Langfuse vs Terminus
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 Terminus
| Detail | L
Langfuse | 
Terminus |
|---|
| What it does | Open Source Agent Evals & Observability
| Infrastructure to build and run apps, agents, skills and services
|
|---|
| Stage | Established
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | DE
| Not given
|
|---|
| Pricing model | Freemium
| Free
|
|---|
| 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
| - CLI for local development and deployment
- Apps with offline-capable records that sync across devices
- Long-running agents working 24/7
- Reusable skills that work across platforms
- Hosted and external services integration
- Free hosting
- Local testing with terminus dev simulator
- Background jobs, schedules and webhooks
- Support for TypeScript, Rust, Python, Go, C and C++ services
- Shared spaces for team collaboration
|
|---|
| 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
| - Lego-style composable components that connect together
- Free hosting forever for all creations
- Unified workflow from local development to published releases
|
|---|
| Free plan | Not given
| Not given
|
|---|
| Open source | Not given
| Not given
|
|---|
| Platforms | Not given
| Not given
|
|---|
| Public API | Not given
| Not given
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 80 ▲ +1 (up) since last check | 3 ▲ +1 (up) since last check |
|---|
| Trust Flow (Majestic) | 35 | 5 |
|---|
| Citation Flow (Majestic) | 54 | 26 |
|---|
| Referring domains (Majestic) | 6114 | 4 |
|---|
4 details filled in for both companies.
More alternatives to Langfuse More alternatives to Terminus