Rivian unveils custom AI chip, lidar sensors, and robotaxi ambitions at Autonomy & AI Day

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Rivian detailed its autonomous driving roadmap at its first Autonomy & AI Day in Palo Alto, showcasing custom silicon, lidar integration, and a Large Driving Model. The company plans to launch hands-free driving across 3.5 million miles of North American roads in early 2026, with CEO RJ Scaringe hinting at future robotaxi opportunities to compete with Waymo.

Rivian Reveals Custom AI Chip and Autonomous Driving Hardware

Rivian detailed its ambitious autonomous driving strategy at its inaugural Autonomy & AI Day event in Palo Alto, California, unveiling technology that positions the electric vehicle maker to compete directly with industry leaders like Tesla, Waymo, and traditional automakers

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. The centerpiece of this push is the Rivian Autonomy Processor, a custom AI chip developed in-house using 5nm process technology in collaboration with Arm and TSMC

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. This custom AI chip powers the company's third-generation autonomy computer, known as ACM3, which delivers four times the performance of the current Gen 2 system while being 2.5 times more energy-efficient

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. The ACM3 can process approximately 5 billion pixels of sensor data per second, a critical capability for handling the expanded sensor suite planned for Rivian's upcoming vehicles

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Lidar and Radar Sensors Join Enhanced Camera Array

Unlike Tesla, which relies primarily on cameras, Rivian will integrate lidar and radar sensors into its autonomous driving stack

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. The R2 EV, Rivian's more affordable midsize SUV with an estimated $45,000 starting price, will feature a lidar sensor subtly integrated into the roofline just above the windshield

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. This design avoids the prominent "taxi-cab turret" appearance seen on vehicles like the Volvo EX90, which later removed its lidar sensor after implementation challenges

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Source: Electrek

Source: Electrek

The R2 platform will also incorporate 11 cameras totaling 65 megapixels and five redesigned radar units

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. The radar technology has advanced to the point where Rivian has eliminated ultrasonic parking sensors entirely, demonstrating confidence in the new sensor capabilities

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Large Driving Model Powers Hands-Free Driving System

Rivian has developed a Large Driving Model, an AI system trained on real-world driving scenarios that represents a shift away from traditional rules-based autonomous vehicle development

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. This approach mirrors the neural network architectures used in large language models but applies them specifically to driving tasks

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. The model will power Autonomy+, a subscription service launching in early 2026 that expands hands-free driving capabilities to over 3.5 million miles of roads across the United States and Canada

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. This coverage dramatically exceeds the approximately 150,000 miles available on the current system and surpasses competing offerings like General Motors' SuperCruise and Ford's BlueCruise

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. Rivian will charge $2,500 as a one-time fee or $49.99 per month for the Autonomy+ service, compared to Tesla's FSD (Supervised) pricing of $8,000 upfront or $99 monthly

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Universal Hands-Free Capability and Level 4 Autonomy Plans

The driver-assistance software will introduce "Universal Hands-Free" functionality, allowing point-to-point navigation where vehicles can drive from a home address to any destination without driver input, as long as lane markings are clear

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. CEO RJ Scaringe described the progression: "What that means is you can get into the vehicle at your house, plug in the address to where you're going, and the vehicle will completely drive you there"

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. Beyond hands-free operation, Rivian plans to introduce eyes-off driving capability, where drivers can use their phones or read books without actively monitoring the road

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. The ultimate goal is achieving what Rivian calls "personal L4," referring to Level 4 autonomy where vehicles can operate independently under defined conditions with no human intervention

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Robotaxi Ambitions Signal Market Expansion Plans

Scaringe hinted at Rivian's robotaxi ambitions during the event, stating: "While our initial focus will be on personally owned vehicles, which today represent a vast majority of the miles driven the United States, this also enables us to pursue opportunities in the rideshare space"

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. This positions Rivian to potentially compete with established players like Waymo and emerging autonomous ride-hail services

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. The self-driving capabilities that enable Level 4 autonomy would allow passengers to sleep in the back seat while the vehicle navigates to their destination in normal traffic and weather conditions

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In-House AI Assistant Integrates Vehicle Controls

Rivian has spent nearly two years developing an in-house AI assistant that remains separate from its $5.8 billion technology joint venture with Volkswagen

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. The Rivian Assistant, launching early next year on first and second-generation R1T and R1S vehicles, uses an agentic framework that coordinates various workflows and resolves conflicts between different AI models

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Source: TechCrunch

Source: TechCrunch

Software chief Wassym Bensaid emphasized this isn't simply a chatbot added to the infotainment system but rather a comprehensive solution integrated with all vehicle controls

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. The system combines edge and cloud AI, splitting workload between on-device processing and remote servers that handle larger models requiring more compute power

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. During a live demonstration, Rivian Assistant accessed Google Calendar, rescheduled meetings, pulled destinations from appointments, searched for nearby restaurants, and sent dining options with updated arrival times—all through conversational voice commands

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Timeline and Vehicle Integration Strategy

The R2 EV is set to begin production in the first half of 2026, but the initial launch versions will not include the ACM3 autonomy computer or lidar sensor

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Source: InsideEVs

Source: InsideEVs

The complete hardware suite won't arrive until late 2026

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. However, Rivian emphasized it can reach advanced autonomy states in current vehicles without the new hardware, though Scaringe noted the upgraded components will "enable a much higher ceiling than we have in our vehicles today"

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. The company plans to continuously improve autonomy capabilities across Gen 2 R1 and future R2 vehicles

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. This strategy keeps existing customers engaged through software updates while positioning new vehicles for more advanced features. The AI technology developments come at a critical juncture for Rivian as it depends on the R2 launch and its Volkswagen partnership to address cash flow challenges in an increasingly competitive EV market

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