Your docs. Real answers.
Upload documents, ask anything, and get responses backed by citations — not guesses.
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An AI that reads your documents.
Actually reads them.
Other tools skim a few pages and fill in the gaps with guesses. Silas processes your entire document — every paragraph, table, and figure — so nothing gets missed.
Upload everything. It only gets smarter.
Most tools break down after 20 files. Silas handles thousands without losing accuracy. The more you upload, the more it has to work with.
Upload documents
PDF, DOCX, PPTX, HTML, MD, TXT — up to 20MB each
Search figures, diagrams, and tables.
Ask "show me the architecture diagram" and see the actual figure from your PDF — with a citation. Not just text. The images, charts, and tables too.
Show me the system architecture diagram from the Q3 spec.
I found the architecture diagram you're looking for:
Figure 3: Core Pipeline Architecture
Every answer has a source. Or it says so.
Every answer shows exactly where it came from — down to the paragraph. And if it can't find something in your documents, it tells you instead of making things up.
The Q3 revenue grew by 23% compared to the previous quarter.[1]
I couldn't find any mention of the Q4 marketing budget in your uploaded documents.
One question. Every source.
Google Drive, Microsoft 365, Canvas, and your uploads — searched together in one place. Stop digging through tabs and folders.
Project_Alpha_Spec.docx
...the new architecture relies heavily on the hybrid pipeline...
Weekly Sync Notes
...discussed the pipeline requirements from the alpha spec...
CS 101 - Lecture 4
...introduction to search algorithms and retrieval systems...
Upload. Ask. Verify.
Every answer shows you exactly how it was found — which documents were searched, what matched, and why. No black boxes.
Upload your documents
Drop in your PDFs, Word docs, images, or presentations. Silas reads them cover to cover — including tables, figures, and footnotes — so you don't have to.

Ask in plain English
Ask any question. Silas searches across all your documents — combining meaning and keywords — to find the exact right information, not just a rough match.
Get answers you can trust
Every answer comes with sources you can click to verify. And if the answer isn't in your documents, Silas tells you — instead of making something up.
Ask anything. Get cited answers.
Upload your documents once. Ask questions in plain English. Get instant answers with sources you can verify.
Everything connected.
Silas connects to the tools you already use, so all your files and knowledge live in one searchable place.
CopilotLoved by knowledge workers
See how professionals use Silas to supercharge their productivity
"I finally have all my research papers, notes, and articles in one searchable place. It's like having a personal research assistant."
Dr. Sarah Chen
Research Scientist
"As a consultant, I deal with hundreds of documents. Silas helps me find relevant info in seconds instead of hours."
Marcus Rodriguez
Management Consultant
"The citation feature is incredible. Every answer links back to my actual documents. No more AI hallucinations."
Emily Watson
PhD Candidate
"I use it for my personal knowledge base—book notes, articles, ideas. It's become essential to my workflow."
James Park
Product Manager
Simple, transparent pricing
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Personal
Perfect for trying things out
- 10 documents
- Claude Haiku AI model
- 50 queries per day
- Basic document search
- PDF & image support
- Community support
Pro
For power users and researchers
- Everything in Personal, plus:
- 5000 documents
- All AI models (Sonnet, Opus, Grok)
- 500 queries per day
- Advanced RAG with reranking
- Google Drive & OneDrive sync
- Priority support
Enterprise
For teams and organizations
- Everything in Pro, plus:
- Unlimited documents
- Unlimited queries
- SSO authentication
- LMS integrations (Canvas, Classroom)
- Full audit logging & compliance
- Dedicated success manager
100MB • 10 Docs • Claude Haiku • 50 Queries/Day
Frequently Asked Questions
Everything you need to know about Silas
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Your knowledge, actually searchable.
Upload your first document. Ask a question. See the citation. The “aha moment” takes less than a minute.
Try it now for freeFree Tier: 100MB • 10 Docs • Claude Haiku