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Langfuse vs Open Source Software

Observability and analytics for LLM apps, unrelated to directory listings.
LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️‍♂️Open Source SoftwareUnleash Possibilities: Open Source Alternatives at Your Fingertips

Side by side

What it is
Langfuse:Langfuse is an open-source platform for tracing, evaluating and monitoring LLM applications and AI agents.
Open Source Software:A platform to showcase open-source projects and get instant SEO-boosted listings.
Best for
Langfuse:LLM observability & analytics
Open Source Software:Instant SEO-boosted directory listings
Who it’s for
Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
Open Source Software:Open-source maintainers seeking visibility and backlinks.
Pricing
Langfuse:Freemium
Open Source Software:Paid
Plans
Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
Open Source Software:—
Open source
Langfuse:Yes, 35,097 GitHub stars
Open Source Software:—
Works with
Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
Open Source Software:—
DevHunt upvotes
Langfuse:89
Open Source Software:0
Launched on DevHunt
Langfuse:Jan 2023
Open Source Software:Jan 2024

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

Open Source Software features

  • DoFollow backlink. Provides a permanent do-follow link for SEO benefits.
  • Newsletter mention. Includes the project in a newsletter sent to all subscribers.
  • Boosted directory position. Places the listing higher in the directory for more exposure.
  • One-click listing. Adds the project to 100 web directories with a single action.
Open Source Software on DevHunt →Alternatives

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