Mathis Lichtenberger @xathis Twitter profile

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Mathis Lichtenberger

@xathis

1 year

traffic is so high that unfortunately we'll run into OpenAI usage limits soon. Over 35.000 PDF chats so far! 🔥 For now the PDF size is limited to 50 pages, but we might have to lower it even further

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Mathis Lichtenberger

@xathis

1 year

65,000 chats on after just 5 days - GPT style chat with any PDF 🥳 While we wait for @OpenAI to increase our API limits, we now also accept custom OpenAI API keys to get around rate limits and the 50-page restriction 🔑

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Mathis Lichtenberger

@xathis

1 year

A new just dropped - Chats are now saved and can be continued later. This is just the beginning, we have plenty of other improvements in mind, let me know what you'd like to see next!

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Mathis Lichtenberger

@xathis

1 year

@MushtaqBilalPhD Thanks for sharing! I’m the developer of ChatPDF, any feedback or suggestions very welcome 🙏

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Mathis Lichtenberger

@xathis

1 year

Accouncing - Chat with any PDF! It's using the new ChatGPT API that OpenAI released yesterday and is super fast and free to use. Quickly answer anything from books, papers, manuals, contracts!

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Mathis Lichtenberger

@xathis

1 year

@heyBarsee Great list and thanks for featuring ChatPDF 🙏 Here are all links:

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Mathis Lichtenberger

@xathis

1 year

Today we passed 300,000 chats on 😍 👩‍🎓Especially students really love it for academic articles and papers. We've seen people ask hundreds of questions over multiple hours to a single PDF 🤯 👾Join our new Discord

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Mathis Lichtenberger

@xathis

11 months

📢 Exciting news! just got a fresh makeover! 🎉 Introducing our sleek side-by-side layout: View and chat with your PDFs simultaneously, no more window-flipping. 📚💬 Give it a spin and let me know your thoughts!

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Mathis Lichtenberger

@xathis

1 year

Unbelievable! People really love to chat with their PDFs instead of scrolling through them 💬 100,000 PDFs have learned to chat on ...in less than a week! The AI revolution is progressing incredibly fast, thanks to the amazing ChatGPT API from @OpenAI

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Mathis Lichtenberger

@xathis

1 year

@mayfer Confession: , the largest chat-with-your-doc site out there still does vector search locally

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Mathis Lichtenberger

@xathis

1 year

is going places! It went viral in Korea yesterday and China today! 🇰🇷🇨🇳 50 hours in and people have chatted with 12.500 PDFs already. 🔥 Special thanks to @AnthonyCastrio for featuring it in @BotEatBrain and everyone else who spread the word 💞

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Mathis Lichtenberger

@xathis

1 year

👩‍🏫 Are you a teacher and want to let your students ask questions to class material? 👋🏼 Are you onboarding a new employee and want to simplify the process? Now you can share chats on , so that anyone can chat with your PDF! 🙌

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Mathis Lichtenberger

@xathis

11 months

The API is here! 🤖 Build custom PDF chatbots 📚 Extract data from PDFs Not just a simple wrapper around LangChain, we've built the chunking, retrieval, and prompting from scratch 💪 Check out the docs and start building for free

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Mathis Lichtenberger

@xathis

1 year

Someone posted ChatPDF on Hacker News and it made it to the front page! ♥️

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Mathis Lichtenberger

@xathis

1 year

To cover the OpenAI API cost, we introduced a Plus plan for $5/mo for power users, which allows up to 2000 pages per PDF. 🥳 Conversion rate looks very promising so far, and we're committed to keep the free version running! Thanks to all our awesome users ♥️

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Mathis Lichtenberger

@xathis

1 year

New features just shipped on ✏️ Rename, ⬇️ Export, and ❌ Delete chats! There's also an FAQ now and we're working hard on integrations. If you're interested, fill out the API registration form reachable from the bottom of the website ✨

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Mathis Lichtenberger

@xathis

10 months

The home page now features some of the most viral TikToks and Tweets from all over the world! 📹🐦 We love AI and student influencers and are introducing a payout program for viral posts! 💸 Join us and take part in the success! 🏆🎉

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Mathis Lichtenberger

@xathis

7 months

🚀Double the power, double the perks!🚀 is teaming up with - every ChatPDF Plus user has access to Jenni AI Unlimited. With millions of users on both platforms, we're just starting to shape the future of education - powered by AI.

Jenni AI

Jenni is your AI assistant for all things in your academic journey. We specialise in developing AI that helps you make your writing more efficient, while still keeping control.

jenni.ai

David Park

@Davidjpark96

7 months

🎉 Jenni AI x ChatPDF 🎉 All Jenni AI subs get free access to ChatPDF, effective immediately Being able to chat with your documents and then getting tailored AI text generations based on your library is the holy grail of drafting Jenni AI is the #1 tool for academic writing…

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Mathis Lichtenberger

@xathis

4 months

Launching today: Fixkey AI - GPT typing corrections on macOS. Correct grammar and typos as you type with just a keyboard shortcut. It's natural, quick, and keeps your focus on your ideas, not errors. Press Option+S and AI fixes the last sentence in milliseconds.

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Mathis Lichtenberger

@xathis

1 year

Slack integrating AI will be industry-transforming. 🔥Partnering with OpenAI sounds promising, but packaged as a normal Slack app seems underwhelming Integrate it in the core app! ✍️Context aware auto-complete for messages 🔍Semantic search and question answering across channels

Slack

@SlackHQ

1 year

Introducing the ChatGPT app for Slack by @OpenAI ! 💬 Summarize conversations to quickly catch up on any channel 📚 Tap into tools to learn about any topic in an instant 🖊️ Draft and edit messages in seconds with smart writing assistance Learn more:

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Mathis Lichtenberger

@xathis

1 year

@PrescientTrade Hey! We're using embeddings to create a semantic index of the paragraphs and then add the most relevant ones to the prompt during question-answering.

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Mathis Lichtenberger

@xathis

1 month

2023 was the year of chat bots. 2024 will be the year of voice bots. Going live today with... 📚 CallPDF 🎥 CallTube 🌐 CallWebsite 🌟 CallStar 👾 CallHackerNews 🙏 CallJesus Being first mover with ChatPDF was kind of fun, let's try that again! 👇

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Mathis Lichtenberger

@xathis

1 year

Try it yourself! 1️⃣ Drop a PDF on 2️⃣ Click on the share icon top right 3️⃣ Copy the link and share it away! Available for free and without sign in ❣️ Share your favorite PDF chats in the comments!

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Mathis Lichtenberger

@xathis

3 months

@fixkeyai is #1 on Product Hunt! 🚀 This is my third launch, but the first time leading, let's see if we can keep it up to become product of the day 🥇

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Mathis Lichtenberger

@xathis

1 year

@keyahayek Thanks so much for sharing this, there was a huge influx of Chinese users today! Let me know if there are any problems with the Chinese language, I have no experience with that :)

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Mathis Lichtenberger

@xathis

1 year

@OfficialLoganK Improve rate limit documentation. 40 is not a value that is listed anywhere in the docs:

OpenAI Platform

Explore developer resources, tutorials, API docs, and dynamic examples to get the most out of OpenAI's platform.

platform.openai.com

Mario Guzman

@MarioGzSl

1 year

@xathis I got this error, maybe it’s related to the traffic limit

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Mathis Lichtenberger

@xathis

1 month

@MushtaqBilalPhD Thanks so much for helping spread the word about this. One year after launching ChatPDF, I believe this is the next level of AI interaction. Voice just feels more natural and you can use it hand's free. Check it out yourself at

CallPDF

Call any PDF - Realistic AI Voice Chats

www.callpdf.ai

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Mathis Lichtenberger

@xathis

1 year

Super interesting insights about ChatGPT plugins and plans for the @OpenAI API by @sama

OpenAI's plans according to Sam Altman

Last week I had the privilege to sit down with Sam Altman and 20 other developers to discuss OpenAI’s product plans. Sam was remarkably open. The discussion touched on practical developer issues as...

humanloop.com

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Mathis Lichtenberger

@xathis

2 months

The hype isn't stopping. is still in the top 50 Gen AI web products, #45 right now. Measured by monthly visits in today's @a16z post about Gen AI consumer products What a time to be an AI hacker!

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Mathis Lichtenberger

@xathis

1 year

@NatureOath @MushtaqBilalPhD There’s a free version that can handle PDFs up to 200 pages. For more, we have a $5/mo Plus plan

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Mathis Lichtenberger

@xathis

11 months

Bard now integrates implicit code execution to solve math questions. I believe browsing the internet and executing code are so essential that these tools will be integrated at the LLM API level soon, the API user won’t even know about it.

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Mathis Lichtenberger

@xathis

1 year

@Corrales_LF @MushtaqBilalPhD It does! It can understand papers in any language and reply in any language. Just ask it to speak your language if it does not do so automatically

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Mathis Lichtenberger

@xathis

1 year

@daaniyaan Sure! Frontend is Next.js with a bit of Ant Design components, backend runs on Google Cloud Functions

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Mathis Lichtenberger

@xathis

1 year

@krishnerkar @mayfer Locally as in “not in a vector db”. It’s indeed a JSON, stored in Google Cloud Storage. Loaded into a cloud function where a for loop is running over it, computing the cosine similarities

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Mathis Lichtenberger

@xathis

1 year

@OfficialLoganK @OpenAI Yes! Either that or tags/labels in the request body. To distinguish: * Environments (Dev/Prod) * Embeddings/Completions * Different Use Cases In the dashboard

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Mathis Lichtenberger

@xathis

1 year

@anitakirkovska @ThePr0mpt - Chat with any PDF! Launched 3 days ago, went viral in China over the weekend. Now integrating payments to keep it running

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Mathis Lichtenberger

@xathis

1 year

@OfficialLoganK Thanks for reaching out, @OpenAI actually increased our limit to $10k by now :))

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Mathis Lichtenberger

@xathis

1 year

@rauchg @nextjs @vercel Thanks for providing great infrastructure

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Mathis Lichtenberger

@xathis

1 year

@dharmesh Oh, found it:

OpenAI's plans according to Sam Altman

Last week I had the privilege to sit down with Sam Altman and 20 other developers to discuss OpenAI’s product plans. Sam was remarkably open. The discussion touched on practical developer issues as...

humanloop.com

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Mathis Lichtenberger

@xathis

3 months

@damengchen

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Mathis Lichtenberger

@xathis

1 year

@karpathy @mayowaoshin Also check out to chat with any PDF up to 120 pages for free and without sign-in

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Mathis Lichtenberger

@xathis

1 year

@luizfilipecm I have it implemented in case we're running out of the limits. Focus right now is to have a payed version though, lost quite a bit of money so far... (api key in the screen is disabled btw ;P)

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Mathis Lichtenberger

@xathis

1 month

5. Exploring Wikipedia or any website without looking at a screen is now possible with CallWebsite. Get summaries, explanations and ask any question, making multitasking a breeze.

Call Website

Call any Website - Realistic AI Voice Chats

www.callwebsite.ai

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Mathis Lichtenberger

@xathis

1 year

@elliot_was_here @MushtaqBilalPhD That’s what we do already! We released an update two days ago which saves old chats. If you tried before that, make sure to check out again!

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Mathis Lichtenberger

@xathis

1 year

@dharmesh @sama Excited to see what you come up with! I bought after the announcement

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Mathis Lichtenberger

@xathis

1 year

@gdb Will paid plugins be allowed?

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Mathis Lichtenberger

@xathis

1 year

@MushtaqBilalPhD When you already know which paper has the information you need - check out . Used by 100,000s of academics and students to extract information from PDFs through an AI chat

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Mathis Lichtenberger

@xathis

1 year

@holmesjtg I like that idea! Could be an Electron app running on all desktop platforms

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Mathis Lichtenberger

@xathis

4 months

Check out the free trial for macOS at Built together with @raphaelmosaic & @Karmedge - my favourite e/acc crew! We decided to build this on the first day we met - and it has been a blast ⚡

Fixkey

Fixkey fixes your grammar in any app using AI.

www.fixkey.ai

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Mathis Lichtenberger

@xathis

1 year

@tito @LPitsoulis @pinecone @LangChainAI Do you know of any scientific investigation on this? Does overlap really help? In the open source retrieval gpt plugin OpenAI suggests further embedding calculations. Would love to see this analyzed systematically

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Mathis Lichtenberger

@xathis

1 year

@Saboo_Shubham_ - Chat with any PDF, fast & free!

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Mathis Lichtenberger

@xathis

1 year

@aenish_shrestha @OpenAI Working on a paid version with an increased page size and asking multiple PDFs at the same time

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Mathis Lichtenberger

@xathis

1 year

@pwang_szn Yes, I'm planning to have a paid version out in the next few days!

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Mathis Lichtenberger

@xathis

3 years

Hey Twitter, I created something! - a new Firestore GUI client! I'm super excited about the launch and could use some help on Product Hunt 🚀 @firefooapp

Firefoo - Product Information, Latest Updates, and Reviews 2024 | Product Hunt

Firefoo is a sophisticated GUI tool for Firebase Cloud Firestore. View and edit your data in a table, tree or JSON, export to JSON and CSV, and run queries from a JavaScript shell.

www.producthunt.com

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Mathis Lichtenberger

@xathis

1 month

3. Distill the key insights from any PDF document by talking it through with AI. Perfect for all students out there: prepare for your exams while commuting, or even relaxing at the beach.

CallPDF

Call any PDF - Realistic AI Voice Chats

www.callpdf.ai

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Mathis Lichtenberger

@xathis

1 year

@bt_veeru Yep, working on that right now!

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Mathis Lichtenberger

@xathis

1 year

@acomg2005 Not yet, but hopefully soon

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Mathis Lichtenberger

@xathis

1 year

@hav_hendrik @Herr_Ka_Punkt Kann ich! Die Daten werden auf Google Cloud Storage gespeichert und nach 7 Tagen gelöscht

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Mathis Lichtenberger

@xathis

1 year

@ximix84 @PrescientTrade Yes, using the OpenAI embedding API. Currently it's doing vector search in memory, but will soon need to move to a proper vector database, probably Pinecone!

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Mathis Lichtenberger

@xathis

4 months

@Karmedge Couldn't have done this without you - amazing SwiftUI warrior and native app advocate! This has been such a breeze ♥️

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Mathis Lichtenberger

@xathis

1 year

Sounds like we won't get GPT-4 image recognition this year. This is too bad, understanding pixels instead of just text will kick of another level of possibilities!

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Mathis Lichtenberger

@xathis

1 year

@JodyKo_crypto Working on that with a paid version coming soon

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Mathis Lichtenberger

@xathis

1 year

@MomoMaximilian Both within two weeks hopefully

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Mathis Lichtenberger

@xathis

11 months

Huge moat for Google because their search is so much better.

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Mathis Lichtenberger

@xathis

3 months

Fixkey automatically selects the current sentence and fixes spelling and grammar. In every app. No looking back, just type as fast as you can and GPT cleans up after you Support the launch here:

Fixkey - Product Information, Latest Updates, and Reviews 2024 | Product Hunt

An AI copilot for your writing

www.producthunt.com

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Mathis Lichtenberger

@xathis

3 months

@fixkeyai I'm blaming it on the incredibly talented team: @raphaelmosaic and @Karmedge are the hands down best AI hackers with a great sense for UX

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Mathis Lichtenberger

@xathis

1 month

Help us lead the AI voice revolution and jjoin the discussion 💛 Product Hunt: Reddit: Hacker News:

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Mathis Lichtenberger

@xathis

1 month

1. Imagine having a phone chat with your favorite celebrity, game character, or historical figure. CallStar makes it happen with low-latency, super realistic AI calls. Experience the future of fan interactions today!

CallStar

AI Voice Calls with Characters and Celebrities

www.callstar.ai

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Mathis Lichtenberger

@xathis

1 year

I wonder how this will interfere with retrieval-augmented chats. Tools like create fake history messages to augment context for generating a response. For the next turn, these are not sent again

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Mathis Lichtenberger

@xathis

1 year

@OpenAI @sama It's all about UX. Chat is not a great interface for most things. I don't think Plugins are going anywhere in the current form.

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Mathis Lichtenberger

@xathis

10 months

@karim_ouda Students and researchers, yes!

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Mathis Lichtenberger

@xathis

1 year

@jerryjliu0 @gpt_index I assume the post means that recency is factored in after semantic search? Is there any vector database that can weight in the recency from a meta attribute while searching?

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Mathis Lichtenberger

@xathis

1 year

@robynrbieber 200 pages per PDF on the free version and 2000 pages on the $5/mo Plus plan

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Mathis Lichtenberger

@xathis

11 months

@Moribundo_Star No video tutorials, but there are code snippets in the documentation for an easy start!

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Mathis Lichtenberger

@xathis

1 year

ChatGPT could try to become more of a platform that allows Plugins to define their own UIs, becoming more of an app store. But that cannot work from within an app, something like that needs to integrate on the operating system level. If only OpenAI or Microsoft had a phone...

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Mathis Lichtenberger

@xathis

4 months

@raphaelmosaic Such a breeze! Glad you came up with this idea and changed the way I write day to day

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Mathis Lichtenberger

@xathis

1 month

4. Dive deep into any YouTube video and extract the most valuable information. Turn confusion into clarity, all through voice.

CallTube

Call any YouTube Video - Realistic AI Voice Chats

www.calltube.ai

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Mathis Lichtenberger

@xathis

1 month

2. Explore faith and spirituality through an interactive dialogue. It's as if you're speaking directly to the Bible itself. Find guidance, wisdom, and a new way to connect.

Call Jesus

Realistic AI Voice Chats with Jesus

www.calljesus.ai

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Mathis Lichtenberger

@xathis

1 year

@GuptaAranya Thanks, it's on our roadmap!

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Mathis Lichtenberger

@xathis

1 year

@OfficialLoganK - Chat with any PDF

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Mathis Lichtenberger

@xathis

1 year

@sasha_gutfraind @OpenAI Yes, it's planned! Would you have a use case?

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Mathis Lichtenberger

@xathis

1 year

@tmanager2021 We introduced a paid Plus plan for $5/mo that allows up to 2000-page PDFs. It's been live for two days and willingness to pay looks promising so far, so we can keep the free version running it seems :)

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Mathis Lichtenberger

@xathis

1 year

@balakhonoff ChatPDF uses GPT 3.5 for now, which is the same as ChatGPT. We are looking at how to add GPT-4. But GPT-4 won't be available for all messages on the free plan because it costs too much.

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Mathis Lichtenberger

@xathis

1 year

@borjasolerr @aaditsh

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Mathis Lichtenberger

@xathis

1 year

@abacaj is transcending the AI hype! We don't even mention AI or ChatGPT on our landing page ;)

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Mathis Lichtenberger

@xathis

1 year

@jadedallday @Corrales_LF @MushtaqBilalPhD Yes, it can answer all your questions about the article

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Mathis Lichtenberger

@xathis

1 year

@suidu0 Hey! ChatPDF is using the embeddings API from OpenAI to create a semantic Index over the paragraphs of the PDF and then prompting the Chat API with the most relevant paragraphs only

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Mathis Lichtenberger

@xathis

1 year

@marioamandio Our UX will be better and more specialized to different niches. But I’m also excited about ChatGPT plugins and hope there’ll be a ChatPDF plugin soon

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Mathis Lichtenberger

@xathis

4 months

No pop-ups, no manually selecting, no right-click, nothing to get you out of flow Just a native SwiftUI menu bar app with a refreshing design

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Mathis Lichtenberger

@xathis

1 year

@MarioGzSl Oh wow, rate limits now! Thanks for letting me know, for now retrying should work most of the time!

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Mathis Lichtenberger

@xathis

1 year

@psiesta11 @pixelhopio @OpenAI Yes it’s using chat-3.5-turbo and inserting the pdf extracts into a user message!

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Mathis Lichtenberger

@xathis

1 year

@OfficialLoganK You’re incredible!

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Mathis Lichtenberger

@xathis

1 year

@Xu_Cao_ @AnthonyCastrio @BotEatBrain Not yet but that’s a good idea. Which format would you prefer? Or do you mean to persist chats and continue them later?

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Mathis Lichtenberger

@xathis

11 months

@jiboncom Not at this point, it’s text-only for now

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Mathis Lichtenberger

@xathis

1 year

@onemoreprince Good point, we’ll prioritize this!

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Mathis Lichtenberger

@xathis

1 year

@iamveevz @luizfilipecm No I didn't deploy it yet, because we still have some usage left, but it might happen at some point

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Mathis Lichtenberger

@xathis

1 year

@danielamof @radurdin @benjami @granludo We use Stripe as a secure payment provider via their official site and will never get to know your sensitive credit card information

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Mathis Lichtenberger

@xathis

1 year

@ion_tapordei @karpathy @mayowaoshin Not tha secret ;) We’re using the embeddings api from OpenAI to create a semantic index over the paragraphs of the pdf and only present the most relevant paragraphs to the ChatGPT api!

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Mathis Lichtenberger

@xathis

1 year

@leonagano @bentossell @levelsio Such a steal! Love the idea 😍

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