sonnet.ai
Sonnet (SONNET Co., Ltd.) is a South Korean full-stack Level 4 autonomous driving software company that licenses its AutoDrive™ stack to robotaxi, shuttle, steel-mill, and port-terminal operators, and plans to launch its own 'raxi' P2P robotaxi service in Daegu Technopolis in May 2026.
- Company typePrivate
- Founded2017
- HeadquartersDaegu, South Korea
- Headcount1–10
- GTM typeB2B and B2C
- OfferingSoftware
What sonnet.ai does
Sonnet (SONNET Co., Ltd., sonnet.ai) is a South Korean full-stack autonomous driving technology company founded in 2017 in Daegu as the first startup spun out of DGIST research. Its core product, AutoDrive™, is a proprietary layered Level 4 autonomous driving software stack combining AI-based real-time perception, large-scale SLAM with centimeter-level 3D positioning, multi-property sensor fusion (LiDAR, radar, cameras, GNSS), SOTIF/ISO 21448-compliant safety-map technology, and AI model lightweighting that enables inference on low-cost NVIDIA Jetson edge hardware. The software is vehicle-type agnostic and is deployed across robotaxis, autonomous shuttles, industrial locomotives (TLC), and port equipment.
Sonnet monetizes AutoDrive™ through three primary streams: licensing the full-stack software (including the reactivation of previously idle Navya shuttles in Korea), B2B sales of autonomous vehicles and industrial solutions, and a planned consumer-facing robotaxi service called 'raxi' launching commercially in Daegu Technopolis in May 2026. Industrial applications — specifically an autonomous Torpedo Ladle Car system for steel mills and a smart port suite (CPS, AutoGate, V-Fence, autonomous YT/AGV) deployed at Busan New Port — represent a second growth axis. The company has secured multiple regulatory firsts in Korea, including the first Level 4 certification of a Navya shuttle in Korea, and has logged 100,000+ km of accident-free autonomous driving on public roads. Customers are predominantly Korean municipalities and large industrial operators; international expansion is in early stages via offices in San Jose and Bangkok, a Navya shuttle export to Thailand, and a global distribution partnership with Sweden-based Zuragon. The company is currently raising its first institutional Series A funding round, led by CEO Keesoep Kim (with founder Joonwoo Son now serving as Chairman).
sonnet.ai firmographics
Firmographics- Name
- sonnet.ai
- Legal name
- Sonnet Co., Ltd.
- Website
- https://sonnet.ai
- Company type
- Private
- Founded year
- 2017
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Sonnet (SONNET Co., Ltd.) is a South Korean full-stack Level 4 autonomous driving software company that licenses its AutoDrive™ stack to robotaxi, shuttle, steel-mill, and port-terminal operators, and plans to launch its own 'raxi' P2P robotaxi service in Daegu Technopolis in May 2026.
- Ownership category
- akta.pro rank
sonnet.ai industry classification
Industry- Product category
- Autonomous Driving Software & Robotaxi
- NAICS
- Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)
- SIC
- Services-Computer Integrated Systems Design (7373)
- akta.pro primary industry
- Autonomous Ride-Hailing / Robotaxi Platforms (THADADAL)
- akta.pro secondary industries
- Connected Vehicle & V2X Traffic Operations (RSUs, SPaT/MAP, CV Applications) (TLAJACAJ), Motion & Machine Control (CNC, Robotics Controllers, Servo/Motion Controllers) (IMAGABAG)
Keywords
Where sonnet.ai is headquartered
LocationHeadquarters
- HQ city
- Daegu
- HQ country
- South Korea
- HQ region
- Asia
Offices4 records
Markets served
sonnet.ai business model
Business model- GTM type
- B2B and B2C
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Operations, Infrastructure, Marketing or Sales
Revenue model
- Robotaxi Commercial Service (raxi): Sonnet operates the 'raxi' robotaxi service in Daegu Technopolis (launching commercially in May 2026). Passengers hail vehicles via a dedicated app. Revenue is generated through fare collection from end users (riders). Early rider recruitment program underway ahead of the commercial launch.
- AutoDrive™ Software Licensing: AutoDrive™ full-stack autonomous driving software is licensed to third parties. Sonnet independently manages both hardware and software for Navya shuttles in Korea under its own warranty, enabling reactivation of previously idle autonomous vehicles.
- Autonomous Vehicle Sales (B2B): Sonnet sells autonomous vehicles (modified Kia Carnival, Hyundai Kona EV, Navya shuttle, etc.) and autonomous driving platform solutions to enterprise customers including port operators and industrial facilities. A 15-seater autonomous shuttle is planned for release by late 2025. The 8-seat Navya shuttle has been exported to Thailand.
- Smart Port Solutions (B2B): Sonnet provides industrial autonomous solutions including automated container tracking (CPS), AutoGate automation, V-Fence perimeter security, and autonomous YT/AGV systems to port terminals (e.g., Busan New Port) and steel plants. Revenue is generated through project-based sales and solution deployment contracts.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | — | Gangneung tourist shuttle (discontinued) — free service |
Go-to-market motion3 records
Distribution channels5 records
Marketing channels6 records
sonnet.ai product offering
Product offeringCore offering
Sonnet develops a proprietary full-stack Level 4 autonomous driving software platform called AutoDrive™ that enables real-time perception, decision-making, path planning, and vehicle control across multiple vehicle types. The company sells and licenses this software along with integrated autonomous vehicles (robotaxis, 15-passenger shuttles, retrofitted Navya shuttles, KONA EV, CARNIVAL) to enterprise and government customers, and operates its own point-to-point robotaxi service (raxi) in Daegu Technopolis. It also delivers industrial autonomous solutions including autonomous torpedo ladle cars for steel mills and smart port systems (container positioning, gate automation, perimeter security) at terminals such as Busan New Port.
Product overview
Sonnet.AI operates as a full-stack autonomous driving technology company offering both consumer-facing robotaxi services and industrial autonomous driving solutions. Its core technology is the AutoDrive™ software platform, which powers the RAXI™ robotaxi integrated service brand — covering autonomous vehicles, a booking app, fleet management, and a tele-operation layer. RAXIAN represents the company's next-generation purpose-built autonomous vehicle. In parallel, Sonnet has developed a suite of industrial autonomous driving solutions: the TLC (Torpedo Ladle Car) system for steel mill molten metal transport, and the Smart Port Solutions product line encompassing Automated YT vehicles, V-Fence 3D LiDAR perimeter surveillance, 3D CPS container positioning, and AutoGate gate automation. The product portfolio spans passenger autonomous vehicles (15-passenger bus, Navya shuttle, KONA EV, CARNIVAL) alongside industrial automation platforms, all unified by the AutoDrive™ stack.
Differentiator
Problem solved
Functional benefit
Brands
- RAXI (raxi): Comprehensive robotaxi integrated platform brand encompassing autonomous vehicles based on Sonnet's AutoDrive™ software, reservation and control systems, and robotaxi services. Targets point-to-point (P2P) mobility services.
- AutoDrive™
Products and services
- AutoDrive™ Sonnet's proprietary full-stack Level 4 autonomous driving software platform providing real-time perception, decision-making, path planning, and vehicle control. Integrates sensor fusion, SLAM-based localization, SOTIF-compliant safety mapping, and AI model lightweighting to enable autonomous operation on low-cost NVIDIA Jetson edge hardware. Vehicle-type agnostic, applicable across robotaxis, autonomous shuttles, autonomous locomotives, yard trucks, and IGVs.
- RAXI™ Comprehensive robotaxi integrated platform brand encompassing autonomous vehicles powered by AutoDrive™ software, reservation and booking applications, fleet management systems, and control center operations. Targets point-to-point (P2P) mobility services without fixed routes.
- TLC (Torpedo Ladle Car) Autonomous Driving Autonomous driving application for torpedo ladle cars that transport hundreds of tons of molten iron from blast furnaces to steel plants. Uses sensor fusion to respond to moving obstacles and SLAM for precise positioning in GPS-denied factory environments, enabling safer 24-hour factory operations.
- Smart Port Solutions Suite of autonomous driving and sensing solutions for port terminals, including Automated YT (Yard Truck) conversion, V-Fence 3D LiDAR virtual fence for perimeter surveillance, 3D CPS Chassis Positioning System for container trailer guidance, and AutoGate container terminal gate automation with 99.9% recognition accuracy.
- Tele-Operated Driving System Remote control system enabling skilled human operators to intervene in autonomous vehicles in rare emergency situations. Uses low-latency Peer-to-Peer communication, cybersecurity protections, and operates over commercial LTE routers without dedicated communication infrastructure.
- Autonomous Bus (15-Passenger) Dedicated autonomous shuttle with 15-passenger capacity, max autonomous driving speed of 50 km/h, LFP 52.2 kWh battery providing 15-hour operation time. Equipped with 6 Solid State LiDAR units (front, rear, 360°), 6 cameras, IMU-integrated RTK-grade GPS, Industrial AI PC, CAN Gateway, and VCU. Designed for urban environments including autonomous shuttles and village bus services.
- Navya Shuttle (AutoDrive-Integrated) 8-seat electric shuttle bus retrofitted with Sonnet's AutoDrive™ system, dramatically improving performance over the stock Navya software. Driverless autonomous-only design with 40 km/h max speed, LFP 33 kWh battery, 8-hour operation time. Exported to Thailand; first Navya shuttle in Korea to receive Level 4 certification from MOLIT in December 2024.
- Autonomous KONA EV Type A autonomous vehicle based on Hyundai's compact electric SUV. Enables full autonomous driving functionality with a single Rotating 32-channel LiDAR, front radar, front cameras, and Industrial AI PC. Supports robotaxi operations and technology demonstrations with a driving range of approximately 320 km.
- Autonomous CARNIVAL Type A autonomous van using the KIA Carnival platform with clustered Embedded Edge AI boards (3 units) for autonomous driving. Supports P2P point-to-point services and robotaxi operations with 11-passenger capacity and approximately 500 km range on a 3.5L V6 gasoline powertrain.
Quantifiable outcome
- Accident-free autonomous driving for over 100,000 km on public roads
- +4 more outcomes
Companies that use sonnet.ai
Customer profileNamed customers10 records
Segments3 records
Ideal customer profiles3 records
sonnet.ai technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
AI capability7 records
Feature12 records
sonnet.ai partnerships and signals
Strategic signalPartnerships
14 partnerships are on record, tiered secondary, core and minor.
- Daishin SecuritiessecondaryDaishin Securities co-sponsored the global trends seminar on autonomous mobility (July 2023) alongside Sonnet and DGIST, contributing to industry ecosystem building and networking.
- Kakao MobilitycoreKakao Mobility joined the Sonnet-Inavi consortium as the second year kick-off partner for the government-funded Level 4 Minivan-Class Autonomous Driving Platform project (April 2022), supported by Korea's Ministry of Trade, Industry and Energy.
- ThinkwaresecondaryThinkware is a consortium member in the Level 4 Minivan-Class Autonomous Driving Platform R&D project alongside Sonnet, Kakao Mobility, Inavi Systems, and DGIST, supported by Korea's Ministry of Trade, Industry and Energy.
- ZuragoncoreZuragon (founded 2011, Sweden) focuses on tools for development and test of Active Safety Systems (ADAS). Sonnet.AI is appointed representative for Zuragon's products in South Korea, and Zuragon enables global distribution of Sonnet.ai's IPR for autonomous solutions through its global sales network. Mutual, bidirectional partnership.
- DGIST (Daegu Gyeongbuk Institute of Science and Technology)coreDGIST is the founding institution of Sonnet and a core consortium partner in the five-year national R&D project 'Development of a Point-to-Point (P2P) Autonomous Minivan Platform.' Sonnet was established as the first startup founded by a DGIST researcher in 2017. DGIST and Sonnet co-organized the global trends seminar on autonomous mobility (July 2023).
- iNavi Systems Corp.coreiNavi Systems Corp. is part of the core Sonnet consortium for the P2P Autonomous Minivan Platform R&D project (together with DGIST and THINKWARESYS), contributing to precision mapping and Navigation Data Standard (NDS) integration.
- THINKWARESYScoreTHINKWARESYS is a consortium partner in the P2P Autonomous Minivan Platform R&D project, collaborating across all core autonomous driving technology domains.
- Inno DesignsecondarySonnet is developing a 4-ton multi-purpose unmanned platform with Inno Design, targeting both logistics and passenger use. Inno Design contributes vehicle platform design and engineering.
- Daegu CitycoreDaegu City has partnered with Sonnet as the designated operator of autonomous paid transport pilot service (since 2019). Daegu City collaborated on the Science Day robotaxi event (April 2022) and provides regulatory support for the robotaxi commercial launch in Daegu Technopolis (May 2026).
- Samsung ElectronicssecondarySamsung Electronics participated as a corporate representative in Sonnet's global trends seminar on autonomous mobility (July 2023).
- Korea Autonomous Driving Development Innovation Foundation (KADIF)coreSonnet has been leading the KADIF Phase 1 'Designated Area-Based Point-to-Point Level 4 Autonomous Minivan Platform Technology Development' project since 2021, showcasing results at the Seoul Mobility Show. KADIF is the primary national autonomous driving innovation foundation.
- Korea Railroad Research Institute (KRRI)secondarySonnet developed and supplied a LiDAR-Radar sensor fusion viewer to the Korea Railroad Research Institute (2018). This is part of Sonnet's broader industrial and mobility autonomous driving solutions.
- SWM Co., Ltd.secondarySWM Co., Ltd. collaborated with Sonnet, Daegu City, and the National Daegu Science Museum on the Science Day autonomous robotaxi experience event (April 2022).
- National Daegu Science MuseumminorPartnered with Sonnet and Daegu City for the Science Day autonomous robotaxi event in April 2022.
Scale indicators6 records
Recent moves10 records
Expansion highlights7 records
sonnet.ai competitors and assessment
Company assessmentDirect peers
- Pony.ai: Pony.ai develops Level 4 autonomous driving technology and operates robotaxi services in China and the US. Like Sonnet, it pursues a full-stack AV software platform, though at significantly larger scale, broader geographic footprint, and substantially greater capital base.
- WeRide: WeRide is a publicly listed Chinese autonomous driving company operating robotaxi, robobus, and autonomous logistics services. It is a direct peer in commercial L4 robotaxi commercialization and full-stack AV software development, but operates at much larger fleet scale.
- Motional: Motional is the Hyundai-Aptiv joint venture developing Level 4 robotaxi services (e.g., Lyft partnership in Las Vegas). It is the most directly comparable Korean-tied L4 robotaxi competitor and benefits from Hyundai/OEM backing that Sonnet lacks.
- Navya: Navya is the French autonomous shuttle manufacturer whose idle Korean vehicles Sonnet retrofitted and certified for L4 operation. It is both a peer (autonomous shuttle deployments globally) and a supplier/integration partner to Sonnet, sharing the same shuttle product platform.
- EasyMile: EasyMile is a French autonomous shuttle technology provider deploying driverless shuttles at airports, campuses, and city pilots. It is a direct peer in autonomous shared-mobility shuttles and competes in the same public-sector/municipal bid markets that Sonnet targets in Korea.
Broad incumbents
- Waymo: Waymo (Alphabet) is the leading commercial robotaxi operator in the US. It is a broad incumbent defining the category benchmark for L4 robotaxi commercialization that Sonnet is just entering, with vastly greater capital, fleet size, and operating data.
- Cruise: Cruise (General Motors) is a major robotaxi program paused in late 2023 and now restructuring. It is a broad incumbent in commercial robotaxi and illustrates both the scale requirements and operational risk profile relevant to Sonnet's Daegu launch.
- Mobileye: Mobileye (Intel) is a global supplier of ADAS and autonomous driving technology, including the Mobileye Drive™ L4 platform. It is a broad incumbent competing with Sonnet's AutoDrive™ stack for OEM and fleet operator software licensing deals.
- Aurora Innovation: Aurora Innovation is a US-based autonomous driving company developing the Aurora Driver platform across robotaxi and autonomous trucking. It is a broad incumbent peer in full-stack AV software commercialization, with a different (trucking-heavy) near-term focus.
Regional players
- 42dot: 42dot is Hyundai Motor Group's autonomous driving subsidiary (formerly Hyundai Autonomous Driving) developing robotaxi and software-defined vehicle technology. It is the leading Korean AV competitor with deep OEM support and direct overlap with Sonnet's Korean robotaxi ambitions.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
sonnet.ai social profiles
Digital presencesonnet.ai compliance and trust
Trust signalCompliance1 record
sonnet.ai financial estimates
Financial estimateRevenue estimate
Valuation estimate
sonnet.ai leadership team
Management profileNumber of profiles
Profiles2 records
sonnet.ai funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
sonnet.ai M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about sonnet.ai
What does sonnet.ai do?
Sonnet develops a proprietary full-stack Level 4 autonomous driving software platform called AutoDrive™ that enables real-time perception, decision-making, path planning, and vehicle control across multiple vehicle types. The company sells and licenses this software along with integrated autonomous vehicles (robotaxis, 15-passenger shuttles, retrofitted Navya shuttles, KONA EV, CARNIVAL) to enterprise and government customers, and operates its own point-to-point robotaxi service (raxi) in Daegu Technopolis. It also delivers industrial autonomous solutions including autonomous torpedo ladle cars for steel mills and smart port systems (container positioning, gate automation, perimeter security) at terminals such as Busan New Port.
Is sonnet.ai a public or private company?
sonnet.ai is a private company. It is classified as venture growth investor backed and is currently operating.
When was sonnet.ai founded?
sonnet.ai was founded in 2017. It employs 1 to 10 people.
Where is sonnet.ai based?
sonnet.ai is headquartered in Daegu, South Korea, in the Asia region.
How does sonnet.ai make money?
Four revenue lines are on record. Robotaxi Commercial Service (raxi) is the primary driver. The others are autoDrive™ Software Licensing, autonomous Vehicle Sales (B2B) and smart Port Solutions (B2B).
Who are sonnet.ai's main competitors?
Direct peers on record are Pony.ai, WeRide, Motional, Navya and EasyMile. Broad incumbents are Waymo, Cruise, Mobileye and Aurora Innovation. 42dot is listed as a regional player.
Does sonnet.ai have an API?
No public API is recorded for sonnet.ai.
What industry is sonnet.ai in?
sonnet.ai's product category is Autonomous Driving Software & Robotaxi. Its primary akta.pro industry code is THADADAL, Autonomous Ride-Hailing / Robotaxi Platforms, with a secondary code of TLAJACAJ, Connected Vehicle & V2X Traffic Operations (RSUs, SPaT/MAP, CV Applications). Its NAICS code is 334511 and its SIC code is 7373.