21st Agents SDK
Accelerate AI-powered product development with open-source tools and managed infrastructure.
VS
Glean
Work AI that Works | Agents, Assistant & Search
Detailed comparison
Criteria
21st Agents SDK
Glean
Pricing
Freemium
Enterprise
Plans & pricing
—
Enterprise: Custom
Free trial
—
No
Audience
B2B
b2b
Platforms
—
Web
API
—
No
Open Source
—
Proprietary
Integrations
—
Slack
Categories
AI Agents, Dev Tools
AI Agents, Productivity
Popularity
Moderate
Very High
Description
The 21st Agents SDK provides open-source UI components and developer tools for building and deploying AI agents faster. It's designed for frontend eng...
Glean is the Work AI platform connected to your enterprise's data. Find, create, and automate anything. Explore what Work AI can do for you!
Pricing
21st Agents SDK
Freemium
Glean
Enterprise
Plans & pricing
21st Agents SDK
—
Glean
Enterprise: Custom
Free trial
21st Agents SDK
—
Glean
No
Audience
21st Agents SDK
B2B
Glean
b2b
Platforms
21st Agents SDK
—
Glean
Web
API
21st Agents SDK
—
Glean
No
Open Source
21st Agents SDK
—
Glean
Proprietary
Integrations
21st Agents SDK
—
Glean
Slack
Categories
21st Agents SDK
AI Agents, Dev Tools
Glean
AI Agents, Productivity
Popularity
21st Agents SDK
Moderate
Glean
Very High
Description
21st Agents SDK
The 21st Agents SDK provides open-source UI components and developer tools for building and deploying AI agents faster. It's designed for frontend eng...
Glean
Glean is the Work AI platform connected to your enterprise's data. Find, create, and automate anything. Explore what Work AI can do for you!
Features
21st Agents SDK
Built-in UI and chat history
Spend limits and sandbox execution with isolated VMs
Observability including session replay and traces
Supports Claude and OpenAI models with token-by-token streaming
Glean
Enterprise AI Search
Personal AI Assistant
AI Agentic Engine
Enterprise Graph & Data Connectors
Hybrid Search
Seamless Workplace Integrations (e.g., Slack, Microsoft)
Key differentiators
21st Agents SDK
Glean
- Work AI platform for enterprise data
- Enterprise AI Search & Personal Assistant
- AI Agentic Engine for automation
Other comparisons
FAQ: 21st Agents SDK vs Glean
21st Agents SDK: Accelerate AI-powered product development with open-source tools and managed infrastructure.. Glean: Work AI that Works | Agents, Assistant & Search. Both tools take different approaches to address similar needs.
21st Agents SDK offers a freemium plan, while Glean is a contact tool.
The best choice between 21st Agents SDK and Glean depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
21st Agents SDK is primarily designed for businesses and professionals, while Glean is built for individuals.
21st Agents SDK offers: Built-in UI and chat history, Spend limits and sandbox execution with isolated VMs, Observability including session replay and traces, Supports Claude and OpenAI models with token-by-token streaming. Glean offers: Enterprise AI Search, Personal AI Assistant, AI Agentic Engine, Enterprise Graph & Data Connectors.
Based on our data, Glean currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.