Shortlist by what you need
Start here if you know why you are leaving Cassidy.
Want the closest match?
Stack AIMost similar to Cassidy in what it does, its category and its price.
Visit (opens Stack AI in a new tab)Need a free plan?
SliteHas a free plan, rated 4.4 out of 5.
Visit (opens Slite in a new tab)Want the lowest price?
LangdockFrom EUR 20/mo, the lowest starting price here.
Visit (opens Langdock in a new tab)Want the best rated?
LindyRated 4.5 out of 5 in our review, against 4.2 for Cassidy.
Visit (opens Lindy in a new tab)
At a glance
Green means better than Cassidy, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 CassidyBaseline | 4.2 | Free | Yes | Turns a company's internal knowledge into a Slack-native assistant | |
| Stack AI | 4.4+0.2 | Free | Yes | Internal AI tools for HR, legal, and ops, no engineers required | vs Cassidy |
| Slite | 4.4+0.2 | $8/mo | Yes | Ask questions and get answers sourced from your own team docs | vs Cassidy |
| Langdock | 4.3+0.1 | $20/mo | No | GDPR-compliant AI workspace that puts chat, custom agents, and workflow automation behind one enterprise login. | vs Cassidy |
 Microsoft Copilot Studio | 4.2Same | $200/mo | No | Microsoft's low-code builder for custom Teams and 365 copilots | vs Cassidy |
 Botpress | 4.3+0.1 | $89/mo | Yes | A visual flow builder for chatbots, with open-source roots | vs Cassidy |
 Vertex AI Agent Builder | 4.2Same | Not listed | No | Google Cloud's full agent platform, grounded in Search and Gemini | vs Cassidy |
| Lindy | 4.5+0.3 | $29.99/mo | No | Build a named AI employee instead of an abstract workflow | vs Cassidy |
 MindStudio | 4.4+0.2 | $20/mo | Yes | Build an AI agent, then publish and monetize it | vs Cassidy |
The alternatives in detail
In order of how closely each one matches Cassidy.
Stack AI
4.4Free
vs Cassidy+0.2
Internal AI tools for HR, legal, and ops, no engineers required.
- No-code builder for internal AI tools and assistants
- Retrieval-augmented generation over a team's own documents
- Built for HR, legal, and operations use cases specifically
Removes the engineering bottleneck for internal AI tool requests
Best suited to internal tools, less to customer-facing products
Slite
4.4$8/mo
vs Cassidy+0.2
Ask questions and get answers sourced from your own team docs.
- Ask feature answering questions from existing team documentation
- Team wiki and knowledge base creation
- Free tier for small teams
Ask feature saves real time versus manually searching documentation
More members and features require a paid plan
Langdock
4.3$20/mo
vs Cassidy+0.1
GDPR-compliant AI workspace that puts chat, custom agents, and workflow automation behind one enterprise login.
- Shared chat interface across multiple underlying LLMs
- Custom agent builder for department- or task-specific assistants
- Workflow automation for multi-step, scheduled processes
Compliance certifications reduce procurement friction for regulated industries
No permanent free plan; the trial runs out after 7 days
Microsoft Copilot Studio
4.2$200/mo
vs CassidySame
Microsoft's low-code builder for custom Teams and 365 copilots.
- Low-code conversational agent builder
- Deep integration with Teams, SharePoint, and Dynamics 365
- Grounding in Dataverse records and internal APIs
Tight integration removes separate identity and hosting setup for Microsoft shops
High price point reflects enterprise-only positioning
Botpress
4.3$89/mo
vs Cassidy+0.1
A visual flow builder for chatbots, with open-source roots.
- Visual flow builder for structured conversation design
- LLM integration for open-ended generative responses
- Multi-channel deployment (web, WhatsApp, Slack, and more)
Granular flow control suits complex, structured conversation needs
Higher entry price than simpler chatbot builders
Vertex AI Agent Builder
4.2Not listed
vs CassidySame
Google Cloud's full agent platform, grounded in Search and Gemini.
- No-code and code-first agent building paths
- Google Search grounding for current, verifiable answers
- Deep integration with Gemini models
Google Search grounding is a genuinely distinctive capability
No free tier, built for Google Cloud enterprise usage
Lindy
4.5$29.99/mo
vs Cassidy+0.3
Build a named AI employee instead of an abstract workflow.
- Pre-built AI employee templates for common business roles
- Email, scheduling, and call-handling automation
- Multiple Lindys can collaborate on handoffs
AI-employee framing is intuitive for delegating specific jobs
Higher starting price than general-purpose workflow builders
MindStudio
4.4$20/mo
vs Cassidy+0.2
Build an AI agent, then publish and monetize it.
- No-code AI agent and workflow builder
- Marketplace for publishing and monetizing finished agents
- Testing and iteration tools before public release
Marketplace option is a genuine point of difference from internal-only builders
Marketplace monetization matters less for purely internal automation needs
FAQ
Questions people ask
Is Cassidy free?
Cassidy has a free plan.
What is the best free alternative to Cassidy?
Stack AI is the highest-rated alternative here with a free plan (4.4 out of 5). Other free options: Slite, MindStudio, Botpress.
What is the cheapest alternative to Cassidy?
Among paid plans, Slite has the lowest starting price (from $8/mo). If you need it free, start with Stack AI.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.