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.

The text "τ³-Bench" on a blurry, grainy background of green and brown.

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.

2026年3月18日

White text "Building in Spain" on a blurred, grainy red and cream background

All about the agent: Sierra launches in Spain

Sierra is already working with a number of the biggest businesses in Spain to build better, more human experiences with AI. We’re excited to build deeper partnerships as we open our office in Madrid.

2026年3月12日

White text "Resilience without compromise" on a blurry, grainy background with vertical streaks of pink, orange, and dark colors.

Preserving agent behavior while serving LLMs reliably

Keeping an AI agent online isn’t enough — its behavior must remain consistent under provider stress. Here’s how we built the infrastructure to make that possible.

2026年2月13日

Year two in review

2026年2月6日

Text: "Expert Answers" on a blurry, grainy peach and blue background.

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.

2026年1月22日

Sierra and Stellarus: Advancing a new model for AI-powered healthcare member experience

Sierra is partnering with Stellarus to help health plans like Blue Shield of California deploy AI agents.

2026年1月12日

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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.

2025年12月18日

Building in France

Sierra is expanding to France, where we'll help leading companies—from luxury houses to aerospace innovators—deliver exceptional customer experiences with AI.

2025年12月15日

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.

2025年12月9日

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