Samuel Alito announces his retirement from the Supreme Court by December 31, 2026.

Question

Six frontier AI models put this at 10% by 1 Jan 2027. The market says 8%. Full reasoning from every model.

WillHappen.ai · Accepted Answer

10% — the median of 6 frontier models, resolving by 2027-01-01.

Answer

Gemini (Google): 4% — Alito is unlikely to step down during an active fall sitting when conservative political alignment remains stable. Retirement announcements overwhelmingly occur at the close of terms in June or July, leaving only a short off-cycle window by year-end. At 76, Alito remains intellectually vigorous and historically resistant to outside public pressure or media-driven retirement nudges. A sudden health emergency is the only plausible catalyst for an unexpected announcement between late September and December 31.

Answer

Claude (Anthropic): 10% — Turns on whether Alito, age 76, chooses to retire strategically while a GOP president/Senate can confirm a successor. Republicans control the presidency and Senate through 2026, giving strategic incentive to retire now rather than risk losing that control. No public signals or health issues have emerged suggesting imminent retirement as of September 2026. Justices often serve years beyond age 76; base rate for a specific justice announcing retirement in any given 15-month window is low, maybe 8-12%.

Answer

GPT (OpenAI): 12% — Absent a health shock, Alito has shown no public indication he intends to leave before the 2026 calendar year closes. At 76, he is younger than several recent late-career retirements, and his current term runs through June 2027. A qualifying result requires Alito or an authorized representative to make an explicit public announcement by December 31. The odds would rise sharply on credible reports of deteriorating health or a late-2026 announcement tied to a successor nomination.

Answer

Grok (xAI): 7% — Alito must himself announce a vacancy in the next 103 days with no prior signals. He is 76, healthy enough to author opinions through OT 2025, and has given no public hint of departure. A GOP White House and Senate already exist, so delaying past 2026 midterms or into 2027 carries little risk. Justices announce retirement in any given quarter at a ~2% base rate; nothing here raises it.

Answer

DeepSeek (DeepSeek): 9% — Alito is 76 and has shown zero signals of stepping down; a mid-term retirement announcement in the next 14 weeks would be unprecedented. Justices almost always announce retirements in late spring/early summer after the term ends, not in the fall; the window here is only ~14 weeks. Alito has publicly resisted retirement pressure, told interviewers he has no plans to go, and conservatives fear replacing him under Trump without a confirmed successor. Base rate for a specific sitting justice announcing retirement in any given 3-month stretch is roughly 3-5%; Alito sits below that given his stated intent to stay.

Answer

Qwen (Alibaba): 12% — Alito's age and health are the only real drivers; he has shown zero inclination to step aside and has ~3.5 months left. Alito is 76 and has repeatedly signaled he intends to serve for the foreseeable future, including statements as recent as 2025 pushing back on retirement speculation. The window is only ~3.5 months (Sep 19 – Dec 31, 2026); justices typically announce retirements in late spring/early summer to align with term end, making a fall… A sudden health event or a dramatic political shift (e.g., a credible threat to court legitimacy he feels compelled to address) would move this sharply, but neither is…

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