Langfuse vs Open WebUI
Open WebUI leads in active contributors with 39 (30d). Updated daily with live metrics.
Downloads (30d)
Disclosed Funding
GitHub Stars
HN Mentions (30d)
Momentum (0-100)
← Scroll to compare →
| Metric | ||
|---|---|---|
| Website | langfuse.com → | openwebui.com → |
| Description | Open-source LLM observability platform. Monitor and debug AI applications. | Open-source ChatGPT alternative. Self-hosted UI for LLMs. |
| Total Disclosed Funding Source: Crunchbase / manual researchUpdates: Weekly | $5M✓ | - |
| Last Funding | Seed May 2024 | Not available |
| Developer Adoption | ||
| Momentum ⓘ | 37Moderate✓ | 36Moderate |
| npm Registry Downloads (30d) Source: npm registryUpdates: DailyNote: Includes all package installations including CI/CD pipelines and mirrors | 3.3M✓ | - |
| npm Trend (30d) | +8% | - |
| PyPI Registry Downloads (30d) Source: PyPI (pypistats.org)Updates: DailyNote: Includes all package installations including CI/CD pipelines and mirrors | 6.8M | 9.0M✓ |
| PyPI Trend (30d) | +19% | +40% |
| Total Downloads (30d) Source: npm + PyPI registriesUpdates: DailyNote: Sum of npm and PyPI; excludes other package managers | 10.0M+15%✓ | 9.0M+40% |
| Active Contributors (30d) Source: GitHub APIUpdates: DailyNote: Tracks designated public repos per company, not all company GitHub activity | 28 | 39✓ |
| Contributors Trend (30d) | - | +129% |
| npm Dependents Source: Libraries.io APIUpdates: WeeklyNote: Counts direct and dev dependents | 72✓ | - |
| Code Adoption (repos) Source: ecosyste.ms Packages APIUpdates: DailyNote: Approximate count; excludes forks | 4✓ | 0 |
| HN Discussion Share Source: Hacker News (Algolia API)Updates: DailyNote: Share of HN mentions within the company's primary category | 2% of HN mentions | 0.2% of HN mentions |
| Status | Private | Private |
| HN Mentions (30d) Source: Hacker News (Algolia API)Updates: Daily | 31✓ | 11 |
| GitHub Stars Source: GitHub APIUpdates: DailyNote: Stars are bookmarks — a popularity signal, not a usage indicator | 23.1K | 127.0K✓ |
| Founded | 2023 | 2023 |
| Primary Category | ||
| Data Last Updated | ||
Key Differences
For production adoption: Langfuse is depended on by 72 packages. Langfuse leads in package downloads with 10.0M per month compared to 9.0M for Open WebUI.
For growth trajectory: Open WebUI has 127.0K GitHub stars versus 23.1K for Langfuse. Langfuse received 31 Hacker News mentions in the last 30 days compared to 11 for Open WebUI.
For longevity/risk: Langfuse has raised $5M in total disclosed funding. Langfuse's most recent round was Seed. Open WebUI attracted 39 active contributors in the last 30 days compared to 28 for Langfuse. Langfuse operates in AI Infrastructure while Open WebUI focuses on Foundation Models.
Bottom Line
Langfuse leads on developer adoption with 10.0M monthly package downloads. Open WebUI counters with 127.0K GitHub stars, reflecting strong developer awareness. For a deeper look, visit each company's full profile for trend charts, funding rounds, and community sentiment data.
Langfuse: 10.0M downloads/mo (+15%), 23.1K GitHub stars, 28 active contributors, 72 dependents, $5M funded vs
Open WebUI: 9.0M downloads/mo (+40%), 127.0K GitHub stars, 39 active contributors
Source: AI-Buzz. Updated daily from npm, PyPI, GitHub, and Hacker News.
- •Langfuse has 10.0M downloads/mo vs Open WebUI at 9.0M
- •Open WebUI has 127.0K GitHub stars (5x more)
- •Active contributors (30d): Langfuse 28 vs Open WebUI 39
- •Langfuse has raised $5M in disclosed funding; no funding data for Open WebUI
Select Companies to Compare
Related Comparisons
Weekly AI Intelligence
Which AI companies are developers actually adopting? We track npm and PyPI downloads for hundreds of companies. Get the biggest shifts delivered weekly.