Langfuse vs OpenHermit
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Langfuse compared with OpenHermit
| Detail | L
Langfuse | 
OpenHermit |
|---|
| What it does | Open Source Agent Evals & Observability
| Make your website usable by AI agents and see everything they do
|
|---|
| Stage | Established
| Startup
|
|---|
| Founded | Not given
| 2026
|
|---|
| Based in | DE
| CH
|
|---|
| Pricing model | Freemium
| Freemium
|
|---|
| Pricing | Not given
| Not given
|
|---|
| Key features | - Hierarchical traces capture every LLM call, tool invocation, and retrieval step
- LLM-as-a-judge, heuristic functions, or human review evaluations
- Prompt management with one-click deployments and rollbacks
- Playground to test prompts on real production inputs and compare models
- Experiments with test cases and side-by-side comparison
- Human annotation and collaborative human-in-the-loop workflows
- Cost and latency monitoring with dashboards and alerts
- REST APIs and Query SDK for data access
- Langfuse Assistant to automate the AI engineering loop
| - Automatic WebMCP injection for forms and actions
- AI agent analytics and observability
- Agent instructions, guardrails, and routing
- Automatic form and action detection
- One-script install with zero configuration
- Real-time agent interaction tracking
- WebMCP protocol implementation
- Custom agent prompts and behavior configuration
|
|---|
| What makes it different | - MIT licensed open source platform with no data lock-in
- Enterprise scale architecture handling billions of monthly events
- Works with any language and framework with no framework lock-in
- Async by default so tracing never blocks your application
| - One script tag installation with zero configuration required
- Built on open standard WebMCP, not proprietary technology
- Real-time observability of AI agent activity and conversions
- No website rebuild required to make forms agent-ready
- Dashboard control for agent instructions and guardrails
|
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| Free plan | Not given
| Not given
|
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| Open source | Not given
| Not given
|
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| Platforms | Not given
| Not given
|
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| Public API | Not given
| Not given
|
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| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 80 ▲ +1 (up) since last check | 23 ▼ −1 (down) since last check |
|---|
| Trust Flow (Majestic) | 35 | 5 |
|---|
| Citation Flow (Majestic) | 54 | 26 |
|---|
| Referring domains (Majestic) | 6114 | 80 |
|---|
6 details filled in for both companies.
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