Guardian Taps Sierra for AI Customer Service

Nov 5, 2026
Guardian will use Sierra's AI platform for about 1 million annual dental benefit verification calls, payment processing, and claim status inquiries.

Guardian Life Insurance Company announced in a press release a multiyear partnership with Sierra to use AI across customer service interactions.

Guardian will apply Sierra's platform to high volume requests, including about 1 million dental benefit verification calls each year. The technology will also handle payment processing and claim status inquiries, giving customers access to answers at any time of day.

Sierra CEO and co-founder Bret Taylor said customers should not have to sit on hold to check on a claim or confirm dental benefits. Guardian chief strategy officer Michael Prestileo said the partnership lets its staff focus on moments that need human judgment. Over the past year Guardian has also partnered with HCLTech and with Avantos, an AI operating system for financial services firms.

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