Sierra launched a new version of Ghostwriter that moves the agent-building tool from a prompted copilot inside Sierra's application to a proactive teammate that joins Slack and Teams channels, the com…
Sierra announced that its agent-building platform, including Ghostwriter and Agent Studio, gives enterprises full visibility and ownership of AI agents through traces, Explorer, Monitors, and Pulse, w…
Sierra announced it has achieved AIUC-1 certification for its AI agents following an independent audit by Schellman and testing by the Artificial Intelligence Underwriting Company (AIUC). The AIUC-1 s…
Sierra AI open-sourced hyper-𝜏-bench, a new benchmark measuring how well AI models can build customer-service agents from scratch, and found that its best configuration, Claude Opus 5 running in Claud…
Sierra, an AI customer service company, published an operating and rollout guide for deploying AI in call centers, detailing use cases across the contact lifecycle and emphasizing the need to treat de…
Voice AI combines speech processing with conversational intelligence, and an enterprise AI voice agent can use customer context and business systems to complete work during a call, according to an ent…
Sierra, the customer-facing AI platform, announced it is opening an office in Seoul, South Korea, to serve the country's complex businesses. The company, which partners with one in three of the world'…
Sierra, a platform for building AI agents, has introduced release governance features including Agent Checks, merge approval workflows, and split traffic releases to help large companies safely deploy…
Sierra, an AI company, announced the opening of an office in Munich to serve companies in Germany, Austria, and Switzerland, citing the region's highly regulated industries. The company claims its cus…
Sierra, an AI platform company, announced that AI agents built on its platform can now navigate interactive voice response (IVR) systems out of the box, increasing agent success rates by almost 50% to…
Sierra launched Voice Personas, a feature that lets AI agents adopt distinct brand voices and personalities across languages and markets, separating an agent's function from its expression. The compan…
Sierra, an AI customer experience company, launched Context Engine, a product that powers long-running Horizon agents to turn customer relationships into competitive advantage by learning which contex…
Plaid and Sierra have partnered to enable AI agents to access bank account data through Plaid Link, allowing agents to complete long-running financial workflows such as loan applications and insurance…
Sierra built Agency, a secure and scalable sandbox infrastructure for AI agents, after finding that off-the-shelf sandbox providers imposed hard limits on resources, runtime, and concurrency that woul…
Sierra is acquiring Takeoff, an AI agent runtime startup that grew from $0 to nearly 8 figures in annual recurring revenue within 14 months. The combined company will build a new platform called Horiz…
Sierra built a single MCP Gateway to connect AI agents to internal tools like Slack, GitHub, and Salesforce, reducing coordination overhead and avoiding duplicate integrations. The engineering team ad…
Sierra announced Horizon, a platform that enables AI agents to pursue long-horizon goals such as originating loans or scheduling healthcare referrals over days or weeks. The platform, built on Sierra'…
Sierra has built Pinecone, an internal cloud-based agent that captures and scales employee workflows across the company, turning individual improvements into organizational knowledge. The system provi…
Sierra announced a partnership with SoftBank Corp., a Japan-based telecommunications and IT operator, to deliver its conversational AI platform to Japanese enterprises. SoftBank will serve as Sierra's…
Sierra's AI acceleration team collapsed role-specific agents into a single agent called Pinecone, finding that a unified agent handling end-to-end jobs outperformed per-role agents. The company learne…