US–Iran talks advance but key gaps remain

In late May 2026, diplomatic contacts between the United States and Iran focused on a revised 14-point plan submitted by Tehran. Iranian officials were reviewing the latest U.S. position that responded to this proposal, indicating that both sides remained engaged on a structured framework for further negotiations.

The 14-point plan has become a central reference for current discussions, with the new U.S. position examined in Tehran as parties assess whether there is enough common ground to move toward a broader understanding. Despite active review, no comprehensive agreement had been reached by May 23, 2026.

Pakistan continued to play a prominent mediation role in late May 2026, facilitating indirect talks between Washington and Tehran. Pakistani mediators conducted recent visits aimed at advancing discussions, underscoring Islamabad’s active involvement in keeping channels open.

Oman, alongside Pakistan, has also been involved in drafting proposals. The two mediators worked on frameworks intended to ease immediate tensions and create space for more detailed negotiations on sanctions and nuclear issues.

Drafts developed through Oman and Pakistan envision a preliminary ceasefire paired with the reopening of the Strait of Hormuz. Under these proposals, those steps would initiate a 30-day period designated for further negotiations on potential sanctions relief for Iran.

The linkage between a ceasefire, restored maritime traffic, and a defined negotiation window reflects an effort to couple de-escalation measures with a structured diplomatic timetable. However, by May 23, 2026, these draft frameworks remained proposals rather than agreed terms.

Despite narrowing some differences, negotiators remained divided on key substantive issues. Limits on Iran’s uranium enrichment emerged as a principal sticking point, with no final understanding on the scope or verification of nuclear activities embedded in the drafts as of May 23, 2026.

Control over maritime access, particularly through the Strait of Hormuz, was another central source of disagreement. Questions of security, transit, and operational control in this strategic waterway continued to separate the parties and prevented a full consensus on the mediator-backed frameworks.

As of May 23, 2026, the mediator-led drafts had helped narrow some differences but failed to resolve the nuclear provisions required for a comprehensive agreement. The discussions remained active, sustained by continued efforts from Pakistan and Oman and by Iran’s review of the updated U.S. position.

The combination of persistent mediation, structured proposals linking ceasefire, maritime access, and sanctions talks, and unresolved technical and sovereignty questions left the process ongoing but unfinished at the end of the reporting period.