Kelu vs Duckie
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Duckie is an agentic platform for support teams: you build agents that resolve tickets, investigate issues and automate the workflows behind support, and you can self-host it. Kelu is a packaged AI knowledge assistant: you connect your sources and get cited answers in a docs widget, Slack and Teams bots, an MCP server, a support form deflector and your helpdesk.
Choose Duckie if your support team wants to build its own agents that investigate issues and run multi-step workflows across your tools, or needs to self-host. Choose Kelu if you want cited answers from your docs working out of the box, with public pricing, a free plan, a docs widget with Cmd+K search and a support form deflector.
Feature comparison
Duckie details come from Duckie's own website and docs, listed under the table.
Where Kelu focuses differently
Packaged, not built
Duckie gives support teams the parts to build their own agents. Kelu works out of the box: connect a docs site, and retrieval, citations and the abstention gate are already tuned. There are no flows or agents to design before the first answer.
Docs-native retrieval
Kelu's ingest pipeline is built for docs: HTML to markdown, code-block extraction, heading-aware chunking and heading detection in PDFs. Hybrid search, reranking and abstention sit on top, so a customer-facing widget answers only from your sources.
Transparent pricing and a free tier
Kelu publishes its pricing and offers a free plan without a credit card. Duckie does not publish pricing; you book a demo to get a number.
Deflection before the ticket
Kelu's support form deflector answers a question at the moment someone submits your form; if the answer helps, no ticket is filed. The same knowledge base then answers the tickets that do arrive, in Zendesk, Intercom, Freshdesk, Front or Linear.
Got questions?
Frequently asked questions
Which is better for automating support workflows?
Duckie is built for it: its agents investigate issues and call tools across your stack, including any MCP server. Kelu focuses on answering: it replies to or drafts tickets from your knowledge base, tags the ones it can't answer with your escalation tag, and offers optional auto-triage tags.
Can I use Kelu for customer-facing support?
Yes, that's the primary use case. Put the widget on your docs or product site, add a Slack or Teams bot, use the form deflector to answer questions before they become tickets, and let Support Ticket AI answer the tickets that still arrive.
How does pricing compare?
Kelu publishes pricing on the site: Free (100 questions/mo, 1 knowledge base), Pro $99/mo or $79/mo billed yearly (1,000 questions, 5 knowledge bases), Enterprise custom. Duckie doesn't publish pricing; you book a demo to get a number.
Does Kelu support MCP?
Yes. Every knowledge base has an MCP endpoint with search and ask tools, so Cursor, Claude Desktop, ChatGPT with MCP, Windsurf and other MCP clients can query it.
How is answer quality measured?
Before go-live, simulations show each answer next to your agent's reply, with a confidence score you review. After it, users rate answers with thumbs feedback, and analytics show feedback ratios and unanswered questions. When your sources don't cover a question, the assistant abstains instead of guessing.
See for yourself
Connect your docs and get your first AI-powered answer in under 5 minutes. No credit card required.
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