AI chat with PDF

Ernie Bot

Agents · Baidu ERNIE 4.0 / ERNIE X1 / ERNIE Turbo (in-house)

8.7

Baidu's Mandarin-first ChatGPT rival, powered by the ERNIE model family

Snowflake Cortex

RAG · Anthropic Claude, Meta Llama, Mistral Large 2, Snowflake Arctic

8.7

Generative AI and RAG built into the Snowflake data cloud

Doubao

Agents · Doubao Seed 2.1 Pro (in-house ByteDance), with Seed 2.0 / 1.5 on free tier

8.5

ByteDance's flagship AI assistant with a real agent mode and one of the largest user bases outside ChatGPT

ChatGLM (Zhipu Qingyan)

Agents · GLM-4, GLM-4V, GLM-4-Air/Flash, CogView, CogVideoX (ChatGLM family, Zhipu AI / Tsinghua KEG)

8.4

Zhipu AI's bilingual ChatGLM assistant with agents, code, image and video generation

Quivr

RAG · Multi-model (OpenAI, Anthropic, Mistral, Gemma)

8.4

Open-source RAG framework for building custom AI assistants over your own documents in a few lines of Python.

Google AI Studio

Coding · Gemini 2.5 Pro / Flash, Imagen, Veo

8.2

Browser-based playground and API console for prototyping with Google's Gemini models.

NotebookLM

RAG · Gemini 2.5

8.1

Google's source-grounded research notebook that turns your documents into chats, briefs, and AI-hosted podcasts.

AnythingLLM

RAG · Multi-model

7.9

Open-source desktop and self-hosted app that turns your documents into a private chat-and-agent workspace.

Khoj

Agents · Multi-model

7.9

Open-source personal AI that builds agents, searches your documents, and automates research across local files and the web.

Humata.ai

RAG · Multi-model

7.8

Chat-with-your-documents RAG tool with citation-backed answers across uploaded PDFs and files.

Cherry Studio

Agents · Multi-model

7.2

Open-source desktop AI client that wires 300+ LLMs into one chat, knowledge-base, and agent workspace.

OneKE

RAG · Multi-model (OneKE-13B, LLaMA3, Qwen2.5, GPT, DeepSeek-R1)

7.2

Open-source multi-agent framework for schema-guided knowledge extraction from documents.

WeKnora

RAG · Multi-model

7.2

Tencent's open-source RAG framework that turns raw documents into a queryable knowledge base, ReAct agent, and self-maintaining wiki.

FutureHouse Platform

RAG · Multi-model

7.1

Multi-agent AI research stack for scientists, with retrieval over 175M+ papers, patents, and trials.

Jenni AI

Writing

7.1

AI writing workspace built specifically for academic papers, theses, and cited research.

QuillBot

Writing · Undisclosed (proprietary)

7.1

AI paraphrasing and grammar suite that grew into an all-in-one writing toolkit.

RabbitHoles AI

Agents · Multi-model (Anthropic, Google, Groq, Perplexity, custom)

7.1

Infinite-canvas AI chat client that lets you branch, fork, and connect conversations as nodes instead of scrolling a single linear thread.

SiteSpeakAI

RAG · Multi-model

7.1

Custom-trained chatbot that turns your website, docs, and PDFs into a multilingual support and lead-gen agent.

YouTube Summary with ChatGPT & Claude

Agents · Multi-model (ChatGPT, Claude, Gemini, Mistral)

7.1

Browser extension that pipes YouTube transcripts, articles, and PDFs into ChatGPT, Claude, Gemini, or Mistral for instant summaries.

alphaXiv

RAG · Multi-model

7.0

AI reading layer over arXiv with grounded Q&A, auto-summaries, and line-by-line discussion on every preprint.

GaliChat

RAG

7.0

No-code AI chatbot builder that trains on your website content for support and lead capture.

Graphify

RAG · Multi-model

7.0

Open-source on-device knowledge graph engine that turns code, docs, papers, meetings and images into a queryable graph.

Kotaemon

RAG · Multi-model (OpenAI, LlamaCPP, any OpenAI-compatible endpoint)

7.0

Open-source RAG UI for chatting with your own documents, locally or self-hosted.

PageIndex

RAG

7.0

Vectorless reasoning-based retrieval for long documents, with traceable, auditable answers.

Rember

Writing · Multi-model

7.0

AI flashcard generator that turns PDFs, videos, and chats into spaced-repetition decks.

RowSpeak

Agents · Gemini

7.0

AI spreadsheet analyst that turns messy Excel, CSV, and PDF tables into dashboards and management-ready reports.

Superpower ChatGPT

Agents · GPT (via ChatGPT UI)

7.0

Chrome extension that bolts folders, prompt libraries, and bulk export onto the ChatGPT web UI.

YouTube Summary with ChatGPT & Claude

Writing · Multi-model (ChatGPT, Claude, Gemini, Mistral)

7.0

Browser extension that pipes YouTube transcripts, articles, and PDFs into ChatGPT, Claude, Gemini, or Mistral for instant summaries.

Aidbase

Agents · OpenAI

6.9

AI-powered customer support stack purpose-built for SaaS startups, bundling a trained chatbot, ticketing, and knowledge base.

ChatGPT for Google

Agents · Multi-model (GPT-4, Claude 2, others)

6.9

Browser extension that pipes GPT-4, Claude and other LLM answers into your existing search results page.

Chat With PDF by Copilot.us

RAG

6.9

Conversational PDF Q&A bundled into a multi-app productivity membership.

Elephas

Writing · Multi-model (GPT-5, Claude, Gemini, BYO API)

6.9

Privacy-first Mac AI writing assistant that redacts PII before any cloud call and indexes your files locally.

Kosmik

Image Generation

6.9

AI-powered infinite canvas for moodboards, research, and visual thinking.

SciSpace

RAG · Multi-model

6.9

AI research assistant that turns dense PDFs and literature reviews into searchable, citation-backed answers.

aiPDF

RAG

6.8

Chat-with-your-documents app that ingests PDFs, EPUBs, web pages and YouTube videos with cited answers.

ChatPDF

RAG · GPT-4o / GPT-4o-mini

6.8

Conversational Q&A over PDFs and other documents with citation-backed answers.

Explainpaper

RAG · Undisclosed (tiered basic vs. advanced)

6.8

AI reading companion that decodes dense academic papers by highlighting and chatting with the PDF.

Genei

RAG · GPT-3 (per public site)

6.8

AI research assistant that summarizes PDFs and web pages and answers questions across your document library.

Mem

Writing · Multi-model

6.8

AI-native notes app that auto-organizes your captures and surfaces context as you work.

Nexus AI

Writing · Multi-model

6.8

All-in-one AI workspace bundling writing, image, voice, and chat into a single subscription.

Podify

Writing

6.8

AI-powered LinkedIn growth platform that turns PDFs, videos, and prompts into branded posts, comments, and carousels.

Recall

RAG · Multi-model (GPT, Claude, Gemini)

6.8

AI-powered personal knowledge base that summarizes, links, and quizzes you on everything you save.

SlidesWizard

Writing · ChatGPT (OpenAI)

6.8

AI presentation generator that ships finished PowerPoint and Google Slides decks from a prompt or outline.

Wordtune

Writing · AI21 Labs (Jurassic-family) + multi-model

6.8

AI rewriting and paraphrasing assistant from AI21 Labs that polishes tone, summarizes long content, and drafts in your voice.

Mathos AI

Writing · Proprietary math reasoning model

6.6

AI math solver and tutor that accepts photo, voice, text, or LaTeX input and walks through step-by-step solutions.

Gist AI

Writing · ChatGPT (OpenAI)

6.5

ChatGPT-powered Chrome extension that summarizes articles, YouTube videos, and PDFs in one click.

Ailin

Agents · Multi-model — routes to OpenAI, Anthropic Claude, Google Gemini, and customer-supplied custom models

One prompt, every AI model — plus a no-code builder for agents and workflows

AI Toolbox

Writing

One Chrome extension for ChatGPT, Gemini, Claude, and Grok