What is Cassidy?

Content last verified May 4, 2026 · by the AI Tools Set Research Team

Cassidy builds AI assistants and workflow automations grounded in your company's own documents, wikis, and tools, so answers stay accurate and on-brand. Teams connect their knowledge sources, then deploy assistants and automations that draft, answer, and act using that context.

It supports multiple underlying models so you can pick the best one per task, and it deploys where teams work, including the browser and Slack.

Key Features of Cassidy

Knowledge grounding: Connect docs, sites, and wikis for accurate answers.
Workflow automations: Trigger AI actions across your tools.
Multi-model: Choose the best model for each task.
Deploy anywhere: Browser, Slack, and web app access.

Use Cases for Cassidy

Answer internal questions
Automate support drafts
Standardise team AI use
Ground AI in company data
Draft on-brand content

Pros & Cons

Pros

✓

Strong grounding accuracy

✓

Fast deployment

✓

Model flexibility

✓

Good team controls

Cons

✗

Team pricing

✗

Quality depends on your content

Pricing

Free

$0 /mo

✓Limited messages

✓Core assistants

✓Basic knowledge