Langtail
p/langtail
Ship AI Apps With Fewer Surprises
Petr Brzek
Langtail Public Beta โ€” Ship AI apps with fewer surprises
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Langtail is an LLMOps platform that helps teams speed up the development of AI-powered apps and ship to production with fewer surprises. With Langtail, you can debug prompts, run tests, and observe whatโ€™s happening in production.
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Petr Brzek
Maker
๐Ÿ“Œ
๐Ÿ‘‹ Hi Product Hunters! Iโ€™m Petr, co-founder and CEO of Langtail. Over the past year, Iโ€™ve spoken with dozens of founders and engineers about their experiences building AI-powered apps. I heard from almost everyone that taking an app from a simple demo to a great product that can be shipped to users is HARD WORK. Some of the common challenges I heard: - LLMs can be unpredictable, making traditional testing tools more frustrating than helpful. - Writing a good prompt is an art form, and sometimes the best person for the job isnโ€™t an engineer - which is a problem if all of the prompts live in git. - The best practices for using LLMs are constantly changing as new models are released and as teams get more experience. We built Langtail to address the pain points that a team experiences as they take their proof-of-concept and turn it into a real product. Here are the top features in Langtail: ๐Ÿงช **Playground:** Debug and collaborate on prompts with your team. โœ”๏ธ **Tests:** Create a suite of tests to evaluate how changes affect your promptโ€™s output. ๐Ÿš€ **Deployments:** Publish prompts as API endpoints, allowing you to easily invoke them from your app. ๐Ÿ“Š **Observability:** Logs provide insight into how your prompt is responding to real-world users and metrics help you monitor key metrics like latency and cost. If you give Langtail a try today, use the promo code PH50 for 50% off for life. You can claim it in the Billing section. If you have any thoughts about your first few minutes poking around the platform, drop them as a comment here and me or someone else on the team will respond!
Petr Brzek
Thanks Michael. ๐Ÿ™
Tomรกลก Kafka
Ever since I have known @petrbrzek, he and his team has always built tools you want to use - attention to detail is their brand. And current state of LLMs can really use a debugging & testing workbench :).
Ryan Hefner
@tomaskafka We like to think so! We've been obsessing over every detail of Langtail in preparation for this launch. It isn't perfect, but we think it's the best UX out there today. ๐Ÿ™‚
Petr Brzek
Thank you, @tomaskafka, for the nice comment. I appreciate it. โค๏ธ
Martin Duris
@tomaskafka Thank you Tomas!
Lubos Buracinsky
Top product and team! The jingle helps too ๐Ÿ˜‚
Ryan Hefner
@lubos_buracinsky Thank you Lubos! We went back and forth about the jingle, so I'm glad that it's a hit ๐Ÿ˜€
Petr Brzek
@lubos_buracinsky Thank you. Suno AI helped us sing the jingle. ๐Ÿ˜€
Martin Duris
@lubos_buracinsky Thanks Lubos. I'm happy you like the video even though it is a bit cringe. ๐Ÿ˜‚
Sudhanshu Gautam
Been using LangTail for a few months now, highly recommend. It has kept me sane. If you want your LLM apps to behave uncontrollably all the time, don't use LangTail. On the other hand, if you are serious about the product you are building, you know what to do :P Love the product and the team's hard work. Keep up the great work!
Petr Brzek
@sudhanshug16 Thanks, it means a lot to us.
Martin Duris
@sudhanshug16 Thanks a lot Sudhanshu! A great roadmap lies ahead of us; stay tuned.
Soham Adwani
Been using Langtail for a while, and it has made working with our clients a breeze
Ryan Hefner
@snazzyham It was great to chat with you last week and learn how your team has been using Langtail. What a cool use case!
Petr Brzek
@snazzyham โค๏ธ
Martin Duris
@snazzyham Thank you for your trust, Sohan, in using Langtail with your clients. We are working on new features that speed up your workflow with clients even more. ๐Ÿš€
Jakub ลฝitnรฝ
๐Ÿ’ก Bright idea
This is already a killer tool for many use-cases we are already using it for. Super excited for the upcoming features and good luck with the launch and further development! ๐Ÿ’œ
Petr Brzek
@jakubzitny Thank you very much for your support. We appreciate it. ๐Ÿ™
Ryan Hefner
@jakubzitny great to hear @jakubzitny! So grateful for all of the early feedback we've gotten from the Deepnote team!
Martin Duris
@jakubzitny Thanks Jakub! We're excited to work with Deepnote on upcoming features. Thanks for all the feedback and trust. โค๏ธ
Honza Slรกdek
Just yesterday I recommended Langtail to a friend who is starting to build with LLMs. I think it's the best choice out there to start with a simple prototype and move to production.
Ryan Hefner
@honzasladek Thank you Honza โ€” that is a high honor!
Martin Duris
@honzasladek Thank you Honza!
Marc Klingen
Congrats on the launch @petrbrzek! Love the video
Petr Brzek
Hello @marc_klingen, thank you. ๐Ÿ˜€ I saw that you are launching tomorrow. I wish you good luck ๐Ÿคž.
Martin Duris
@marc_klingen Thanks Marc! Good luck with your upcoming launch.
Patrik Martinko
Great tool for LLMs ๐Ÿš€๐Ÿš€๐Ÿš€
jรธlly๐Ÿ”ฅgood
๐Ÿ‘‹ Hey, I've tried your platform a few times now, and wow, the UX is outstanding! The effort that went into the tool you launched today is incredible - great job, @petrbrzek @rychlis and the Langtail team!  Whatโ€™s in the pipeline for the future? Any chance youโ€™ll support hot new open-source models like Llama3? Also, super keen to see if there's a plan for a self-hosted/on-premise gateway option. Thanks, and good luck on your journey! ๐Ÿš€
Tomas Rychlik
@good_lly Hello, thanks for your feedback! Actually, last week when LLama3 came out, I was pretty intrigued and started experimenting with that myself. If you upvote the feature request here, I will reach out and invite you to an experimental version of Langtail supporting more models in the coming weeks: https://lngt.io/mlVS7
Petr Brzek
Hello @good_lly, thanks for the great comment. We are preparing: โ–ถ๏ธ Support for multiple LLM providers โ–ถ๏ธ Focus on prompt evaluations โ–ถ๏ธ Support for OpenAI assistants We are already internally testing Llama3 and will launch it soon.
Jiล™รญ Vicherek
Great team, great market, great investors! I am super excited to see it in production!!!!
Ryan Hefner
@jiri_vicherek Thank you, Jรญล™รญ! We are too!
Martin Duris
@jiri_vicherek Thanks Jiri. Let me know if you need any help with onboarding.
Isabella Skoล™epovรก
The team behind this is incredible and has great passion for making the UX be best-in-class. They are also extremely focused on solving real problems by providing the tools for people to ship things with confidence. Also, they are laser focused not just on the easy parts, but also on the long-term evolution of your applications. I had the chance to see an early version and it was already incredible back then and they only improved it over time.
Tomas Rychlik
@isabella_skorepova1 Thanks for the kind words! ๐Ÿ˜Š
Petr Brzek
@isabella_skorepova1 Thanks a lot Isabella. Appreciate it. โค๏ธ
Lukas Macner
Amazing - Looking forward to trying it myself!
Ryan Hefner
@lukasmacner Let us know your first impressions of Langtail when you get the chance!
Martin Duris
@lukasmacner ๐Ÿ˜
Anastasiia Zvenigorodskaia
Absolutely great results! Congrats, folks!
Ryan Hefner
@zvenigorodskaia Thank you!
Albert
Congratulations on the launch of Langtail Public Beta, Petr and team! It's exciting to see a platform that tackles the challenges of developing AI-powered apps head-on. The features like Playground, Tests, Deployments, and Observability seem like game-changers for teams working on AI projects. As the landscape of AI models constantly evolves, how do you plan to stay ahead and keep Langtail up-to-date with the latest advancements in the field?
Tomรกลก Stankoviฤ
Amazing! Fingers crossed! ๐Ÿ”ฅ
Petr Brzek
Thanks Tomas ๐Ÿ’ช๐Ÿป
Johan Cutych
Exciting! Let's go!
Ryan Hefner
Petr Brzek
@johancutych Thanks ๐Ÿš€
Martin Duris
@johancutych ๐Ÿš€๐ŸŒ
YiฤŸit Konur
๐Ÿ’ก Bright idea
LLM products are creating a flurry of bad experiences in their rush to hit the market quickly. But Petr and his team have been demonstrating since day one just how serious they are about doing this job with outstanding designs. I've been following them for over a year now and I highly recommend them to everyone. I'm certain they're going to reach fantastic places.
Ryan Hefner
@yigitkonur Thank you so much for being one of our most active users, YiฤŸit! We appreciate your feedback!
Martin Duris
@yigitkonur Thanks for your support along the way.
Thomas Barragry
Nice job guys! Hearing great things about Langtail from the team at Ceros! Good luck with everything post launch!
Ryan Hefner
@thomas_barragry Thank you, Thomas!! We've learned a lot from the Ceros team and greatly appreciate you guys ๐Ÿ™‚
Petr Brzek
@thomas_barragry Thanks, we are very happy to be able to collaborate with Ceros and together improve Langtail. ๐Ÿš€
Martin Duris
@thomas_barragry Thanks Thomas!
Hitesh Suthar
A much-needed playground before the production. Best of luck with your launch! Congratulations.
Ryan Hefner
@hiteshsuthar Thank you, Hitesh!
Petr Brzek
@hiteshsuthar Thanks, we put a lot of effort into our Playground. ๐Ÿš€
Martin Duris
@hiteshsuthar Thank you, Hitesh! Have you tried Deployments yet?