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Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications.

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Specify is the Design Data Platform for your design & dev teams:🎨 Collect your design tokens and assets from Figma🤖 Store them in a single source of truth⚡️ Distribute your brand with custom delivery pipelinesGet started for free → specifyapp.com

Which is more popular?
Based on our record, Langfuse should be more popular than Specify App. It has been mentioned 35 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | langfuse.com | specifyapp.com |
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| Company | Startup from the United States | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Langfuse is an open-source LLM engineering platform designed to empower developers by providing insights into user interactions with their LLM applications. We offer tools that help developers understand usage patterns, diagnose issues, and improve application performance based on real user data....
No description of Specify App yet.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
Langfuse in two minutes
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Langfuse and Specify App. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Ten free AI prompt tools in 2026 across four categories: prompt generators (SurePrompts, Anthropic Console, OpenAI Playground), libraries (AIPRM, PromptHero, FlowGPT, Awesome ChatGPT Prompts), open-source workflow...
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Recommendations tracked on public social media and blogs since March 2021.


Langfuse is an open-source LLM engineering platform specialized for AI applications. It provides:. - Source: dev.to / 13 days ago
Langfuse is an open-source observability and analytics platform for LLM applications. Its open-source nature is a significant draw for companies that prefer to self-host or want to avoid vendor lock-in. - Source: dev.to / 19 days ago
We have researched and experimented with several AI evaluation platforms, including Arize Phoenix, Microsoft Foundry, and Langfuse. After evaluating them against our requirements and roadmap, we shortlisted Microsoft Foundry and Langfuse... - Source: dev.to / 28 days ago
Specify if also a good all-in-one tool I just found yesterday https://specifyapp.com/. Source: over 3 years ago
Today quite some companies are already tackling similar problems. Talking of Knapsack.cloud, Backlight.dev, Specify, Supernova and many more, here. They all deliver value to simplify workflows for setup, integration, documentation and... - Source: dev.to / almost 4 years ago
Https://story.to.design/ Https://specifyapp.com/. - Source: dev.to / about 4 years ago
When comparing Langfuse and Specify App, you can also consider the following products.

Open-source LLM Observability for Developers
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Build and deploy LLM applications with confidence
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Backlight is a unique collaborative platform to build Design Systems code-side.📐 Design tokens🧩 Component code and stories📖 Documentation site📦 Managed release to npmEverything in one place, in a true collaborative workspace.Try 👉 backlight.dev
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Framework for building applications with LLMs through composability
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Create beautiful and consistence user interface with ease
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