Langfuse vs Reka
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 Reka
| Detail | Langfuse | Reka |
|---|
| What it does | Open Source Agent Evals & Observability
| Breakthrough intelligence for the real world
|
|---|
| Stage | Established
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | DE
| Not given
|
|---|
| Pricing model | freemium
| Not given
|
|---|
| 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
| - Video captioning and detection
- Image and video embeddings
- Question answering on visual content
- Video search and retrieval
- Audio transcription and analysis
- Real-time model inference
- Model distillation for efficiency
- Model quantization
|
|---|
| 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
| - Natively multimodal architecture processing video, image, audio, and text in one model
- Real-time inference optimized for existing hardware
- Scalable video infrastructure for reasoning beyond detection
- Enterprise deployment infrastructure with customization options
|
|---|
| 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) | 79 ● no change since last check | 66 ● no change since last check |
|---|
| Trust Flow (Majestic) | 35 | 28 |
|---|
| Citation Flow (Majestic) | 54 | 44 |
|---|
| Referring domains (Majestic) | 6114 | 1554 |
|---|
3 details filled in for both companies.
More alternatives to Langfuse More alternatives to Reka