Langfuse Launch Week #2

A week dedicated to unlocking model capabilities and integrating Langfuse into your development loop

Clemens Rawert

Marc Klingen

Max Deichmann

We are excited to announce Langfuse Launch Week #2!

Starting on Monday, November 18th, 2024, we’ll unveil a major upgrade to the Langfuse platform every day until Friday. We’re topping it off with a Product Hunt launch on Friday and a Virtual Town Hall on Wednesday.

Star us on GitHub and follow us on Twitter for daily updates.

Want to see what we have launched in LW1 back in April to get a taste of what’s coming? Check out the blog post.

Launch Week Focus

This week, we’re focusing on supporting the next generation of models. As AI models evolve Langfuse is evolving too. We’re integrating Langfuse deeply into your development loop with end-to-end prompt engineering workflow tooling tailored for product development teams. Stay tuned for the exciting updates ahead!

Launches

🚀   Day 0: Prompt Management for Vercel AI SDK

import { generateText } from "ai";
import { Langfuse } from "langfuse";
 
const langfuse = new Langfuse();
 
// fetch prompt from Langfuse Prompt Management
const fetchedPrompt = await langfuse.getPrompt("my-prompt");
 
const result = await generateText({
  model: openai("gpt-4o"),
  prompt: fetchedPrompt.prompt, // use prompt
  experimental_telemetry: {
    isEnabled: true, // enable tracing
    metadata: {
      langfusePrompt: fetchedPrompt.toJSON(), // link trace to prompt version
    },
  },
});

Langfuse Prompt Management now integrates natively with the Vercel AI SDK. Version and release prompts in Langfuse, use them via Vercel AI SDK, monitor metrics in Langfuse.

This helps you answer questions like:

• Which prompt version caused a particular bug?
• What is the average latency and cost impact of a prompt version?
• Which prompt version is the most used?

See the changelog for more details.

⚖️   Day 2

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🎨   Day 3

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💰   Day 4

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🧪   Day 5

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Extras

List of additional features that were released this week:

• llms.txt: Easily use the Langfuse documentation in Cursor and other LLM editors via the new llms.txt file.

Don’t Miss Out

GitHub

⭐️ Star us on GitHub & see all of our releases!

Channels

Twitter and LinkedIn will be our main channels for launching a new feature every day.

You can subscribe to our mailing list for daily updates:

Get updates

Wednesday: Virtual Town Hall

You’re invited to our virtual town hall where we’ll demo the new features and discuss how they integrate into your development workflow. We will also answer your questions and talk about the future of Langfuse (especially V3).

• When: Wednesday, November 20, 2024, at 10 am PT / 7pm CET
• Where: https://lu.ma/c7zsbc3b

Friday: Product Hunt Launch

We are launching on Product Hunt for our third time on Friday, November 22nd. Stay tuned for the biggest launch of the week and get notified here.

Chat with the community on Discord

Join the community of over 2,000 members on Discord for banter and to talk directly to the team.

Learn More About Langfuse