Quickstart

Introduction

PapersGPT is a Zotero AI plugin powered by almost all the SOTA(State Of The Art) LLMs for reading and understanding papers in Zotero, especially for serious study and work scenarios.

Download PapersGPT

Download here for Zotero 7.

Installation

Open Zotero in the top menu bar, click on Tools - Plugins.

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Click on the gear icon at the top right of the window.

Click on Install Plugin From File... and open the downloaded plugin file ending with .xpi.

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Start/Close PapersGPT

There is a PapersGPT icon on the top left of main window and PDF view in Zotero. You can press on it to start PapersGPT.

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In Zotero, when you are reading a paper, press the keys to start the plugin as your will: MacOS(command + enter), Windows(ctrl + enter).

When you don't need PapersGPT, just click the 'X' button to close the window.

Select LLMs

ChatGPT, Gemini, DeepSeek, Claude ,OpenRouter, SiliconFlow, Qwen, Mistral, Kimi and GLM can all be accessed and switched by one click.

Besides the above excellent business models, Gemma 3, Qwen 3, DeepSeek, GPT-OSS, Phi-4, and Mistral can all be choosed by just one click in plugin without manualy installing many boring additional tools or softwares. More importantly, they are all free.

API KEY Configuration

When using ChatGPT, DeepSeek, Claude or Gemini, remember to set your own API KEY.

For example, if you want to use gpt-5 or other gpt serial models, you should set your own OpenAI key, so as to the usage of DeepSeek, Claude, Gemini and other LLMs.

Now chatgpt, deepseek, claude and gemini serial models are all supported. Besides the above models, in the selection of 'Customized', Qwen, Mistral, Kimi and Z.ai are supported too. Models hubs, such as OpenRouter and SiliconFlow, are supported.

How to buy API KEY from models' vendors

Please notice that you should buy API KEY from the models' vendors.

For OpenAI, please see here: https://platform.openai.com/api-keys

For Gemini: https://ai.google.dev/api

For Claude: https://docs.anthropic.com/en/api/overview

For DeepSeek: https://api-docs.deepseek.com

For OpenRouter: https://openrouter.ai/docs/quickstart

For Qwen: https://qwen.ai/apiplatform

For Mistral: https://docs.mistral.ai/api/

For Kimi: https://platform.moonshot.ai/docs/introduction#getting-an-api-key

For Z.ai: https://z.ai/manage-apikey/apikey-list

For SiliconFlow: https://docs.siliconflow.com/en/userguide/quickstart

How to use local LLM

If you are Premium or Business users of PapersGPT, you can select the "local LLM" option in the PapersGPT, no API KEY would be needed, all the available SOTA open source models are shown here! Now gpt-oss-20b, Gemma3, DeepSeek-Distill-Qwen3, Qwen 3, and Phi can all be choosed by just one click in plugin without manualy installing many boring additional tools or softwares. The selected LLM will be downloaded and deployed automatically for the first time, you can get the download process status from the ‘process bar’. Then enjoy it.

Use other LLMs by 'Customized' selection

If you want to use a LLM which is not integrated in the PapersGPT, you can try 'Customized'.

Here is a manual config steps for OpenAI, you can take it as reference.

Step 1. Select the item of 'Customized'

Step 2. Fill the three lines.

line 1: https://api.openai.com/v1/chat/completions

line 2: model name

line 3: input API KEY

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Ask any questions related to this paper

Open the file you want to chat, after starting the plugin, select the LLM, then chat pdf.

Click the ‘paper aeroplane’ button on the right to chat with it. The responses reference the relevant pieces of the original document.

Here are some examples what you can ask:

"What’s the main argument in this research paper?"

"Can you explain the steps in this process?"

"Summarize the main points in this essay."

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Below is the answer of your question.

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Ask the common questions with buttons quickly

You can also ask the common questions quickly with buttons to get a general idea of your paper.

PapersGPT provide 6 buttons for quick common questions,click the buttons to chat pdf and get a general idea.

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Summary

Summarize the main points in this paper.

Topic

Define the topic of the paper clearly.

Background

Understand the historical context of the topic talking about in the paper.

Innovations

List the main contributions or innovations of this paper.

Challenges

Identify the challenges and criticisms.

Outlook

Explore future directions and the potential.

Several questions for chatting pdf with PapersGPT

If you don't know what to chat with PapersGPT, you can refer to the following questions, the questions are very helpful for reading the paper.

What problem does the paper attempt to solve?

Is this a new problem?

What exactly is the contribution of this paper?

What are the next steps? What work can be furthered?

Can you summarize the main points in this essay?

What's the main argument in this research paper?

Can you explain the steps in this process?

What are the relevant studies? How are they classified? Who are the noteworthy researchers in the field on this topic?

Highlights of PapersGPT

Almost all the SOTA online business LLMs are available

Easily access to all the best LLM models, such as GPT 5, Gemini 2.5 Pro, Gemini 2.5 Flash, DeepSeek R1, DeepSeek V3, o4-mini, o3-mini, o1-mini, GPT-4.1, Claude Opus 4.1 and Claude Sonnet 4 with your own API Key.

With the PapersGPT, it is very easy to select and change the LLM model they prefer, not only GPTs. OpenRouter is also integrated in PapersGPT, almost all the SOTA models are there, so you can use your OpenRouter API Key to access all the SOTA models.

For example, someone want to use Claude to chat with the pdfs online. Because Anthropic’s medium-sized model Claude 3.5 Sonnet outperforms gpt-4o (ChatGPT’s latest update, as of this writing) in many ways, particularly those involving reasoning.

Local LLMs are all free, no need to purchase online API KEY

You don’t need to purchase the online model API KEY. PapersGPT will provide local free LLMs for you, just select the local LLM and use it, that’s it. Local free LLMs can be accessed both on MacOS and Windows.

Quickly gain detailed insight from multiple PDFs in Zotero

This feature helps you to transform your PDFs in Zotero into your personal knowledge base very quickly, and greatly improve your efficiency in understanding and comparing papers.

Supply the additional service of continuous updating models

SOTA models change fast, the SOTA models change almost every two weeks. Fortunately, you don't have to worry about model changes in PapersGPT. PapersGPT provides a thoughtful automatic model update service for Premium and Business users to ensure that you can use the latest and greatest models as soon as possible.

More features

RAG & Build-in Vector Database - Help to improve the generating results from LLM.

OCR - Extract visual information from images in documents.

Save money - Not need all the data, just a small amount of relevant tokens about the chat feed to LLM.