Sierra vs Z.ai (Zhipu AI)

Empower customer experience teams to build and manage agents—without writing a line of code. Set up customer journeys, configure knowledge, and define brand guidelines effortlessly.

Create consistent experiences across voice, chat, email, and more in 58 languages, available 24/7/365.

Ask any question in natural language, and Explorer will use analytics and sample customer conversations to provide answers and actionable recommendations.

Build or modify your agent simply by describing how you want your agent to behave. Prompt workflows, systems integrations, guardrails, tone, and style.

Long-horizon agents that get more intelligent with every interaction.

Measure what matters, test what works, and understand every agent decision with analytics, experimentation, and observability built for continuous improvement.

Platform for building and running customer-facing agents that handle support conversations over chat and voice.

Supplies persistent customer context and behavioral signals to Sierra's conversational agents.

AI research assistant built on Zhipu's GLM models that performs academic and scholar search, AI-assisted paper reading, literature-review generation with citations, and scholarly question answering.

Deep-research assistant that searches and scrapes source websites to produce structured research reports and can emit the result as a slide deck or web page, with browser automation and video summarisation.

Assistant built on the GLM models, covering chat, web search and document work.

Zhipu's Chinese-market consumer AI assistant and agent built on the GLM model family, covering dialogue, writing, coding, translation and multimodal input.

Locally installed AI agent application with 50+ preconfigured skills that performs document generation, data analysis, browser automation and messaging-app collaboration, running on Windows, macOS, iOS and Android and defaulting to the GLM-5.3 model.

Flat-rate monthly subscription providing GLM model access inside third-party coding agents and IDEs such as Claude Code, Codex, Cline, OpenCode, Cursor and Windsurf, billed separately from Z.ai's per-token API.