Waymo vs Stack AV
Side-by-side comparison of AI visibility scores, market position, and capabilities
Alphabet subsidiary operating 500K+ paid robotaxi rides/week across 10 US cities; raised $16B at $126B valuation in Feb 2026; expanding to 20+ new cities and London
About
Waymo is Alphabet's autonomous vehicle subsidiary and the world's most operationally advanced robotaxi company, with roots in Google's self-driving car project that began in 2009. Spun out as an independent Alphabet subsidiary, Waymo has spent over 15 years accumulating real-world driving data, refining its sensor suite (combining lidar, radar, and cameras), and developing the Waymo Driver — the AI stack that enables fully driverless operation across diverse urban environments.\n\nWaymo One, its commercial robotaxi service, operates in San Francisco, Phoenix, Los Angeles, Austin, and additional US cities, completing over 500,000 paid rides per week as of early 2026. Unlike competitors that rely on remote safety operators, Waymo vehicles operate fully autonomously on public roads. The company is also developing Waymo Via for autonomous trucking and expanding its geographic footprint through partnerships with ride-hailing platforms and automotive OEMs.\n\nWaymo raised $16B at a $126B valuation in February 2026, reflecting investor confidence in its lead position in a winner-take-most autonomous mobility market. With expansion to 20+ new cities planned, the company is transitioning from proving the technology works to demonstrating unit economics at scale. As the robotaxi market accelerates, Waymo's decade-plus operational head start, unmatched safety record, and Alphabet's resources give it a structural advantage that rivals are struggling to close.
Stack AV is building autonomous vehicle technology for commercial trucking, founded by Argo AI alumni with deep experience in large-scale AV deployment.
About
Stack AV is an autonomous vehicle company founded in 2022 by former executives and engineers from Argo AI following that company's shutdown. The founding team brings experience building and scaling self-driving systems for both passenger and commercial vehicle applications. Stack AV is focused on the commercial trucking market, developing autonomous driving software designed for long-haul freight operations. The company raised $150M in Series A funding led by SoftBank to accelerate development of its autonomous trucking system. Stack AV is developing a full-stack autonomous driving solution covering perception, prediction, planning, and mapping optimized for the operational design domain of highway freight. The company benefits from its founders' experience navigating the technical and regulatory challenges of AV deployment at scale. Stack AV represents the continued consolidation of AV talent into trucking applications as the industry pivots from passenger autonomy toward the freight sector where economics and regulatory pathways are more favorable.
AI Visibility Head-to-Head
Capabilities & Ecosystem
Capabilities
Also Compare
Track AI Visibility in Real Time
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.