Safe Superintelligence Inc. (SSI) is an American artificial intelligence company dedicated to the safe development of superintelligence - a computer-based agent capable of surpassing human intelligence. Founded in June 2024 by Ilya Sutskever, former chief scientist of OpenAI, Daniel Gross, former head of Apple's AI efforts, and Daniel Levy, an investor and former AI researcher at OpenAI, the company has attracted significant investor interest despite generating no revenue. In March 2025, SSI completed a $2 billion funding round at a $30 billion valuation, led by Lightspeed Venture Partners, marking a sixfold increase from its previous $5 billion valuation in September 2024.
The company's mission emphasizes a 'straight-shot' approach to superintelligence, insulating itself from short-term commercial pressures and management overhead. With a small team split between Palo Alto, California, and Tel Aviv, Israel, SSI has become a focal point in the AI safety debate, drawing both investment and acquisition interest from major tech players.
Founding and Background
Ilya Sutskever, a co-founder of OpenAI, left the organization on May 15, 2024, following a tumultuous period that included the removal and reinstatement of Sam Altman as CEO. In November 2023, Sutskever voted to remove Altman, citing concerns about communication and trust, and compiled a 70-page dossier alleging a 'consistent pattern of lying.' Sutskever and others believed OpenAI was prioritizing commercialization over safety, including seeking billions from Gulf Cooperation Council sovereign wealth funds for a neural processing unit to compete with Nvidia. After the board appointed Emmett Shear as interim CEO, Sutskever publicly apologized and joined employee calls for the board's resignation.
On June 19, 2024, Sutskever announced the founding of SSI on X, alongside Daniel Levy and Daniel Gross. Gross had previously led AI efforts at Apple, while Levy brought experience as an investor and AI researcher at OpenAI. The company's formation signaled a renewed focus on safety-first AI development, distinct from the commercial trajectories of other major labs.
Funding History
In September 2024, SSI raised $1 billion from venture capital firms including SV Angel, DST Global, Sequoia Capital, and Andreessen Horowitz. This initial round valued the company at $5 billion and was intended to build computing power and hire top talent. The March 2025 round, led by Lightspeed, brought the valuation to $30 billion, a sixfold increase in six months. Despite having only approximately 20 employees and no revenue, investor enthusiasm was driven by Sutskever's reputation and the company's safety-focused mission.
The funding round occurred amid a broader surge in AI investment, with competitors like Anthropic raising billions in 2023 and 2024, and other startups such as Figure AI and Mistral securing substantial rounds. SSI's ability to command a high valuation with minimal staff underscored the premium placed on AI safety expertise.
Strategic Partnerships and Compute
In April 2025, Google Cloud announced a partnership to provide Tensor Processing Units (TPUs) for SSI's research, giving the company access to specialized hardware for training large models. This was followed by a more significant partnership with Nvidia announced on July 27, 2026. The Nvidia deal included a planned $5 billion investment and aimed to scale SSI's compute by 'an order of magnitude,' positioning the company to train models at unprecedented scale while maintaining safety protocols.
These partnerships reflect SSI's strategy of leveraging external infrastructure rather than building its own data centers, similar to approaches taken by other AI labs like Anthropic with Google Cloud and Amazon Web Services. The Nvidia investment, in particular, signaled confidence in SSI's long-term potential, despite the company's early stage.
Acquisition Attempts and Leadership Changes
In the first half of 2025, Meta Platforms attempted to acquire SSI, but Sutskever rebuffed the offer, maintaining the company's independence. In July 2025, co-founder Daniel Gross left SSI to join Meta Superintelligence Labs, a new division focused on advanced AI research. Following Gross's departure, Sutskever became CEO of SSI, consolidating leadership.
The acquisition attempt by Meta highlighted the strategic importance of AI safety talent, as major tech companies sought to bolster their AI capabilities. Gross's move to Meta, along with other high-profile hires, underscored the competitive landscape for AI researchers.
Company Culture and Operations
SSI's website describes it as the 'world's first straight-shot SSI lab,' intended to be unaffected by 'management overhead or product cycles' and insulated from short-term commercial pressures. Employees are discouraged from listing their affiliation on LinkedIn, ostensibly due to increased employee poaching in 2025. The company maintains a small, focused team, split between its US headquarters at 317 University Avenue in Palo Alto, California, and an office leased in February 2025 at 144 Menachem Begin Road in Midtown Tel Aviv, Israel.
This culture emphasizes research over product development, with a long-term horizon for achieving superintelligence safely. The small team size, relative to other AI labs, allows for agility and a tight-knit research environment, but also raises questions about scalability.
Impact and Reception
The $2 billion funding round and subsequent partnerships have positioned SSI as a major player in the AI safety space, alongside organizations like Anthropic and academic institutions. The company's valuation, despite no revenue, reflects investor belief in the potential of safe superintelligence to transform industries. However, some critics question whether safety-focused approaches can compete with more commercially aggressive labs, and the departure of Gross raised concerns about internal stability.
SSI's influence extends to policy discussions, as its existence highlights the demand for AI development that prioritizes existential risk mitigation. The company's partnerships with major cloud providers and chip manufacturers suggest a pragmatic approach to scaling, while maintaining a safety-first ethos.