April 10, 2026
What are Decagon's specific capabilities, pricing model, and growth metrics in comparison to Sierra?
Sierra and Decagon are emerging as fast-growing competitors in the AI customer support market, challenging incumbents like Front . Sierra's platform is designed to empower non-technical enterprise teams to build and deploy their own AI agents using no-code tools, though an SDK is also available for more technical users [9, 19, 21]. This approach has proven effective, with customers reporting that 50% to 90% of their service interactions become fully automated . The company specifically targets large, non-tech enterprises, with over 25% of its customers generating more than $10 billion in annual revenue; its client roster includes major corporations like Cigna, DirecTV, and Blue Shield of California [7, 8]. Decagon, while also targeting enterprises, appears to have started with a focus on digital-native companies such as Rippling and Notion to iterate on its product [4, 14]. Another competitor, GigaML, seeks to differentiate itself by offering a product that works better out-of-the-box for faster onboarding .
The two companies employ fundamentally different pricing models. Sierra utilizes a purely outcome-based model, charging customers a pre-negotiated fee only when its AI agent successfully resolves a customer issue without any human intervention [1, 3, 13]. If the agent fails or requires human assistance, there is no charge for the interaction . To ensure customer commitment and filter out what it calls "AI tourism," Sierra requires paid proof-of-concept (POC) engagements before full deployment . In contrast, Decagon prices its service based on the number of conversations its AI agent handles . This usage-based model is designed to align with the "cost per contact" metric that is a standard key performance indicator for its enterprise customers . During its initial customer discovery phase, Decagon found potential customers expressed a willingness-to-pay in the low-to-mid six-figure range annually .
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Sierra has established a significant lead in the market based on its growth metrics and self-reported scale. The company achieved a rare milestone by reaching $100 million in Annual Recurring Revenue (ARR) in just seven quarters . Co-founder Bret Taylor claims Sierra is the clear market leader in AI agents for customer service and estimates the company is three to four times larger than its nearest competitor [16, 18]. This rapid scaling is attributed in part to Taylor's extensive network and role as chairman of OpenAI, which provides a significant sales advantage . While Decagon is also described as a "fast-growing competitor" and is expanding internationally with plans for a European office, specific growth metrics like ARR are not available in the provided materials, precluding a direct quantitative comparison [2, 12].
What the sources say
Points of agreement
- •Both Sierra and Decagon are identified as fast-growing competitors in the AI customer support market.
- •Both companies are expanding their physical presence, with Sierra having multiple offices and Decagon planning a new one in Europe.
- •Both companies target enterprise customers for their AI agent services.
Points of disagreement
- •The companies have different pricing models: Decagon charges per conversation handled, while Sierra charges per successfully resolved issue.
- •Sierra's growth is quantified at $100 million ARR in seven quarters, whereas Decagon's growth is only described qualitatively.
- •Sierra provides no-code tools and an SDK for customers to build their own agents, a capability not mentioned for Decagon.
- •Sierra requires paid proof-of-concept engagements, a practice not mentioned for Decagon.
Sources
How is AI Different Than Other Technology Waves? (With Bret Taylor and Clay Bavor) [ACQ2]
This source explains Sierra's outcome-based pricing model and its provision of no-code tools for customers to build AI agents.
Rebuilding Front for the AI Era | CEO Dan O’Connell
This source establishes that both Sierra and Decagon are emerging as fast-growing competitors within the customer support sector.
How Sierra Is Pulling Ahead in the AI Race | Co-founder Bret Taylor
This source provides key growth metrics for Sierra, including its achievement of $100 million ARR in seven quarters and its focus on large enterprise clients.
No Priors Ep. 132 | With Decagon CEO and Co-Founder Jesse Zhang
This source details Decagon's pricing model, which is based on the number of conversations its AI agent handles.
He saved OpenAI, invented the “Like” button, and built Google Maps: Bret Taylor (Sierra)
This source reinforces Sierra's outcome-based pricing and quantifies the high automation rates (50-90%) its customers achieve.
The Future of AI Agents | Jesse Zhang Interview
This source offers an early pricing indicator for Decagon, noting a potential customer's willingness-to-pay was in the low-to-mid six-figure range annually.
Related questions
What are Decagon's specific product capabilities and features beyond handling conversations?
→What is Decagon's current ARR and how does its growth rate compare to Sierra's?
→How does the total cost of ownership compare between Decagon's per-conversation model and Sierra's outcome-based model for a typical enterprise?
→Which specific large enterprises are using Decagon and how does their customer profile compare to Sierra's?
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