Langfuse vs Promty
Langfuse vs Promty, compared side by side on 13 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 Promty on 26/100.
Where each one leads
Langfuse
- our overall score: 55/100 against 26/100
- agent readiness: 43/100 against 34/100
Promty
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Langfuse | Promty |
|---|---|---|
| What it is | Open-source LLM engineering platform for debugging, monitoring, and improving production-grade LLM applications. | Instantly transforms rambling thoughts into polished prompts for every AI tool. |
| Category | MLOps, Observability, Developer Tools, API Platform | Prompt Engineering, Automated Prompt Engineering, AI Tool, Generative AI |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | 2022 | Not published |
| Headquarters | Berlin, Germany | Not published |
| Status | Active | Active |
Size, funding and growth
| Measure | Langfuse | Promty |
|---|---|---|
| Employees | 21 | Not published |
| Headcount growthLast 12 months | +81.0% | Not published |
| Total funding | $2.5M | Not published |
| Latest round | Seed | Not published |
| LinkedIn followers | 13,143 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Langfuse | Promty |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 55/100 | 26/100 |
| Traction | 45/100 | Not published |
| Team | 70/100 | Not published |
| Search visibility | 58/100 | 13/100 |
| Quality | 58/100 | 40/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (43/100) | F (34/100) |
| Domain ratingLink authority, 0-100 | 79/100 | Not published |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Langfuse | Promty |
|---|---|---|
| Hosting | Vercel | Vercel |
| CDN | Vercel | Vercel |
| Frameworks | Next.js, Tailwind CSS | Next.js, Tailwind CSS |
| Analytics | Google Tag Manager, Segment | Not detected |
| Support stack | HubSpot, Crisp | Not detected |
| Open source | Yes | No |
Product and pricing
| Measure | Langfuse | Promty |
|---|---|---|
| Key features | Full Context Tracing, Cost & Latency Monitoring, Output Quality Evaluation, Prompt Management & Experimentation, Testing & Benchmarking | Not published |
Langfuse vs Promty: common questions
Which is better, Langfuse or Promty?
On our 0-100 score Langfuse rates higher (55/100 against 26/100). 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 13 data points above: read the rows that match what you are buying for.
How do Langfuse and Promty compare on the numbers?
Langfuse leads on our overall score (55/100 against 26/100), agent readiness (43/100 against 34/100).
Read the full Langfuse review and pricing or the Promty review and pricing. You can also browse other Langfuse alternatives we track.