The US Supreme Court rules on the constitutionality of a state assault weapons ban before July 2027.

Question

Six frontier AI models put this at 38% by 20 Sept 2027. Full reasoning from every model.

WillHappen.ai · Accepted Answer

38% — the median of 6 frontier models, resolving by 2027-09-20.

Answer

Gemini (Google): 44% — SCOTUS must grant cert by January 2027 to decide the merits before July 2027, leaving only the 2026-27 term to act. Petitioners have teed up en banc rulings from the 4th and 7th Circuits, but the Court repeatedly relists or avoids the issue. Four votes to grant cert are difficult to assemble when conservative justices disagree on the historical common-use metric. A formal cert grant by mid-January 2027 is the hard deadline for argument and a published merits decision by late June 2027.

Answer

Claude (Anthropic): 22% — Hinges on whether SCOTUS grants cert on Snope/Bianchi-type circuit splits and decides merits before mid-2027. SCOTUS has repeatedly denied or delayed cert on assault weapons bans (Bianchi, Snope) despite circuit splits, showing reluctance to take these cases quickly. Even if cert is granted in the 2026-27 term, merits decisions typically take 8-12 months, making a ruling before July 2027 tight but not impossible. A grant of cert in a pending case like Snope v. Brown with expedited briefing would be the key signal that would raise this probability significantly.

Answer

GPT (OpenAI): 63% — Whether four justices grant review in the 2026–27 term before lower-court AWB cases mature further. The Court needs four votes to grant certiorari, then a merits ruling typically follows by June; the deadline covers that full term. Post-Bruen circuit litigation has produced major AWB decisions, but the Court has repeatedly declined immediate intervention in related gun cases. A clear split or a final Ninth Circuit ruling on California's ban would materially raise the chance of a 2026–27 merits grant.

Answer

Grok (xAI): 42% — OT2026 grant of a ripe AWB cert petition from a circuit split. Petitions from 4th/7th/9th Cir. AWB cases will be ripe by Oct 2026; a fall grant lets them argue spring and decide by June 2027. Post-Bruen they take 1-2 2A merits cases per term but have denied AWB cert twice already, sitting below the usual grant rate. A new circuit split or SG invitation would raise odds; another denial or DIG would drop them to near zero.

Answer

DeepSeek (DeepSeek): 22% — Turns on whether the Court grants cert in a state AWB case and issues a merits ruling, not a GVR, within one Term. Bianchi v. Brown (4th Cir.) and related AR-15 ban challenges have split circuits after Bruen; cert petitions are ripe but the Court has so far stayed its hand. For a ruling by mid-2027, cert must be granted by roughly January 2027 and argued that Term; the Court typically takes 1–2 Terms from petition to decision in major gun… Base rate for the Court hearing any given hot-button Second Amendment case in a single Term is low — it has taken only a handful of gun cases since Heller — and a GVR or…

Answer

Qwen (Alibaba): 34% — SCOTUS has multiple cert petitions on state AW bans but historically grants few gun cases and moves slowly post-Bruen. The Court granted cert in only one major gun case (Bruen, 2022) in the decade after Heller; it denied cert on multiple AW ban petitions in 2023-2024. Even if cert is granted in the Oct 2026 term, briefing and argument typically push a decision to June 2027 at the earliest, leaving almost no buffer before the deadline. The strongest signal would be a grant by January 2027; without that, the case likely resolves in the Oct 2027 term, past the resolution date.

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