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Langfuse vs OpenAssistantGPT

Offers observability and analytics for LLM apps rather than chatbot creation itself.
LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️‍♂️OpenAssistantGPTBuild a smart RAG chatbot with the OpenAI Assistant API. Embed it to your website let it answer your users questions, and more.

Side by side

What it is
Langfuse:Langfuse is an open-source platform for tracing, evaluating and monitoring LLM applications and AI agents.
OpenAssistantGPT:OpenAssistantGPT lets you build and embed a no-code RAG chatbot powered by OpenAI assistants.
Best for
Langfuse:LLM observability & analytics
OpenAssistantGPT:No-code AI chatbots with website crawling
Who it’s for
Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
OpenAssistantGPT:Product teams, support engineers, and developers who need a quick AI chatbot without coding.
Pricing
Langfuse:Freemium
OpenAssistantGPT:Freemium
Plans
Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
OpenAssistantGPT:Free Plan $0
Open source
Langfuse:Yes, 35,097 GitHub stars
OpenAssistantGPT:Yes, 430 GitHub stars
Works with
Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
OpenAssistantGPT:—
DevHunt upvotes
Langfuse:89
OpenAssistantGPT:10
Launched on DevHunt
Langfuse:Jan 2023
OpenAssistantGPT:Feb 2025

Langfuse features

  • Hierarchical Traces. Capture every LLM call, tool invocation and retrieval step with filters for user, session, cost and latency.
  • Prompt Management. Version, fetch, release and cache prompts separately from code with one-click deployments.
  • Evaluation Engine. Run LLM-as-judge, heuristic or human-review evaluations on production data or experiments.
  • Experiments & Datasets. Define test cases, run experiments and create golden datasets for continuous improvement.
  • Dashboards & Alerts. Monitor cost, latency and quality via custom dashboards and automated alerts.
  • Human Annotation. Collaborative human-in-the-loop workflows with annotation queues.
  • Extensive Integrations. Supports Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift and 100+ agent frameworks and model providers.
  • Self-hosted & Cloud Options. Available as hosted SaaS or self-hosted under MIT license.
Langfuse on DevHunt →Alternatives

OpenAssistantGPT features

  • Website Crawling. Provide a URL and the platform automatically crawls the site to feed the chatbot.
  • OpenAI Model Support. Choose GPT-4, GPT-3.5 or GPT-4o as the underlying assistant model.
  • SAML/SSO Authentication. Secure private chatbots with enterprise SAML/SSO login.
  • AI Agent Actions. Call external APIs from the chatbot using configurable URL parameters.
  • File Attachments. Upload CSV, XML, images, etc., for the bot to analyze within the conversation.
  • Lead Collection. Capture user contact info and questions for sales or support follow-up.
OpenAssistantGPT on DevHunt →Alternatives

Based on each tool's website and DevHunt data. Details may change; check the official sites.