Sierra unveils Agent OS models Curie and Fleming at its summit, with the platform handling compliance, voice latency and cost automatically
At its San Francisco summit, Sierra announced two new Agent OS models, Curie and Fleming, alongside Tandem Voice, Persona Studio and Ghostwriter. Curie powers the core orchestration loop of a conversation, deciding which path to follow, which tools to call and what replies customers see; Fleming detects when a caller is another agent, so businesses can handle bots and fraud. Sierra says Agent OS automatically ensures compliance, low-latency voice and a better cost basis, leaving companies to focus on building their own agent.