Lilac Labs

At Lilac, we automate the person taking order at the drive thru with a voice AI. We're building this for Quick Service Restaurants (QSRs) dealing with an historical labor shortage and rising wages.

Previous attempts at drive-thru voice ordering are costly to implement and have failed to deliver the accuracy and latency needed. It's now possible to build a voice interface that passes the threshold for a great customer experience.

In the United States, there are 200,000 Drive-Thrus handling 6 Billion visits a year. At 3 minutes per order, that's 34,000 human years spent on taking orders annually. Per location, on average we can deliver around $100,000 of value in terms of labor savings, upsell revenue lift, and training costs.

High-Level Overview

Lilac Labs develops Lilac Voice, an advanced voice AI system that automates order-taking at quick-service restaurant (QSR) drive-thrus. The product integrates seamlessly with existing drive-thru communication and point-of-sale (POS) systems without requiring additional hardware. It serves QSRs by accurately capturing orders (98% accuracy), reducing wait times by up to 30%, and boosting revenue through intelligent upselling that increases average order size by 15-20%. By automating the order-taking process, Lilac Labs helps restaurants save labor costs, improve customer experience, and optimize staff allocation amid labor shortages and rising wages[1][2][4][5].

Origin Story

Lilac Labs was founded by Tony Kam and Shelden Shi, former Tesla engineers and Berkeley researchers. Their background in AI and engineering inspired them to tackle the inefficiencies and labor challenges in the fast-food drive-thru industry. The idea emerged from recognizing the potential of recent AI advancements to overcome historical issues in drive-thru automation, such as poor accuracy and latency. Early traction includes successful pilots demonstrating significant labor cost savings (e.g., over $100,000 annually in California due to minimum wage increases) and improved operational efficiency[4][5].

Core Differentiators

• High Accuracy and Speed: Lilac Voice achieves 98% order accuracy with a response time of 0.8 seconds, outperforming previous voice automation attempts[1][3].
• Seamless Integration: Works with existing drive-thru communication and POS systems without new hardware, simplifying deployment[2][7].
• Advanced Noise Cancellation: Filters out environmental noise like engine sounds and background chatter to ensure clear order capture[2].
• Smart Upselling: AI suggests relevant add-ons based on order content, time of day, and historical data, increasing average ticket size by 15-20%[2][7].
• Multi-Lane Support: Can handle multiple drive-thru lanes simultaneously, reducing the need for additional staff during peak hours[2].
• Human Backup: Provides seamless handoff to human staff for complex orders, maintaining service quality[2].
• Real-Time Analytics: Offers dashboards with order patterns and performance metrics to optimize operations[2].

Role in the Broader Tech Landscape

Lilac Labs rides the wave of AI-driven automation in the restaurant and retail sectors, addressing critical labor shortages and rising operational costs. The timing is favorable due to increasing minimum wages, labor scarcity, and consumer demand for faster, more accurate service. By automating a traditionally manual and error-prone process, Lilac Labs helps QSRs improve efficiency, reduce costs, and enhance customer satisfaction. This innovation contributes to the broader ecosystem by demonstrating practical, scalable AI applications in everyday consumer interactions, pushing forward the adoption of conversational AI in service industries[1][2][4].

Quick Take & Future Outlook

Looking ahead, Lilac Labs is positioned to expand its footprint across more QSR chains and potentially other voice-driven service channels like phone orders and reservations. Trends such as continued labor cost inflation, consumer preference for contactless and fast service, and AI technology maturation will shape their growth. Their influence may evolve from a niche drive-thru solution to a comprehensive AI-powered customer interaction platform, further transforming restaurant operations and setting new standards for automation in the food service industry[7].

In summary, Lilac Labs leverages cutting-edge voice AI to automate drive-thru order-taking, delivering measurable benefits in cost savings, revenue growth, and customer experience—making it a pioneering force in the automation of quick-service restaurants.