The Sierra blog

November 5, 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.

October 23, 2025

Publish your agent to ChatGPT

Reach hundreds of millions of ChatGPT users with a single click — bringing your Sierra-built experiences into ChatGPT while maintaining full control and brand integrity.

October 6, 2025

Voice turns one

One year after launching voice, Sierra is powering hundreds of millions of conversations — showing how natural conversation is fast becoming the most powerful customer interface.

Meet the Voice Sommelier

Best practices for finding the right voice for your brand.

September 17, 2025

Voice Sims: test agents in real world conditions before they talk to customers

Sierra's Voice Sims is a pioneering feature that tests voice agents in real world conditions before they talk to a single customer.

September 11, 2025

Simulations: the secret behind every great agent

Sierra’s platform, Agent OS, enables you to create simulated conversations between agents and mock personas ensure reliability at scale. They are a new kind of testing, for a new kind of software.

August 19, 2025

Sierra is now ISO 42001 and ISO 27001 certified

We’re excited to share that Sierra is now certified by an accredited certification body to both ISO 27001 and ISO 42001.

July 8, 2025

The challenge with rolling your own agent

Short “time to demo” masks the challenge of building agents that can reliably take action without supervision, safely represent a brand, and operate at the scale needed to handle millions of customer interactions a year.

June 17, 2025

The future is build with, not build versus buy

Sierra’s platform gives businesses the freedom to build as much or as little of their agent as they choose—from our Agent OS, which handles all the under the hood complexity, while giving brands complete control over the parts that are unique to their business, to our expert team of engineers and product managers, which help launch agents quickly, and ensure they improve over time.

June 17, 2025

Building more human voice experiences

Here are three lessons we’ve learned building great voice experiences with our customers, for their customers. And what’s so interesting is that it’s many little things like these—not one big thing—that’s helped create a better, more human voice experience.

May 22, 2025

Serving customer experience and engineering teams—all from one platform

Sierra’s Agent OS is the only platform that supports both no code and programmatic agent development. Our unique approach enables companies to mix and match—choosing the right approach for their business needs, and scaling their agent development as those needs evolve.

May 21, 2025

Same platform, different personalities

Your AI agent is an extension of your brand’s voice, values, and customer experience. As Harmony, Duncan Smuthers, and Barbra all show, Sierra can help your business build better, more human customer experiences with AI.

March 20, 2025

See what Sierra can do for you

Find out how Sierra can help your business build better, more human customer experiences with AI.

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