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Description
Langfuse is a free and open-source LLM engineering platform that helps teams to debug, analyze, and iterate their LLM Applications.
Observability: Incorporate Langfuse into your app to start ingesting traces.
Langfuse UI : inspect and debug complex logs, user sessions and user sessions
Langfuse Prompts: Manage versions, deploy prompts and manage prompts within Langfuse
Analytics: Track metrics such as cost, latency and quality (LLM) to gain insights through dashboards & data exports
Evals: Calculate and collect scores for your LLM completions
Experiments: Track app behavior and test it before deploying new versions
Why Langfuse?
- Open source
- Models and frameworks are agnostic
- Built for production
- Incrementally adaptable - Start with a single LLM or integration call, then expand to the full tracing for complex chains/agents
- Use GET to create downstream use cases and export the data
Description
Vellum is an intelligent personal assistant platform that automates daily tasks and enhances productivity across multiple devices and applications. It enables users to create a unified assistant that works across web apps, macOS, iOS, and command-line interfaces. The platform can manage tasks such as cleaning inboxes, summarizing conversations, scheduling events, and handling communications. Vellum assistants are designed with persistent memory, allowing them to learn user preferences, routines, and working styles over time. This memory system helps deliver more personalized and context-aware assistance. The platform integrates with tools like Slack, email, Telegram, and other communication channels for seamless workflow management. Vellum also supports task automation such as app development, meeting coordination, and real-time updates. It prioritizes security by storing credentials in secure environments like local keychains or isolated vaults. Users maintain full control over permissions and how much autonomy their assistant has. The system ensures that personal data is not used as training data, preserving user privacy. Vellum helps users save time and focus on high-value activities by automating routine processes.
API Access
Has API
Yes
API Access
Has API
Yes
Integrations
Claude
Yes
Claude Opus 4.7
No
Claude Sonnet 4.6
No
Deepgram
No
ElevenLabs
No
Flowise
Yes
GitHub
No
Lamatic.ai
Yes
LangChain
Yes
Linear
No
Integrations
Claude
Yes
Claude Opus 4.7
Yes
Claude Sonnet 4.6
Yes
Deepgram
Yes
ElevenLabs
Yes
Flowise
No
GitHub
Yes
Lamatic.ai
No
LangChain
No
Linear
Yes
Pricing Details
$29/month
Generous free tier and Pro Plans starting at USD 29/month.
Langfuse is open source so you will always be able to host the software yourself at no cost.
Langfuse is open source so you will always be able to host the software yourself at no cost.
Free Trial
Yes
Free Version
Yes
Pricing Details
No price information available.
Free Trial
No
Free Version
No
Deployment
Web-Based
Yes
On-Premises
Yes
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
Yes
iPad App
Yes
Android App
No
Windows
No
Mac
Yes
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
Yes
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
Langfuse
Founded
2023
Country
Germany
Website
langfuse.com
Vendor Details
Company Name
Vellum AI
Founded
2023
Country
United States
Website
www.vellum.ai/