Langfuse
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LangSmith
LangChain
Openlayer
Braintrust.dev
Portkey
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UserTesting.com
TestRail
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Hotjar
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PractiTest
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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. By integrating seamlessly into existing workflows, Langfuse streamlines the process of monitoring, debugging, and optimizing LLM applications. Our platform's robust documentation and active community support make it easy for developers to leverage Langfuse for enhancing their LLM projects efficiently. Whether you're troubleshooting interactions or iterating on new features, Langfuse is committed to simplifying your LLM development journey.
UserTesting enables every organization to deliver the best customer experience powered by human insight. With UserTestingโs on-demand Human Insight Platform, companies across industries make accurate customer-first decisions at every level, at the speed business demands.
Langfuse
UserTesting.comBased on our record, UserTesting.com should be more popular than Langfuse. It has been mentiond 101 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
In this project we will build a Python banking assistant agent using Strands Agents and make it observable and continuously evaluated using Langfuse โ step by step. - Source: dev.to / 11 days ago
Langfuse is the open-source standard for LLM observability. It traces every LLM interaction โ prompts, completions, latency, token usage, cost โ and provides the tooling to debug, evaluate, and optimize LLM applications in production. Think of it as "Datadog for LLM calls" with a focus on prompt engineering workflows. - Source: dev.to / 30 days ago
You're monitoring production traffic. You need Langfuse / Phoenix / Helicone / Braintrust for that. Online eval is a different problem class: implicit feedback, drift detection, hallucination rates on your data, not on HellaSwag. - Source: dev.to / about 1 month ago
Gateway or proxy attribution. A reverse proxy in front of the model-provider API records the request, computes the cost, and exposes per-customer breakdowns. Open-source options include Helicone, LiteLLM, Langfuse, and OpenLLMetry. Hosted equivalents serve as the AI cost observability layer for teams that want centralized visibility: LangSmith, Datadog LLM Observability, Arize Phoenix. Adds a network hop.... - Source: dev.to / about 1 month ago
Same approach works with Langfuse, Phoenix, Braintrust, or your existing OTel pipeline โ the metadata.userId pattern is the universal part. - Source: dev.to / about 2 months ago
Lookback, Usability Hub (now called Lyssna) and Validately but have been spoiled by former employers who had the budget for usertesting.com so I'm pretty out of the loop on low-budget options. TIA! Source: over 2 years ago
I need to recruit 5-6 parents/grandparents for a study and I'm having trouble finding a company I can use (aside from usertesting.com since they tailor to large companies and I'm doing freelance work). Every company I've come across offers recruitment for surveys, but not interviews. Source: over 2 years ago
Anyone else having problems with the iOS UserTesting App? Mine just opens and shows the logo, and stays there. I can see multiple tests available on usertesting.com, but can't open the app. I have a iPhone 13, updated to 17.1. Source: over 2 years ago
User Testing Services: Platforms like UserTesting Human Insight Platform | Improve Customer Experience (CX) allow you to get feedback from real users who provide insights on usability, design, and user experience. Source: almost 3 years ago
Try usertesting.com, it fits into your schedule better. Source: about 3 years ago
Helicone AI - Open-source LLM Observability for Developers
TestRail - TestRail provides comprehensive test case management for software testing. Organize your testing, boost productivity, get real-time insights, and track progress toward milestones. Integrates with leading issue tracking and test automation tools.
LangSmith - Build and deploy LLM applications with confidence
Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.
LangChain - Framework for building applications with LLMs through composability
Hotjar - The #1 Leader in Heatmaps, Recordings, Surveys & More. Sign up for a 15-day free trial and start learning from real user behavior today!