Tehran officially declares a restricted maritime zone outside the Strait of Hormuz in September 2026.

• G
  GPTOpenAI

  The key question is whether Tehran converts reported plans into a formal navigational notice before escalation pressure eases.

  • Iran’s military and port authorities can issue a NAVTEX-style warning or public decree within days, with no external approval required.
  • Iran has repeatedly threatened or imposed de facto shipping restrictions during Gulf crises, but formal zones risk wider U.S. and insurer retaliation.
  • A verified Iranian notice to mariners or cabinet/IRGC declaration by late September would raise this sharply; a ceasefire would cut it.

  openai/gpt-5.6-terra · asked 17 Sept 2026
  63%
• D
  DeepSeekDeepSeek

  Whether Iran formalizes a zone it has already signaled, rather than letting IRGC actions speak without a public declaration.

  • Iran's armed forces have publicly floated an exclusion zone after U.S. strikes, so the political decision is already made at the top.
  • Formal declaration requires IRGC Navy and Foreign Ministry coordination, typically days to weeks, well inside the October 17 window.
  • Base rate for announced Iranian maritime restrictions after direct U.S. exchanges is high, but Tehran often prefers ambiguous 'exercises' over formal zones.

  deepseek/deepseek-v4.1-flash · asked 17 Sept 2026
  62%
• G
  GrokxAI

  Iran must issue a formal notice-to-mariners or equivalent by 30 Sep after the reported fire exchanges.

  • IRGC Navy or MFA would have to publish coordinates and duration within 13 days; informal threats do not count.
  • Base rate of official Hormuz exclusion zones is near-zero across 1980s Tanker War and 2019–2024 crises; this sits only modestly above because of the fresh kinetic…
  • A US de-escalatory statement or Iranian internal split over oil-export risk would most drop the odds.

  x-ai/grok-4.6 · asked 17 Sept 2026
  38%
• G
  GeminiGoogle

  Iran usually relies on ambiguous harassment and live-fire drills rather than legally explicit maritime exclusion zones.

  • Tehran historically uses NOTAMs or temporary naval exercise warnings rather than declaring formal permanent restricted zones.
  • Declaring an exclusion zone in international waters invites direct U.S. freedom-of-navigation enforcement and alienates Asian buyers.
  • If active U.S.-Iran skirmishes continue past late September, IRGC may formalize a temporary danger zone to deter commercial transit.

  google/gemini-3.8-flash · asked 17 Sept 2026
  37%
• Q
  QwenAlibaba

  Iran has threatened Hormuz disruption for decades but never formally declared an exclusion zone; the threshold is a specific legal act, not just posturing.

  • Iran has never issued a formal maritime exclusion zone declaration around Hormuz despite repeated threats since 1980s tanker wars.
  • A formal declaration requires IRGC Navy or port authority coordination and carries immediate escalation risk with the U.S. Fifth Fleet, raising the bar beyond rhetoric.
  • If exchanges of fire have already occurred, the incentive to formalize control rises, but Iran typically prefers asymmetric harassment over legally binding declarations…

  qwen/qwen3.8-max-0902 · asked 17 Sept 2026
  17%
• C
  ClaudeAnthropic

  Turns on whether Iran formalizes a specific declared exclusion zone versus continuing ad hoc naval threats/mining.

  • Iran has historically threatened Hormuz closures/zones but rarely issues formal legal declarations, preferring ambiguous military signaling.
  • A formal declaration would require IRGC/Supreme National Security Council coordination and risks major escalation with US Navy presence, raising the bar for action.
  • Watch for state media (IRNA, Press TV) publishing an official coordinates-based exclusion zone notice—absent that within a month, this stays informal.

  anthropic/claude-sonnet-5 · asked 17 Sept 2026
  8%

6 of 6 models answered · 55 points between the highest and lowest. None was shown the market price.