The Sierra blog - Product | Sierra

𝜏³-Bench: Advancing agent benchmarking to knowledge and voice
𝜏³-Bench is here. We've expanded agent evaluation to two new frontiers: knowledge retrieval and voice.
March 18, 2026

Expert Answers: Turn everyday support conversations into compounding knowledge
Expert Answers automatically generates and improves knowledge articles from resolved customer conversations, helping your AI agent deliver more accurate, up-to-date responses over time.
January 22, 2026

Workspaces: move fast without breaking things
Workspaces bring multi-player mode to agent development—letting teams build in parallel across code and no-code, test thoroughly, merge safely, and release with full control.
December 18, 2025

Visual Attachments: A new dimension for chat agents
Chatting with an agent shouldn’t feel like decoding a wall of text. Visual attachments make multi-step conversations easier to navigate, giving people a smarter, more intuitive way to move through a flow.
December 9, 2025

SiriusXM and Sierra announce a deeper collaboration with the launch of Agent Data Platform
SiriusXM will be the first business to adopt Sierra’s groundbreaking new Agent Data Platform.
December 4, 2025

Constellation of models: the architecture powering Sierra's agents
Agents built on Sierra are assembled from 15+ purpose-built models working in concert, so they can handle complex tasks with speed, precision, and on-brand execution.
December 3, 2025

Improving voice performance with post-training
Post-training helps our customers' voice agents achieve shorter, clearer, and more human-like conversations.
November 12, 2025

Sierra Agent OS 2.0: from answers to memory and action
At Sierra Summit, we unveiled the future of AI agents: a single agent that works across every channel, learns from every interaction, and builds real customer relationships. With eight new products, including Agent Studio 2.0 and the Agent Data Platform, Sierra is turning the promise of AI-powered customer experience into reality.
November 5, 2025

Introducing Agent Data Platform
Sierra’s first-of-its-kind Agent Data Platform (ADP) gives agents memory, context, and intelligence — turning every interaction into a human, personalized experience. Powered by Agent OS, ADP helps companies move from answering questions to anticipating needs.
November 5, 2025