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Amplitude vs Langfuse
Langfuse targets LLM observability, not general product analytics and experimentation.
AmplitudeDigital analytics platform for product teams.png?auto=compress&fit=max&w=96)
LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️♂️Which to pick
Pick Amplitude if you want…
- AI-enhanced product analytics
- Integrations with Claude, Cursor or GitHub Copilot (on Amplitude's list, not Langfuse's)
Pick Langfuse if you want…
- LLM observability & analytics
- Open-source code (langfuse/langfuse on GitHub)
- Integrations with Python, TypeScript or Go (on Langfuse's list, not Amplitude's)
Side by side
- What it is
- Amplitude:Amplitude is a digital analytics platform that adds AI agents, feedback, and experimentation for product teams.
- Langfuse:Langfuse is an open-source platform for tracing, evaluating and monitoring LLM applications and AI agents.
- Best for
- Amplitude:AI-enhanced product analytics
- Langfuse:LLM observability & analytics
- Who it’s for
- Amplitude:Product managers, growth teams, and engineers building data-driven products
- Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
- Pricing
- Amplitude:Freemium
- Langfuse:Freemium
- Plans
- Amplitude:Free $0 · Plus Starts at $0 per month
- Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
- Open source
- Amplitude:—
- Langfuse:Yes, 35,097 GitHub stars
- Works with
- Amplitude:Claude, Cursor, GitHub Copilot, Replit, Codex, Gemini, Figma Make
- Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
Amplitude features
- AI Agents & MCP. Ask natural-language questions about product data and get AI-generated insights across all Amplitude capabilities.
- Product & Marketing Analytics. Track events, funnels, cohorts, and revenue metrics with unlimited seats.
- Session Replay & Heatmaps. Record user sessions and visualize interactions to identify friction points.
- Feature Experimentation. Run A/B/n tests, multi-armed bandits and track feature adoption across cohorts.
- AI Feedback & Surveys. Collect user comments and automatically turn them into actionable insights.
- Agent Analytics. Measure the impact of AI agents on retention, revenue and growth.
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.
Amplitude vs Langfuse FAQ
Is Amplitude or Langfuse free?+
Amplitude has a free plan and paid plans. Langfuse has a free plan (Hobby); paid plans start at $29/month (Core).
Is Amplitude or Langfuse open source?+
Langfuse is open source (langfuse/langfuse on GitHub). DevHunt has no public source repository on record for Amplitude.
Do Amplitude and Langfuse integrate with the same tools?+
Their integration lists don't overlap: Amplitude lists Claude, Cursor, GitHub Copilot, Replit and 3 more; Langfuse lists Python, TypeScript, Go, Java and 10 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.