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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
White Circle serves as a comprehensive AI control platform that seamlessly integrates visibility, safety, and performance enhancement for AI systems by merging testing, safeguarding, monitoring, and refinement into one cohesive layer. Functioning as a centralized management system, it operates between AI models and their users, scrutinizing each input and output in real-time to guarantee adherence to established safety, security, and quality guidelines. Additionally, it boasts automated stress-testing features that replicate challenging prompts and potential real-world attack scenarios, enabling teams to identify vulnerabilities such as hallucinations, prompt injections, data breaches, and policy infringements prior to deployment. Furthermore, the platform encompasses a protective layer that applies custom regulations through low-latency guardrails, instantly blocking, rewriting, or flagging unsafe outputs while also curbing the misuse of tools, unauthorized actions, or the risk of exposing sensitive data. With its robust capabilities, White Circle not only enhances the reliability of AI systems but also fosters trust among users, ensuring a more secure operational environment.
API Access
Has API
Yes
API Access
Has API
No
Integrations
Claude
Yes
Dograh
Yes
Flowise
Yes
Hugging Face
Yes
Lamatic.ai
Yes
LangChain
Yes
LiteLLM
Yes
LlamaIndex
Yes
Mirascope
Yes
Netguru Omega
Yes
Integrations
Claude
No
Dograh
No
Flowise
No
Hugging Face
No
Lamatic.ai
No
LangChain
No
LiteLLM
No
LlamaIndex
No
Mirascope
No
Netguru Omega
No
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
Free
Free Trial
No
Free Version
Yes
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
No
iPad App
No
Android App
No
Windows
No
Mac
No
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
White Circle
Founded
2025
Country
France
Website
whitecircle.ai/