in America, so it can be checked6.
Sources
- Anthropic, "Investing in the public benefit," Oct. 18, 2026, https://www.anthropic.com/news/public-benefit-fund
- Anthropic (@AnthropicAI), "We're committing a portion of Anthropic's shares to the Anthropic Public Benefit Fund," X, Oct. 18, 2026, https://x.com/AnthropicAI/status/2111881963657412903
- Jack Clark (@jackclarkSF), "Between this and our prior commitments, roughly 20% of all Anthropic equity will be dedicated to the public good," X, Oct. 18, 2026, https://x.com/jackclarkSF/status/2111918212946309445
- David Sacks (@DavidSacks), "You've put 20% of your equity in an LLC. Whether it serves the public good remains to be seen," X, Oct. 18, 2026, https://x.com/DavidSacks/status/2111958783396385152
- Elon Musk (@elonmusk), "I recommend giving the shares directly to the public," X, Oct. 18, 2026, https://x.com/elonmusk/status/2111914396490604547
- Elon Musk (@elonmusk), "Next year, I will give one of my SpaceX shares to every kid in America," X, Oct. 19, 2026, https://x.com/elonmusk/status/2112089556615123114
- TechCrunch, "Anthropic says it's committing 5% of its shares to a 'public benefit fund'," Oct. 18, 2026, https://techcrunch.com/2026/10/18/anthropic-says-its-committing-5-of-its-shares-to-a-public-benefit-fund/
- TechCrunch, "Anthropic raises $65 billion, nears $1T valuation ahead of IPO," May 28, 2026, https://techcrunch.com/2026/05/28/anthropic-raises-65-billion-nears-1t-valuation-ahead-of-ipo/
- Mark Levine, "Letter to Anthropic Re: Planned Initial Public Offering," Office of the New York City Comptroller, Oct. 14, 2026, https://comptroller.nyc.gov/reports/letter-to-anthropic-re-planned-initial-public-offering/
- The Associated Press, "Anthropic pledges $200 million to research AI's economic impact as CEO suggests job loss solutions," via WTOP, June 10, 2026, https://wtop.com/national/2026/06/anthropic-pledges-200-million-to-research-ais-economic-impact-as-ceo-suggests-job-loss-solutions/
- Anthropic, "A research agenda for the Economic Futures Research Fund," July 22, 2026, https://anthropic.com/news/economic-futures-research-fund-agenda
- CBS News, "Trump and major AI executives sign 'morally binding' voluntary controls: 'It's almost like a constitution'," Sept. 29, 2026, https://www.cbsnews.com/news/trump-ai-constitution-tech-execs-openai-anthropic-voluntary-controls/
- NPR, "Pentagon labels AI company Anthropic a supply chain risk 'effective immediately'," March 6, 2026, https://www.npr.org/2026/03/06/g-s1-112713/pentagon-labels-ai-company-anthropic-a-supply-chain-risk
- TechCrunch, "Anthropic gets its first court win over the Pentagon's supply-chain risk label," Aug. 28, 2026, https://techcrunch.com/2026/08/28/anthropic-gets-its-first-court-win-over-the-pentagons-supply-chain-risk-label/
- Reuters, "Anthropic seeks rehearing of case over Pentagon's security risk branding," via BusinessWorld, Oct. 14, 2026, https://bworldonline.com/technology/2026/10/14/786859/anthropic-seeks-rehearing-of-case-over-pentagons-security-risk-branding
- Chris Coons, "Ranking Member Coons statement on Pentagon–Anthropic dispute," Feb. 27, 2026, https://www.coons.senate.gov/news/press-releases/ranking-member-coons-statement-on-pentagon-anthropic-dispute
- TechCrunch, "OpenAI completes its for-profit recapitalization," Oct. 28, 2025, https://techcrunch.com/2025/10/28/openai-completes-its-for-profit-recapitalization/
- Anthropic, "The Long-Term Benefit Trust," Sept. 19, 2023, https://www.anthropic.com/news/the-long-term-benefit-trust
- Bloomberg Government, "Anthropic's Coming IPO Riches Fuel a New Political Donor Network," Oct. 19, 2026, https://news.bgov.com/capital-markets/anthropics-coming-ipo-riches-fuel-a-new-political-donor-network
- Yuvraj Malik, "Anthropic IPO: Musk Wants AI Firm To Hand Shares Directly To Public, Says 'This Is What I Will Be Doing'," Stocktwits via Yahoo Finance, Oct. 19, 2026, https://finance.yahoo.com/technology/ai/articles/anthropic-ipo-musk-wants-ai-032242549.html