Bunni

Bunni

Bunni is a web tool that lets you upload PDFs to summarize, extract information, and chat with one or multiple documents in any language using large language models; it offers pay-as-you-go credit bundles with no recurring fees.

Bunni is research software teams evaluate for education & research. Use this page to review pricing, integration signals, and the best alternatives before you commit.

Freemium API Enterprise 80/100
#90 in Research (90 tools)
Added 2 months ago
Data reviewed Jul 16, 2026

Profile facts come from the vendor source. AiMatch labels unknown pricing or API details instead of estimating them.

Review official source →

Quick Overview

Best for: Education & Research

What it does

Research software for decision-makers comparing workflow fit and alternatives.

Best fit

Education & Research

Pricing snapshot

Freemium from Buy credit bundles as needed; no recurring fees (specific prices not listed on the provided page).

Next step

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Bunni

Bunni is an online service for interacting with PDF documents using large language models. Users can upload PDFs to summarize content, extract information, and ask questions in any language. The product supports large files (up to 20MB), allows uploading multiple documents to query them as a single collection, and provides shareable links so you can share the document plus Q&A with others. Bunni operates on a pay-as-you-go credit model with no recurring subscription fees and advertises a free trial option.

Bunni is a web tool that lets you upload PDFs to summarize, extract information, and chat with one or multiple documents in any language using large language models; it offers pay-as-you-go credit bundles with no recurring fees.

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Key Features

PDF summarization and Q&A

Summarize PDFs and ask questions about document content; answers are based on the uploaded PDF(s).

Multi-document chat

Upload multiple PDFs and chat with them as one combined collection to get answers across all files.

Large file support

Upload PDFs up to 20MB in size (equivalent to large reports or dissertations).

Multi-language support

Supports all languages for summarization and question answering.

Shareable links

Get a unique link for your document to share the document and its Q&A with others and optionally allow them to ask questions.

Pay-as-you-go credits

Buy credit bundles and use them as needed; no recurring fees.

Model support

Uses OpenAI models (GPT-4, GPT-4o mini, o2, o2 mini) with plans to add Claude and DeepSeek.

Pricing

Free Tier Available

Try for free (free trial available)

Pay-as-you-go

Buy credit bundles as needed; no recurring fees (specific prices not listed on the provided page).
  • Use credits to process PDFs
  • No subscription required

Use Cases

Research

Upload research papers, news articles, and academic publications to extract key facts and summaries.

Understanding documents

Clarify and summarize content from reports, long-form documents, and articles to get to the facts quickly.

Reference and manuals

Upload instruction manuals, guides, and how-tos to quickly find relevant instructions and reference material.

Collaboration and sharing

Share documents and the associated Q&A with colleagues or family via a unique link; allow others to ask questions.

Integrations

OpenAI models

Uses OpenAI's GPT-4, GPT-4o mini, o2, and o2 mini to power summarization and Q&A.

Future model integrations

The site states Claude and DeepSeek will be added soon.

Benefits

No recurring subscription fees — buy credit bundles and pay as you go.
Handles large documents (up to 20MB), suitable for long reports and dissertations.
Supports multiple documents combined into a single chat session.
Multi-language support enables use with documents in any language.
Shareable links make collaboration and distribution of Q&A simple.
Backed by modern LLMs (OpenAI GPT-4 family) for higher-quality summaries and answers.
100% no-questions refund policy.

Limitations

Do not upload private or sensitive material; service is stated to be secure only for non-sensitive content.
Individual PDF upload limit is 20MB.
No recurring subscription features — model is pay-as-you-go which may not suit users wanting a subscription plan.

Frequently Asked Questions

Can't find an answer?
Click the blue circular button bottom right and chat to someone.
How secure is Bunni?
Secure enough for non-sensitive content. You should not upload any private or sensitive material. Read our Privacy Policy.
How is this different to ChatGPT?
ChatGPT only provides answers from public information on the internet. Bunni answers questions based on the content of the PDF you upload.
What models does this use?
OpenAI's GPT 4, GPT 4o mini, o2, and o2 mini. We are adding Claude and DeepSeek soon.
Can I upload multiple documents?
Yes! Upload multiple PDFs and chat with them as one single collection.
What languages do you support?
All languages!
Can I get a refund?
Yes, we have a no-questions 100% refund policy.

Getting Started

  1. 1 Step 1: Create an account or sign in (site shows a Sign in option).
  2. 2 Step 2: Try for free or buy credit bundles (pay-as-you-go) and upload your PDF (up to 20MB).
  3. 3 Step 3: Chat with the uploaded PDF(s) to summarize, extract information, and share the unique document link.

Support

chat

Click the blue circular button bottom right on the site to chat with support.

docs/policies

Site links include Usage Policy and Privacy Policy for guidance.

email link

The site lists an 'Email Us' link for contact (specific email address not provided on the supplied content).

API

Available: Yes

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