Velin

Velin is a research and knowledge tool built around retrieval-augmented generation. Rather than trusting a general chatbot's memory, it grounds every answer in the documents you actually upload. You add your sources, Velin processes and organises them, and from that point you can ask questions in plain language and get responses tied back to the exact passages they came from.

The core promise is trust: answers are generated strictly from your files and paired with citations to the original sources, which is what the platform means by 'citations instead of hallucinations'. It also supports vision for charts and images and offers web search grounding, so questions that reach past your library can still be answered sensibly.

Velin is offered as a monthly subscription with three tiers. Starter covers essential capacity for daily research with a 100-file knowledge library, image generations and vision and web grounding. Unlimited removes the library and retrieval caps, while Unlimited Plus adds video RAG for MP4 and YouTube sources plus priority engineering support. The site presents each tier as pay-as-you-go with cancel-anytime flexibility.