May Mobility Autonomous Ride-Hail Technology (MPDM)

May Mobility is an autonomous driving company founded in 2017 and headquartered in Ann Arbor, Michigan. It develops technology for autonomous ride-hail and robotaxi services and operates on-demand vehicles in the US and Japan, with nearly half a million rides across 19 deployments. Strategic partners include Toyota and NTT.

Its core is Multi-Policy Decision Making (MPDM): a reasoning engine generates several candidate driving strategies, including deep-learned ones, scores each against hundreds of futures simulated by a world model every 200 milliseconds up to 10 seconds ahead, discards any action that fails safety checks and executes the best remaining strategy. Because every action traces back to its source strategy, decisions are auditable. The technology is offered to ride-hail platforms such as Lyft, Uber and Grab, as well as to cities, campuses and businesses.

• Multi-Policy Decision Making: multiple candidate strategies scored before each action.
• World model: hundreds of futures simulated every 200 ms up to 10 seconds ahead.
• Safety gating: any strategy failing safety checks is rejected before execution.
• Traceable decisions: each action links to its source strategy for auditing.
• Ride-hail integration: works within partner platforms for matching, routing and fleet management.
• Fifth-generation architecture: world-model based AV architecture unveiled in May 2026.

Ride-hail and taxi operators in Vietnam can plan autonomous service zones in new urban areas once regulations allow. Large campuses, airports and industrial parks can run on-demand autonomous shuttles for employees and visitors. City transport departments can pilot autonomous first and last mile services linked to metro stations.

Ride-hail providers, cities and campuses can deploy autonomous vehicles at lower cost and in less time, according to the company. MPDM adapts to local conditions such as left-hand driving without extensive retraining, which suits new markets. Smaller models and lower-cost compute reduce per-vehicle cost, and auditable decisions support safety reviews with regulators.

Ride-hail platforms are adding autonomous vehicles to their networks through partnerships rather than building their own stacks. Grab's investment and planned first joint deployment bring this model to Southeast Asia, where driver supply, safety and night-time service are recurring constraints for urban transport.

Founded in 2017 and headquartered in Ann Arbor, Michigan, with strategic partners Toyota and NTT. Partnerships include Lyft (Atlanta deployment, September 2025), Uber (May 2025), Grab (investment, October 2025) and CaoCao (June 2026). In September 2026 it announced a planned business combination with ACP Holdings Acquisition Corp.