Shock decision to give away a $20 billion Facebook fortune and they reveal exactly where the money goes
A high-powered couple is making the decision to give away much of their $20 billion fortune — and they're sharing exactly where they're putting the money. Cari Tuna, 40, is married to Facebook cofounder Dustin Moskovitz, and has been dubbed in a new profile by Forbes as 'one of the most generous philanthropists in the world.' In fact, the two are looking to give away as much of their fortune as they can. So far this 2025 fiscal year, they've already donated more than $600 million, according to Forbes, and donated $4 billion in total. Moskovitz also has another $11 billion to his name, plus the estimated $10 billion they've put into their private foundation, the Good Ventures Foundation. In addition, they operate nonprofit Open Philanthropy, which is described as a 'philanthropic funder and advisor' in multiple categories, including the global health space. Plus, not to mention, they also have an additional amount in 'donor-advised funds.'
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From newsroom to philanthropic powerhouses
Cari Tuna, 40, is married to Facebook cofounder Dustin Moskovitz, and has been dubbed in a new profile by Forbes as 'one of the most generous philanthropists in the world.' Moskovitz also has another $11 billion to his name, plus the estimated $10 billion they've put into their private foundation, the Good Ventures Foundation. They met in 2009 after Tuna was set up by Moskovitz through their mutual friend, Jessica Lessin, CEO of The Information. 'We've spent nearly every day together since,' Tuna told Forbes. She left her job in journalism in 2011, and then began her journey into the world of philanthropy. They especially seem to be focused on giving money towards AI safety, as well as pandemic preparedness, something they invested in long before COVID-19 happened. Tuna was named as one of Time Magazine's 100 most influential people in AI in 2024. And, in 2017, they donated $30 million through their Good Ventures Foundation to OpenAI's nonprofit organization. Moskovitz also invested in AI safety and research company Anthropic's $124 million funding round in 2021, which was later moved into a 'nonprofit vehicle' in 2025.
AI safety and pandemic preparedness: a long-running mission
'With hundreds of billions of dollars going into making AI more capable, there is immense competitive pressure to push the technology forward as quickly as possible,' Tuna told Forbes. 'But in order to manage the risks, you need coordination across companies and across countries… as the pace of AI development continues to accelerate, we think it might be hard for society and institutions to keep up,' she explained. According to the outlet, they assisted in donating $1 million to Future of Life Institute, which works on combatting risks from advanced technologies, like AI. Tuna was named as one of the Time Magazine's 100 most influential people in AI in 2024. The couple’s philanthropy includes Open Philanthropy and related initiatives, with investments and grants across global health and technology safety.
Open Philanthropy and the new era of billionaire giving
'When we started, there really wasn't anywhere for a donor like us ... with billions of dollars to give away over decades, who is open to any cause or way of working, in the service of helping others as much as we can,' Tuna told Forbes. Forbes reported that more than $200 million of Open Philanthropy's donations this year have come from big-name CEO's, like Stripe cofounder Patrick Collison. The couple also operate donor-advised funds and fund Open Philanthropy and the Good Ventures Foundation as part of a broader philanthropic network. 'Progress and safety don't have to be at odds,' Tuna told the outlet. 'If anything summarizes my approach, it's that it's not just one thing.'
