Channels | Sierra

Channels

Build once, deploy everywhere

Voice

Delight your customers across inbound and outbound calls.

Deliver low-latency voice interactions that handle interruptions, background noise, accents, and detect customer sentiment in real-time to adapt tone and pace while remaining calm and helpful.

Replace rigid IVR menus with an empathetic voice agent that understands customer context, leverages memory for personalized experiences, and delivers accurate, real-time resolutions while representing your brand.

Use Voice Personas to design how your agent sounds, speaks, and connects, powered by a constellation of models tuned across 59 languages.

Messaging

Deliver consistently better experiences across messaging platforms.

Power chat conversations across your website, mobile app, WhatsApp, Apple Business Chat, and SMS.

Reach out with personalized messages and handle end-to-end conversations.

Bring conversations to life with images and videos to better showcase products, illustrate troubleshooting steps, and more.

“The deployment of agentic AI across chat and voice is about delivering real value — more personalized experiences, greater convenience and faster, more responsive service. Our AI agents are designed to understand local expressions and even Singlish, reflecting our roots as a homegrown company serving a diverse nation.”

Mr Ng Tian Chong
Chief Executive Officer, Singtel Singapore
Full story

Email

Automate your inbox with AI that responds instantly and accurately.

Autonomously respond to customer emails, reducing response times and freeing up your support team.

Your agent uses CRM data and real-time account context to deliver personalized, consistent, and trustworthy answers.

Agents understand the nuances of email communication and craft highly branded and helpful responses delivered at the speed of chat.

Live Assist

Bring the power of your AI agent to every customer care team member.

Suggest real-time responses, drawing on operating procedures and knowledge bases your care representatives are trained on.

Enable care representatives to take immediate action using the information from the conversation and the same tools that power your AI agent.

Every interaction feeds back into your system, continuously improving the performance of both your AI agent and your care representatives.

ChatGPT

Publish your agent to ChatGPT, unifying your first-party and third-party consumer channels.

Create a single Sierra agent that powers both your first-party experiences and your ChatGPT app. Choose exactly which journeys, data, and capabilities you expose to each channel.

Universal web attachments allow for interactivity across surfaces—maps, fillable forms, detailed charts, and more.

Make your agent available on ChatGPT with the push of a button or via CI/CD. Sierra agents are natively compatible with ChatGPT Apps via Model Context Protocol (MCP).

Introducing Voice Personas

What an agent does and how it expresses itself are two different things. Today, we’re launching Voice Personas so you can design both.

When we launched Sierra two and a half years ago, the fact that an AI agent could have a phone call was remarkable. Now, our customers have built agents that are handling billions of customer interactions and driving billions of dollars of revenue every year.

Read More

Trust & reliability

Deploy with confidence knowing Sierra maintains the highest commitment to trust, security, and compliance. Your data is only used as you instruct, and we use industry-standard best practices to ensure its security.

Agent Data Platform

Transform conversations into relationships with memory, recommendations, and proactive engagement.

Discover what Sierra can do for you

Find out how Sierra can help you deliver better outcomes with AI.