Sierra's Bret Taylor says the era of clicking buttons is over
Bret Taylor, co-founder and CEO of Sierra, a startup focused on developing customer service AI agents for enterprises, believes that the way humans interact with software is on the verge of a significant transformation. At the recent HumanX conference in San Francisco, Taylor discussed the launch of Sierra’s new product, Ghostwriter, which is designed to create other AI agents autonomously.
Introduction to Ghostwriter
Ghostwriter operates under the concept of “agent as a service,” where users can simply describe their needs in natural language. In response, Ghostwriter autonomously generates and deploys a specialized agent to accomplish the specified task. This approach aims to eliminate the traditional reliance on click-based web applications, which can often be cumbersome and unintuitive.
The Shift from Clicks to Language
According to Taylor, the current tools used in enterprises are often underutilized. He pointed out that many employees only log into complex systems like Workday during specific events, such as onboarding or open enrollment. He argues that instead of navigating intricate software interfaces, users will soon be able to complete their tasks using natural language prompts. “I truly think that’s where the world is going,” Taylor stated.
Rapid Deployment of AI Agents
Sierra is already leveraging Ghostwriter to deploy agents at unprecedented speeds. For instance, Taylor highlighted that the company successfully implemented an agent for Nordstrom in just four weeks. This rapid deployment capability is a testament to the efficiency and effectiveness of the Ghostwriter tool.
Financial Growth and Valuation
Since its inception, Sierra has experienced remarkable growth. The company announced last fall that it achieved a $100 million annual revenue run rate (ARR) less than 21 months after its founding. Sierra’s valuation reached $10 billion following a $350 million funding round led by Greenoaks Capital in September.
Understanding Company Needs
Taylor emphasized that most companies are not interested in developing software; rather, they seek solutions to their problems. This insight reflects a broader trend in the tech industry where businesses prioritize outcomes over the intricacies of software development.
The Challenges of AI Implementation
While Taylor’s vision of a future dominated by natural language interactions with software is compelling, several technologists and investors have expressed skepticism regarding the current state of AI agent implementation. Many companies, including Sierra and the legal AI startup Harvey, still rely on “forward-deployed” engineers. These engineers are responsible for continuously updating and fine-tuning customer agents to ensure they function as intended.
Conclusion
As the technology landscape evolves, the potential for AI-driven solutions to replace traditional software interfaces is becoming increasingly viable. Bret Taylor’s insights into the future of software interaction highlight the need for businesses to adapt to this changing environment. While the transition may not be immediate, the shift toward natural language processing and AI agents represents a significant step forward in making technology more accessible and user-friendly.
Note: The information presented in this article reflects the views and insights of Bret Taylor and the developments at Sierra as of April 2026.
