▢ POLICY & LAW 3 MONTHS HORIZON RESOLVES 18 DEC 2026 · in 3mo

The UN Security Council takes formal action or holds a vote regarding Iran's nuclear program.

The IAEA referred Iran to the UN Security Council over lack of cooperation and new site construction. A formal UNSC resolution, sanctions vote, or presidential statement would verify council action.

Across 6 frontier models answering independently, the panel is barely on the yes side: the median is 50%.

They do not agree: Claude puts it at 74% and DeepSeek at 34%, 40 points apart. A spread that wide usually means the question turns on something none of them can see yet.

Nothing is settled until 18 Dec 2026, when the outcome is checked against sources and every number above gets a permanent score.

MODEL BY MODEL

What each one said

  • ClaudeAnthropic

    Snapback sanctions already reimposed in 2025 keep Iran a live UNSC agenda item through 2026.

    • E3 triggered snapback in 2025 reinstating sanctions resolutions, and UNSC meetings/statements on implementation are recurring through 2026.
    • IAEA reporting cycles (quarterly board reports) and Iran's continued enrichment near-certainly prompt further UNSC briefings or statements before Dec 2026.
    • Main uncertainty is whether a new formal resolution/vote occurs versus routine briefings; broad 'formal action' framing favors resolution being met.
    anthropic/claude-sonnet-5 · asked 19 Sept 2026
    74%
  • GeminiGoogle

    Escalating IAEA referrals and sunsetting JCPOA provisions compel Western council members to table resolutions before year-end.

    • The E3 and US are diplomatically primed to trigger formal snapback or force a recorded vote following the IAEA referral.
    • A formal vote requires only nine procedural days once tabled, making the three-month window more than adequate.
    • Russia or China will likely veto substantive sanctions, but the veto itself satisfies holding a formal council vote.
    google/gemini-3.8-flash · asked 19 Sept 2026
    73%
  • GPTOpenAI

    Whether the E3/US can turn the IAEA referral into a draft acceptable to China and Russia before mid-December.

    • The Council can act quickly if members circulate text, but China and Russia can block substantive resolutions with vetoes.
    • UNSC Iran nuclear votes are recurrent after IAEA escalations, yet recent great-power splits make new sanctions less likely.
    • A clear IAEA finding of weaponization or Iranian withdrawal from the NPT would sharply raise the odds of emergency action.
    openai/gpt-5.6-terra · asked 19 Sept 2026
    58%
  • GrokxAI

    P3 tabling a resolution or forcing a vote in ~90 days despite likely RU/CN opposition.

    • IAEA referral historically produced UNSC text within months (Res 1696, Jul 2006 after Feb referral); window here is only to 18 Dec.
    • US/UK/FR can put a draft on the agenda and demand a recorded vote even expecting veto; presidential statements need consensus and are less likely.
    • Base rate of post-referral Iran votes is high in 2006-10 but low since JCPOA/snapback fights; RU/CN alignment plus Gaza/Ukraine overload sit this case below that rate…
    x-ai/grok-4.6 · asked 19 Sept 2026
    42%
  • QwenAlibaba

    Depends on whether the E3/US can muster 9 votes and avoid a Russian/Chinese veto before end of 2026.

    • Snapback sanctions were triggered in late September 2025, which already constituted formal UNSC action on Iran's nuclear file—this likely already resolves YES.
    • If the question requires a *new* action beyond snapback, the E3 would need to sponsor a fresh resolution, but Russia and China would veto any additional punitive…
    • The IAEA referral and snapback mechanism already placed Iran's nuclear program formally before the Council; a presidential statement or new vote would require consensus…
    qwen/qwen3.8-max-0902 · asked 19 Sept 2026
    38%
  • DeepSeekDeepSeek

    Whether the E3 can force a snapback vote before the Council's attention shifts to the 2026 NPT review aftermath.

    • The E3 triggered snapback in August 2025, so a formal vote on reimposing sanctions is already teed up and needs only a Council scheduling decision.
    • Russia and China will likely delay or block, but a procedural vote on the snapback itself is hard to avoid once invoked under Resolution 2231.
    • Base rate for UNSC formal action within 15 months of an IAEA referral is moderate; Iran's escalation and the new site push it above the historical floor.
    deepseek/deepseek-v4.1-flash · asked 19 Sept 2026
    34%

6 of 6 models answered · 40 points between the highest and lowest. None was shown the market price.

WHAT DO YOU THINK?
loading…

Question sourced from a news sweep on 19 Sept 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.