Arize AI vs vLLM
vLLM leads in package downloads at 8x; vLLM leads in active contributors with 342 (30d); both compete in AI Infrastructure. Updated daily with live metrics.
Key Differences
vLLM leads in package downloads with 5.6M per month compared to 663.4K for Arize AI. vLLM has 72.3K GitHub stars versus 8.8K for Arize AI. vLLM attracted 342 contributors in the last 30 days compared to 25 for Arize AI.
Arize AI has raised $61M in total funding. Arize AI's most recent round was Series B. both companies operate in the AI Infrastructure category.
vLLM received 86 Hacker News mentions in the last 30 days compared to 1 for Arize AI. vLLM accounts for 5.2% of Hacker News discussion in its category.
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Arize AI: 663.4K downloads/mo, 8.8K GitHub stars, 25 active contributors, $61M funded vs
vLLM: 5.6M downloads/mo, 72.3K GitHub stars, 342 active contributors, 3 dependents
Source: AI-Buzz AI company database.
- •vLLM leads in package downloads with 5.6M/mo (8x Arize AI)
- •vLLM has 72.3K GitHub stars (8x more)
- •vLLM has 342 active contributors (30d) (14x Arize AI)
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| Metric | Arize AI | vLLM |
|---|---|---|
| Website | arize.com → | vllm.ai → |
| Description | ML and LLM observability platform for monitoring and evaluation | Fast LLM inference engine. High-throughput serving for LLMs. |
| Total Funding | $61M✓ | - |
| Last Funding | Series B Sep 2022 | Not available |
| Developer Adoption | ||
| npm Downloads (30d) Source: npm registryUpdates: DailyNote: Only tracks npm, not yarn/pnpm installs | - | 30.2K✓ |
| PyPI Downloads (30d) Source: PyPI (pypistats.org)Updates: Daily | 663.4K | 5.5M✓ |
| Total Downloads (30d) | 663.4K+0% | 5.6M+0%✓ |
| Active Contributors (30d) Source: GitHub APIUpdates: Daily | 25 | 342✓ |
| npm Dependents Source: Libraries.io APIUpdates: DailyNote: Counts direct and dev dependents | - | 3✓ |
| HN Discussion Share | 0.1% of HN mentions | 5.2% of HN mentions |
| Status | Private | Private |
| HN Mentions (30d) Source: Hacker News (Algolia API)Updates: Daily | 1 | 86✓ |
| HN Mentions Trend (30d) | - | - |
| GitHub Stars Source: GitHub APIUpdates: Daily | 8.8K | 72.3K✓ |
| Founded | 2020 | 2023 |
| Primary Category | ||
| Data Last Updated | ||
Key Differences: Arize AI vs vLLM
In developer adoption, vLLM leads with 5.6M package downloads per month — roughly 8x the 663.4K downloads Arize AI receives.
Arize AI has raised $61M in funding, while vLLM does not have disclosed funding data. Arize AI's latest round was a Series B in 2022.
On GitHub, vLLM has 72.3K GitHub stars, 8x more than Arize AI's 8.8K, and vLLM has 342 active contributors in the last 30 days (14x more).
In community signals, vLLM leads in Hacker News mindshare with 86 mentions in the past 30 days compared to 1 for Arize AI.
Both Arize AI and vLLM operate in the AI Infrastructure space, making them direct competitors for developer mindshare.
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