Free web
Free source (opens in a new tab)
Month
For: Individuals exploring document AI
Limits
- 1 knowledge base
- Up to 20 documents
1 more
- 100 queries per month; 0.25 GB storage
Includes
- API access
- Citations on every answer
API included
Productivity & writingDocumented overviewLast checked Sep 29, 2026
Docubix: Pricing, Features & Best Use Cases
RAG platform: upload documents and get a cited AI assistant through a REST API.
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Our take: Docubix suits developers and SaaS teams who want a cited document chat assistant behind a REST API without building chunking, embeddings and retrieval themselves.
Main limitation: Query volume is capped: 100 per month on Free and 3,000 per month on the $79 Pro plan, with no higher tier published.
Who Docubix fits
Docubix suits developers and SaaS teams who want a cited document chat assistant behind a REST API without building chunking, embeddings and retrieval themselves. Based on the vendor's documentation, not on a hands-on test.
Best for: Founders adding AI chat
Also a good fit for
- Support teams
- Teams building internal assistants
Consider another tool if free plan: 20 documents and 100 queries per month
Or if
- Pro capped at 3,000 queries per month
- Supported formats limited to PDF, DOCX, TXT, Markdown
Docubix pricing and usage limits
Prices checked Sep 29, 2026 on the official US pricing page. Official pricing ↗ Prices and limits change often.
Free access and trial conditions
Free plan at $0 per month
No separate trial; Free plan and Book a demo
Paid plans: what changes as you upgrade
Pro web
$79/mo source (opens in a new tab)
Month
For: Teams shipping AI features to production
Limits
- 10 knowledge bases
- Up to 1,000 documents
1 more
- 3,000 queries per month; 10 GB storage
Includes
- API access
- Citations on every answer
API included
Usage caps, credits and extra costs
Not stated
Not stated
What is Docubix, and how does it work?
Docubix lets users upload PDF, DOCX, TXT or Markdown files and turns them into a chat assistant with cited answers. It handles chunking, embeddings and retrieval. Developers integrate through a REST API, and each knowledge base gets its own index and API key. Analytics show what users ask and which documents are cited.
What you provide and what you get back
You provide
- PDF, DOCX, TXT or Markdown files
- System prompt and retrieval settings
- User questions through the REST API
You get back
- Streaming cited answers
- Search results and conversation history
- Analytics on questions and cited documents
Where you can use it
- Platforms
- Web, API
- Account
- Required
- Formats
- PDF, DOCX, TXT, Markdown
- Free limits
- 1 KB, 20 docs, 100 queries, 0.25 GB
- Pro limits
- 10 KBs, 1,000 docs, 3,000 queries, 10 GB
- API
- REST, key per knowledge base
- Answers
- Streaming with citations
Best use cases for Docubix
Scenarios are worked out by our editors from the documentation; the actual result depends on your input and plan.
Add document chat to a SaaS product
- Who
- Founders adding AI chat
- You provide
- Product docs and API calls from the app
- Expected result
- A cited assistant inside the product
- Plan needed
- Pro for production
- Limitation
- 3,000 queries per month on Pro source (opens in a new tab)
Customer support answers from a help center
- Who
- Support teams
- You provide
- Help center articles as documents
- Expected result
- Cited replies to customer questions
- Plan needed
- Free to test, Pro to run
- Limitation
- Only PDF, DOCX, TXT and Markdown are accepted source (opens in a new tab)
Internal handbook assistant
- Who
- Operations and HR teams
- You provide
- Employee handbook files
- Expected result
- Answers pointing to the exact page or section
- Plan needed
- Free or Pro
- Limitation
- Free allows 20 documents source (opens in a new tab)
Finding documentation gaps
- Who
- Docs owners
- You provide
- Analytics from user questions
- Expected result
- See what is asked and which documents are cited most
- Plan needed
- All plans
- Limitation
- Analytics depth not documented source (opens in a new tab)
Key features and their practical limits
Knowledge bases
Creates a separate assistant, vector index and API key per project Keeps each use case isolated
Document uploads
Accepts PDF, DOCX, TXT and Markdown and handles chunking and embeddings Skips building a pipeline
Citations on every answer
Links each response to the exact document and page or section Lets users verify answers
Streaming responses
Streams tokens as they are generated Makes chat feel instant
REST API
Provides endpoints for chat, history and search Build any interface on top
Docubix pros and cons
Where Docubix is strong
- Free plan at $0 You can prototype before paying documented source (opens in a new tab)
- Citations on all plans Every answer can be checked against sources documented source (opens in a new tab)
- API access on every plan Free users can integrate too documented source (opens in a new tab)
- No ML setup needed No fine-tuning or vector database work documented source (opens in a new tab)
- Per-knowledge-base index and API key Projects stay separated documented source (opens in a new tab)
Limitations to check before paying
- Free plan: 20 documents and 100 queries per month Only enough for a prototype documented source (opens in a new tab)
- Pro capped at 3,000 queries per month Busy products may outgrow it documented source (opens in a new tab)
- Supported formats limited to PDF, DOCX, TXT, Markdown Other formats must be converted documented source (opens in a new tab)
- Account required Cannot use without signing up documented source (opens in a new tab)
- Big jump from $0 to $79 No middle plan exists documented source (opens in a new tab)
How to use Docubix for building a cited document assistant over a REST API
Set up Docubix
- Sign up for a free Docubix account
- Create a knowledge base in the dashboard
- Copy the API key tied to that knowledge base
Example: building a cited document assistant over a REST API
- Upload your PDFs or Markdown files and wait for indexing
- Set a system prompt and pick a model
- Call the /chat endpoint of https://api.docubix.com/api/v1 with the API key
- Stream the answer and render the citations in your app
Review and export the result
- Confirm each answer cites the right document and page
- Review dashboard analytics for unanswered questions
A customer can't log in. What should I tell them?
Docubix API
API access and separate billing
An API is available, included in the plan. REST API at api.docubix.com/api/v1 with /chat and /query endpoints; API key per knowledge base API documentation ↗
Privacy, data use and commercial rights
Summarized from the vendor's current policies; this is not legal advice and a vendor's badge is not an independent audit.
How your inputs and outputs are handled
Stores uploaded documents, prompts, conversations and account data
The policy says customer content is not used to train Docubix's own models
Content remains until deleted by the user; deleted data may stay in backups for a limited period
Commercial use and plan restrictions
Not stated
Not stated
Controls for business users
- Delete documents and knowledge bases
Policies: docubix.com/privacy
Other tools to consider instead of Docubix
"Better suited" is based on documented features and pricing, not on a head-to-head test.
ChatGPT: better suited to
Gemini Notebook (formerly NotebookLM): better suited to
| Alternative | When to choose it | Pricing | Limitation | |
|---|---|---|---|---|
| ChatGPT | — | — | ||
| Gemini Notebook (formerly NotebookLM) | — | — |
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Docubix FAQ
How much does Docubix cost?
Free is $0 per month; Pro is $79 per month with 10 knowledge bases, 1,000 documents and 3,000 queries. source (opens in a new tab)
What file formats can I upload?
PDF, DOCX, TXT and Markdown. source (opens in a new tab)
Do I need to train a model?
No, Docubix handles chunking, embeddings and retrieval; you bring the documents. source (opens in a new tab)
Does Docubix train on my documents?
The privacy policy says it does not use customer content to train its own AI models. source (opens in a new tab)
Do I get an API on the free plan?
Yes, API access is included on both Free and Pro. source (opens in a new tab)
Sources and review methodology
Official sources and verification dates
- Docubix home page pricing · checked Oct 1, 2026
- Docubix pricing homepage · checked Oct 1, 2026
Not verified: Models available; Commercial-use terms; US availability; Enterprise tier.
How we documented and maintain this page
Every fact about Docubix above comes from the 2 official pages listed here, last compared on Sep 29, 2026; we have not run Docubix ourselves, so it has no editorial score. How we check and re-check pages.
Article updated Oct 10, 2026; prices checked Sep 29, 2026. Outbound links to vendors are plain links; we do not earn commissions. How we review · Report an error