Sierra launches Horizon, agents that work toward multi-week business goals and are paid per outcome

Sierra/Sierra Agent OS

Horizon extends Sierra's agents from single conversations to long jobs such as loan origination or health-care authorizations, running inbound and outbound contacts over weeks. Customers pay for completed business outcomes rather than tokens.

• Combines a context engine that links many interactions with long-range planning.
• Example: a US health-care provider uses it to schedule specialist referrals.
• Sierra calls it its biggest platform expansion since Agent OS launched in 2024.