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.

Text: Sierra acquires Takeoff, over an abstract red background

We’re excited to share that Sierra is acquiring Takeoff

Since the beginning of this year, Takeoff has gone from $0 in ARR to nearly 8 figures of revenue as of earlier this month. We’re energized to have the opportunity to accelerate and scale our platform with Sierra’s partnership and trust around the world.

2026年7月23日

"Building Sierra's MCP Gateway" on a blurred blue and brown background

Building Sierra’s MCP Gateway: An engineering iceberg

Sharing the biggest lessons we learned building Sierra’s MCP Gateway — and what it looks like to build software in an AI-first engineering organization.

2026年7月22日

The word "Horizon" on a blurred blue background

The next Horizon in agents

Horizon agents orchestrate outbound and inbound interactions over days or weeks — not just single conversations. A context engine and long-horizon planning turn every interaction into a compounding advantage, so your agents get smarter as your customer relationships deepen. It’s Sierra’s outcomes-based model at scale: you pay for results, not tokens.

2026年7月16日

"Pinecone" on a blurred green and yellow background

Pinecone: Harnessing the wisdom of the workforce

As frontier models become more capable, companies are increasingly asking themselves the same question: What’s our moat? We believe a large part of the answer lies in context.

2026年7月15日

Our partnership with SoftBank Corp. on a blurred red background

ソフトバンク株式会社とのパートナーシップを発表

この度、日本を代表する通信・IT企業であるソフトバンク株式会社とのパートナーシップを発表できることを、大変嬉しく思います。

2026年7月14日

"AI-pilling our company" on a blurred blue and yellow background

AI-pilling our company: lessons learned

Our AI acceleration team has been developing agents for employees across every department at Sierra. Here’s what they built — and lessons learned along the way.

2026年7月9日

A new kind of builder" text on a dark blue and purple gradient background with a subtle speckled texture.

Takeaways from our Ghostwriter Hackathon

Last week, we hosted our first Ghostwriter Hackathon with 30 builders from 17 of the world’s largest companies. Here’s what we learned about who builds best in the age of AI.

2026年7月1日

Let your customers shape your agents

Experiments in Agent Studio lets teams run A/B tests on agent changes, measuring outcomes like resolution rate and churn reduction to see what actually improves the customer experience. Built-in statistical confidence and gradual rollout controls make it easy to validate a winning variant and ship it with proof, not guesswork.

2026年6月30日

How customer teams became agent builders

The people closest to your customers have the best context for improving the experience. Now they’re the ones building the agents.

2026年6月15日

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