
Helicone AI
LangSmith
LangChain
Portkey
Braintrust.dev
PromptLayer
LastMile AI
Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications.

Contextfy.com.br
Harbor ML
Glean.co
integrate.ai
Machine learning at scale
Machine Learning Playground
ML ART
Data Processing Infra & ETL for Generative AI applications

Which is more popular?
Based on our record, Langfuse seems to be more popular. 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 | contextdata.ai |
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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 Context Data yet.
What each product offers, as listed by its team.


Possible disadvantages
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An editorial look at what each product does well and who it suits.


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Overall verdict
Why this product is good
Recommended for
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 Context Data. 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 / about 16 hours 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 / 7 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 / 16 days ago
Tracking Context Data since May 2024.
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Open-source LLM Observability for Developers
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Build and deploy LLM applications with confidence
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High-quality multimodal datasets, AI data annotation, and data infrastructure powering the next generation of artificial intelligence models.
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Framework for building applications with LLMs through composability
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Personalized learning for educational video lessons
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