Iran and the United States agree on an interim diplomatic deal through Qatar-led mediation.

Question

Six frontier AI models put this at 20% by 6 Dec 2026. Full reasoning from every model.

WillHappen.ai · Accepted Answer

20% — the median of 6 frontier models, resolving by 2026-12-06.

Answer

Gemini (Google): 27% — A one-month window is too tight for formal US-Iran pacts amid deep domestic vetoes in both Washington and Tehran. Doha mediated the 2023 prisoner swap, but expanding to a security or nuclear pause requires weeks of technical verification. Iran supreme leader approval and US congressional pushback typically drag even minor bilateral understandings past 30 days. A verified ceasefire framework announced directly by Qatari PM Al Thani before December 6 is the only viable pathway.

Answer

Claude (Anthropic): 15% — Hinges on whether Tehran and Washington can bridge enrichment/sanctions gaps before 2026-12-06. Qatar mediation has produced talks but no signed interim deal despite years of on-off negotiations since JCPOA collapse. Both sides face domestic political constraints (hardliners in Iran, hawkish Congress/Israel pressure in US) making concessions costly. A ceasefire-adjacent framework or partial sanctions relief announcement would most raise odds, but full 'interim deal' status remains a high bar in one month.

Answer

GPT (OpenAI): 42% — A deal depends on Tehran and Washington accepting Qatar’s sequencing on de-escalation, sanctions relief, and verification. One month is enough for Qatar to broker a limited pause, but not to settle nuclear, regional, and sanctions disputes. Past Gulf-mediated US-Iran understandings have produced swaps and pauses, while formal interim bargains often collapse over enforcement. Odds rise sharply if both sides first halt retaliatory strikes and Qatar secures a written, time-limited implementation schedule.

Answer

Grok (xAI): 18% — Qatar must lock both sides onto written terms in 30 days amid live hostilities. Washington and Tehran each have to accept and announce identical language by 6 Dec; neither has done so in prior short windows. Qatar has delivered prisoner swaps, not nuclear or ceasefire accords; the 2013 interim deal took months of direct talks. A unilateral pause after a major strike would be the only development that could compress the timeline.

Answer

DeepSeek (DeepSeek): 14% — Whether Tehran accepts limits on enrichment before the December window closes, with Qatar only able to shuttle text. Qatar has mediated prisoner swaps and nuclear talks before, but never produced a signed US-Iran interim deal; the 2023 Doha prisoner exchange took months of quiet talks. The US Treasury and Iran's Supreme National Security Council both must sign off, and enrichment suspension remains the core gap neither has bridged since 2018. One month is short for a deal requiring IAEA access terms and sanctions relief sequencing; only a direct Trump-Khamenei-level green light would compress that timeline.

Answer

Qwen (Alibaba): 22% — One month is too short for formal US-Iran agreement even with active Qatari mediation, given historical friction in finalizing terms. US-Iran formal deals are extremely rare; the 2023 prisoner swap took months of final negotiation after framework was set, and this is broader in scope. Both Supreme Leader's office and US executive must sign off, and domestic hardliners on each side can stall at the last step. Would move sharply higher if a specific text were leaked or a summit date announced within the next two weeks.

Iran and the United States agree on an interim diplomatic deal through Qatar-led mediation.

Russia and Ukraine formally agree to extend the localized Oleshky ceasefire into a broader truce.

The effective ceasefire between the United States and Iran holds through November 15, 2026.

A nuclear weapon is used in military conflict before the end of 2026.

The New START treaty or an equivalent bilateral US-Russia nuclear framework expires without replacement before 2027.