Langfuse vs Mabl
Langfuse vs Mabl, compared side by side on 23 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Langfuse is on 55/100 and Mabl on 61/100.
Where each one leads
Langfuse
- domain rating: 79/100 against 69/100
Mabl
- our overall score: 61/100 against 55/100
- headcount: 115 against 21
- funding raised: $70.0M against $2.5M
At a glance
| Measure | Langfuse | Mabl |
|---|---|---|
| What it is | Open-source LLM engineering platform for debugging, monitoring, and improving production-grade LLM applications. | AI-native, low-code test automation platform for software quality engineering. |
| Category | MLOps, Observability, Developer Tools, API Platform | MLOps, Developer Tools, API Platform, Enterprise Software |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | 2022 | 2016 |
| Headquarters | Berlin, Germany | Boston, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Langfuse | Mabl |
|---|---|---|
| Employees | 21 | 115 |
| Headcount growthLast 12 months | +81.0% | Not published |
| Total funding | $2.5M | $70.0M |
| Latest round | Seed | Series C |
| LinkedIn followers | 13,143 | 11,583 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Langfuse | Mabl |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 55/100 | 61/100 |
| Traction | 45/100 | 59/100 |
| Team | 70/100 | 70/100 |
| Search visibility | 58/100 | 33/100 |
| Quality | 58/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (43/100) | D (47/100) |
| Domain ratingLink authority, 0-100 | 79/100 | 69/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Langfuse | Mabl |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Vercel | Cloudflare |
| Frameworks | Next.js, Tailwind CSS | Bootstrap |
| Analytics | Google Analytics 4, Google Tag Manager, Segment | Google Tag Manager |
| Support stack | HubSpot | Intercom |
| Open source | Yes | No |
Product and pricing
| Measure | Langfuse | Mabl |
|---|---|---|
| Key features | Full Context Tracing, Cost & Latency Monitoring, Output Quality Evaluation, Prompt Management & Experimentation, Testing & Benchmarking | Not published |
Langfuse vs Mabl: common questions
Which is better, Langfuse or Mabl?
On our 0-100 score Mabl rates higher (61/100 against 55/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 23 data points above: read the rows that match what you are buying for.
How do Langfuse and Mabl compare on the numbers?
Langfuse leads on domain rating (79/100 against 69/100). Mabl leads on our overall score (61/100 against 55/100), headcount (115 against 21), funding raised ($70.0M against $2.5M).
Read the full Langfuse review and pricing or the Mabl review and pricing. You can also browse other Langfuse alternatives we track.

