Quantum Systems

Subvex

In Trials

AI-enabled unmanned underwater vehicle for autonomous ISR down to 6,000 metres, with sonar and hydroacoustic sensors and onboard edge processing. Can cruise for up to four days or sit on the seabed in passive watch for weeks, and docks with Seavex for charge and data offload.

Latest update Sep 18, 2026

Subvex

01

Current status

Announced with Seavex on 14 September 2026; sea trials as part of the same NATO exercise. No production contract disclosed.

02

Specifications2

Depth
Up to 6,000 m
Active endurance
Up to 4 days underway

weeks in passive seabed watch

03

Upcoming milestones1

Announced next steps from Quantum Systems that mention Subvex.

  1. 2026-2027

    Turn Seavex and Subvex sea trials into fielded maritime products

    Both vehicles entered NATO-linked sea trials at announcement on 14 September 2026. Watch for a first navy customer, demonstrated UAV launch/recovery from Seavex, and whether the two-month surface endurance and 6,000-metre dive rating show up in independent trials rather than brochures.

04

More from Quantum Systems10

05

More in Defense Tech