Comparison
All three build an AI chatbot from your content. Two things set Denser apart: every answer is cited to its source, and a single chatbot holds your whole knowledge base while staying accurate, powered by the open-source Denser Retriever.
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Why teams switch to Denser
Denser links each answer to its exact source, so your team and customers can verify it. Neither Chatbase nor Wonderchat supports citations, so there is no built-in way to check what they say.
One Denser chatbot holds up to 5 GB, over 100× Chatbase’s 40 MB cap and far beyond Wonderchat’s ~100 pages. Enterprise scales to 50 GB, with accuracy intact.
| Feature | Denser.ai | Chatbase | Wonderchat |
|---|---|---|---|
| Source citations | Every answer cited to its exact source | Not supported | Not supported |
| Content per chatbot | Up to 10,000 pages / 5 GB — 100,000 pages / 50 GB on Enterprise | Up to 40 MB per chatbot | Up to 100 webpages or 500K characters |
| Accuracy at scale | Holds across hundreds of thousands of pages | Can degrade as content grows | Capped by a small content limit |
| Retrieval technology | Open-source Denser Retriever: keyword + vector search + ML reranking | Standard vector search | Not publicly disclosed |
| Data sources | Website crawl, PDFs, and docs | Uploaded files and website | PDFs, URLs, Zendesk, past tickets |
| Best for | Accurate, cited answers at scale | Simple Q&A bots | Support-ticket automation |
Why Denser is more accurate
Denser answers are retrieved by the Denser Retriever, our open-source (MIT) retrieval engine that combines keyword search, vector search, and ML reranking. On industry benchmarks (MTEB), this hybrid approach beats standard vector-search baselines, so answers stay accurate even across hundreds of thousands of pages, and every one is cited to its source.
Explore Denser Retriever on GitHubNo. Neither Chatbase nor Wonderchat cites the source of an answer, so there is no built-in way to verify what they say. Denser cites every answer to its exact source passage, which reduces hallucinations and is essential for support, compliance, and regulated industries.
A Denser chatbot indexes up to 10,000 pages or 5 GB on standard plans, and up to 100,000 pages or 50 GB on Enterprise. Chatbase indexes up to 40 MB per chatbot, and Wonderchat up to 100 webpages or 500K characters. Denser holds over 100 times more content than Chatbase per chatbot.
Denser retrieves answers with the open-source Denser Retriever, a hybrid of keyword search, vector search, and an XGBoost reranker that beats standard vector-search baselines on industry benchmarks (MTEB). That accuracy holds even across hundreds of thousands of pages, where simple vector search tends to degrade.
Yes, especially if cited answers and scale matter to you. Denser cites every answer, holds far more content per chatbot, and stays accurate as your knowledge base grows.
On your website as a widget or inline frame, in Slack and WhatsApp, through WordPress and Shopify, or anywhere via the REST API and TypeScript and Python SDKs.
Build a chatbot trained on your own content and watch it cite every answer. Free to start, no code required.
