Sierra ブログ

2026年3月27日

Sierra、日本発のAI企業「OPERA TECH」を買収

本日、Sierraは東京を拠点とするエンタープライズAI企業、株式会社OPERA TECHを買収したことを発表いたします。

Text: Sierra acquires Opera Tech in Japan.

2025年11月5日

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.

2026年3月25日

Agents as a Service

Sierra is reimagining software for the agent era—where you simply describe the outcome, and intelligent agents build, execute, and continuously improve the work for you. Meet Ghostwriter, the agent that creates and optimizes other agents, turning your ideas into production-ready customer experiences without clicks, code, or complexity.

2026年2月6日

Year two in review

Sierra is heading into year three with over $150M in ARR, powered by rapid adoption from some of the world’s largest companies. The growth reflects a simple idea: when AI is built around real jobs to be done (not experiments), even the biggest enterprises can see meaningful impact fast.

White text "Year two" on a grainy background with diagonal orange, yellow, and blue color gradients.

2025年11月5日

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.

A more reliable inference layer for foundation models

Foundation models are still less reliable than traditional web services, with more downtime and response times measured in seconds, not milliseconds. And as adoption grows, they’re accessed through a burgeoning ecosystem of providers and applications, which have similar functionality but different levels of reliability. Last year, we turned this bug into a feature—developing an adaptive routing client that dynamically selects providers to maximize uptime, minimize latency, and improve the overall experience.

2025年6月26日

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.

2025年6月17日

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.

2025年6月17日

Five ways to use AI agents: Healthcare

In the year since Sierra’s launch, we’ve seen how AI can help deliver better, more human care while also reducing costs for the industry.

2025年6月16日

𝜏²-bench: benchmarking agents in collaborative real-world scenarios

𝜏²-bench challenges AI agents not just to reason and act, but to coordinate, guide, and assist a user in achieving a shared objective. This leap from solo operation to co-ownership of a task pushes agents into a much more demanding space. And, critically, it reflects the kinds of tasks AI agents are increasingly being asked to perform in the real world.

2025年6月10日

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.

2025年5月22日

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.

2025年5月21日

Sierra expands to New York

We’re excited to share that Sierra is opening a New York office, and we’re hiring across agent development and sales.

2025年5月7日

Change agents: Minted

Since we first started working together last year, AI has become central to Minted’s long-term innovation strategy—with information from AI conversations helping to inform their marketing, engineering, and product teams, as well as solving real customer needs with care and creativity.

2025年4月24日

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