Elon Musk is the founder and CEO of xAI (2023–present), CEO of Tesla and SpaceX, and owner of X (formerly Twitter). He co-founded and was an early funder of OpenAI (2015–2018) before departing its board. He is a named plaintiff in xAI v. Colorado, a First Amendment challenge to the Colorado AI Act, and the plaintiff in Musk v. Altman, a suit alleging OpenAI breached its founding nonprofit mission.
Role: Founder and CEO, xAI (2023–present); CEO, Tesla; CEO, SpaceX; owner, X Previous: Co-founder and early funder, OpenAI (2015–2018, departed board)
Background
Musk co-founded OpenAI in 2015 and left its board in 2018 citing conflicts with Tesla's AI work. He founded xAI in 2023, positioning it against what he characterized as OpenAI's ideological drift. xAI's Grok series is trained on the Memphis "Colossus" supercluster, one of the largest single-site training deployments in the world, built in 2024–2025. xAI shipped Grok 2, Grok 3, and Grok 4 as its flagship models. Musk acquired Twitter in 2022, rebranded it as X, and integrated Grok as a native platform feature.
Positions on AI policy
Existential risk and pace
Musk has expressed long-standing public concern about AI existential risk and signed the 2023 FLI Pause Letter. He simultaneously operates one of the industry's largest compute buildouts through xAI's Colossus, a tension noted by commentators. AI 2027 references him throughout as a principal accelerant of race dynamics, a role discussed further under AI Race Dynamics, where he appears as both driver and public critic.
US–China competition
In an interview with The Economist's Zanny Minton Beddoes reported July 26, 2026, Musk said China has a strong chance of becoming the global AI leader on the strength of its energy capacity and robotics manufacturing, that China is closer to producing its own advanced chipmaking equipment than most analysts believe, and that the United States should not ban Chinese AI models because such restrictions would do little to slow Chinese progress (Source: chatgptiseatingtheworld.substack.com). The position places him with the anti-restriction side of the open-weight debate covered in Open-Weight Frontier Models, alongside David Sacks and against the Anthropic and Kratsios distillation framing. SpaceX, in which Musk holds a controlling interest, signed the open-weights industry letter.
First Amendment and state regulation
Musk is the principal plaintiff in xAI v. Colorado (2025), challenging the Colorado AI Act on First Amendment grounds and arguing that AI outputs are protected speech (see AI and the First Amendment). The position aligns with a broader industry push to preempt state-level AI regulation on federal or constitutional grounds. The case names Colorado Attorney General Phil Weiser as defendant. On April 24, 2026, the DOJ moved to intervene on xAI's side (see xAI LLC v. Weiser (challenging the Colorado AI Act)) (Source: bloomberg.com).
Government and politics
Musk advised the second Trump administration on the "Department of Government Efficiency" (DOGE) in early 2025 before a high-profile exit. His positions have aligned with administration priorities in America's AI Action Plan and EO 14365.
China and geopolitics
Musk's public statements oscillate between warnings about Chinese AI competition and continued Tesla operations in China. He has been broadly supportive of export controls while warning against US complacency.
Litigation against OpenAI
Musk filed Musk v. OpenAI (2024) alleging breach of OpenAI's founding nonprofit mission. The trial began in federal court in Oakland (N.D. Cal.), with jury selection set for Monday, April 27, 2026, and proceedings expected through mid-May barring settlement. Defendants were Sam Altman, OpenAI, and Microsoft (Source: theinformation.com). Musk's adversary in the dispute, OpenAI co-founder Sam Altman, had been a collaborator on OpenAI's founding.
On May 18, 2026, a unanimous nine-juror advisory verdict dismissed all of Musk's claims on statute-of-limitations grounds after less than two hours of deliberation. Judge Yvonne Gonzalez Rogers adopted the verdict and dismissed the case. Musk had sought up to $150B in damages, the ouster of Altman and Brockman, and dismantling of OpenAI's for-profit arm. Musk's lawyer reserved the right to appeal; the judge described an "uphill battle" because the statute-of-limitations question was decided as factual. The verdict closed Musk's principal legal pressure path against OpenAI while leaving the substantive merits of OpenAI's for-profit pivot legally untested; per Gary Marcus's May 18 framing, the procedural ending means the substantive charitable-trust questions go permanently unanswered (Source: reuters.com; garymarcus.substack.com). See Musk v. Altman (and OpenAI / Microsoft / Brockman).
Business and compute
Stratechery's April 24, 2026 analysis linked SpaceX's reported $60B Cursor acquisition option, xAI, and X into a Musk-led "SpaceXAI" consolidation thesis (Source: stratechery.com). On April 22, 2026, Tesla and Intel announced a $3B 14A research fab partnership for custom AI silicon (Source: intel.com). Tesla reported Q1 2026 revenue of $22.4B (+16% year over year), and on the earnings call Musk pitched an "Optimus-first" pivot (Source: tesla.com). SpaceX's S-1 (April 23, 2026) disclosed CSAM-generation investigations affecting Grok as a market-access risk (see Grok (xAI)).
Commentators have noted that Musk's public positions on AI often diverge from his operational decisions, citing his existential-risk warnings against the Colossus buildout and his invocation of OpenAI's founding mission against xAI's competition with it.
Relationships
- related: Colorado AI Act — target of xAI's First Amendment challenge
- related: AI and the First Amendment — legal doctrine his lawsuit is advancing
- related: OpenAI — co-founded, departed, now litigating against
- related: Sam Altman — OpenAI co-founder, now adversary
- related: AI 2027 — scenario references him as race accelerant
- related: FLI Pause Letter — signatory
- related: AI Race Dynamics — both driver and public critic
- supports: AI First Amendment claims
- contradicts: Colorado AI Act (via active litigation)