Open WebUI vs Weights & Biases
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)
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| Metric | ||
|---|---|---|
| Website | openwebui.com → | wandb.ai → |
| Description | Open-source ChatGPT alternative. Self-hosted UI for LLMs. | ML experiment tracking and model management platform. |
| Total Disclosed Funding Source: Crunchbase / manual researchUpdates: Weekly | - | $250M✓ |
| Last Funding | Not available | Strategic Investment Nov 2023 |
| Developer Adoption | ||
| Momentum ⓘ | 36Moderate✓ | 32 |
| npm Registry Downloads (30d) Source: npm registryUpdates: DailyNote: Includes all package installations including CI/CD pipelines and mirrors | - | - |
| PyPI Registry Downloads (30d) Source: PyPI (pypistats.org)Updates: DailyNote: Includes all package installations including CI/CD pipelines and mirrors | 9.0M | 13.4M✓ |
| PyPI Trend (30d) | +40% | +4% |
| Total Downloads (30d) Source: npm + PyPI registriesUpdates: DailyNote: Sum of npm and PyPI; excludes other package managers | 9.0M+40% | 13.4M+4%✓ |
| Active Contributors (30d) Source: GitHub APIUpdates: DailyNote: Tracks designated public repos per company, not all company GitHub activity | 39✓ | 13 |
| Contributors Trend (30d) | +129% | - |
| Code Adoption (repos) Source: ecosyste.ms Packages APIUpdates: DailyNote: Approximate count; excludes forks | 0 | 9.3K✓ |
| HN Discussion Share Source: Hacker News (Algolia API)Updates: DailyNote: Share of HN mentions within the company's primary category | 0.2% of HN mentions | 0.2% of HN mentions |
| Status | Private | Private |
| HN Mentions (30d) Source: Hacker News (Algolia API)Updates: Daily | 11✓ | 3 |
| GitHub Stars Source: GitHub APIUpdates: DailyNote: Stars are bookmarks — a popularity signal, not a usage indicator | 127.0K✓ | 10.9K |
| Founded | 2023 | 2018 |
| Primary Category | ||
| Data Last Updated | ||
Key Differences
For production adoption: Weights & Biases leads in package downloads with 13.4M per month compared to 9.0M for Open WebUI.
For growth trajectory: Open WebUI has 127.0K GitHub stars versus 10.9K for Weights & Biases. Open WebUI received 11 Hacker News mentions in the last 30 days compared to 3 for Weights & Biases.
For longevity/risk: Weights & Biases has raised $250M in total disclosed funding. Weights & Biases's most recent round was Strategic Investment. Open WebUI attracted 39 active contributors in the last 30 days compared to 13 for Weights & Biases. Open WebUI operates in Foundation Models while Weights & Biases focuses on AI Infrastructure.
Bottom Line
Weights & Biases leads on developer adoption with 13.4M 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.
Open WebUI: 9.0M downloads/mo (+40%), 127.0K GitHub stars, 39 active contributors vs
Weights & Biases: 13.4M downloads/mo, 10.9K GitHub stars, 13 active contributors, $250M funded
Source: AI-Buzz. Updated daily from npm, PyPI, GitHub, and Hacker News.
- •Open WebUI has 9.0M downloads/mo vs Weights & Biases at 13.4M
- •Open WebUI has 127.0K GitHub stars (12x more)
- •Open WebUI has 39 active contributors (30d) (3x Weights & Biases)
- •Weights & Biases has raised $250M in disclosed funding; no funding data for Open WebUI
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