Perplexity has the stronger current footing across package adoption, installed base, and funding. Vespa's clearest relative edge is active contributors. Both compete in AI Search. Updated daily with live metrics.
At a glance
Data sources: npm, PyPI, GitHub, Crunchbase, Hacker News, Reddit, job boards. Methodology →
Latest comparable sync April 2, 2026Evidence Table
Production signals first, softer context second. Winner states are explicit, and weak or missing data stays visible instead of being rounded away.
← Scroll to compare columns →
| Signal | Current edge | Updated Apr 2 | Updated Apr 2 |
|---|---|---|---|
Adoption & EcosystemThese signals carry the most weight for a production default. | |||
| Momentum | Current edge Perplexity +10 pts | 53 Moderate | 43 Moderate |
| Total package downloads (30d)Source: npm + PyPI registriesUpdates: DailyNote: Sum of npm and PyPI; excludes other package managersMethodology → | Current edge Perplexity 1.8x | 876.5K | 477.7K +8% |
| npm registry downloads (30d)Source: npm registryUpdates: DailyNote: Includes all package installations including CI/CD pipelines and mirrorsMethodology → | Current edge Perplexity +876.5K | 876.5K | 0 |
| PyPI registry downloads (30d)Source: PyPI (pypistats.org)Updates: DailyNote: Includes all package installations including CI/CD pipelines and mirrorsMethodology → | Current edge Vespa +477.7K | 0 | 477.7K |
| Package dependentsSource: npm + PyPI registriesUpdates: DailyNote: Counts dependent packages across tracked npm and PyPI packages.Methodology → | Current edge Perplexity 4.4x | 141 npm 141 · PyPI 0 | 32 npm 0 · PyPI 32 |
| Active contributors/daySource: GitHub APIUpdates: DailyNote: Tracks designated public repos per company, not all company GitHub activityMethodology → | Current edge Vespa 2.0x | 1 | 2 -71% |
| Code adoption (repos)Source: ecosyste.ms Packages APIUpdates: DailyNote: Approximate count; excludes forksMethodology →Exclusive | Current edge Vespa +434 | 0 | 434 |
Community & AttentionHelpful context, but weaker than the adoption rows above. | |||
| GitHub starsSource: GitHub APIUpdates: DailyNote: Stars are bookmarks - a popularity signal, not a usage indicatorMethodology → | Current edge Vespa 146x | 47 | 6.9K |
| Hacker News mentions (30d)Source: Hacker News (Algolia API)Updates: DailyMethodology → | Current edge Perplexity 168x | 168 | 1 |
| HN discussion shareSource: Hacker News (Algolia API)Updates: DailyNote: Share of Hacker News mentions within the company's primary category.Methodology → | Current edge Perplexity only | 0.7% | Not tracked |
| Reddit mentions (30d)Source: Reddit (search API)Updates: DailyNote: Counts posts and comments mentioning the company by name.Methodology →Exclusive | Current edge Perplexity +2 | 2 | Not tracked |
| Job mentions (30d)Source: Job board aggregationUpdates: DailyNote: Counts job listings that mention the company's technology.Methodology →Exclusive | Current edge Perplexity +1 | 1 | Not tracked |
Company DurabilityCapital and financing history provide context, not the whole call. | |||
| Total disclosed fundingSource: Public records / manual researchUpdates: WeeklyMethodology → | Current edge Perplexity 47x | $1.5B | $31M |
| Last funding round | Current edge Different | Series D Jun 2025 | Seed Oct 2023 |
Data TrustCoverage and freshness stay visible instead of being hidden by the narrative. | |||
| Data confidenceSource: AI-BuzzUpdates: DailyNote: Composite score based on field completeness, metric freshness, and identifier coverage.Methodology → | Current edge Vespa +4 pts | Excellent (94%) | Excellent (98%) |
| Signals trackedSource: AI-BuzzUpdates: DailyNote: Number of tracked non-null signals in the core compare dataset.Methodology → | Current edge Even | 5/7 adoption, attention, and trust signals | 5/7 adoption, attention, and trust signals |
| Latest sync | Current edge Same | Apr 2, 2026 | Apr 2, 2026 |
Verdict
Perplexity has the stronger current base on production adoption and installed base. Vespa still has the better short-term growth signal, so this is a stability call rather than a universal win.
Production adoption
Perplexity leads at 1.8x on package downloads. Perplexity is at 876.5K/mo.
Installed base
Perplexity leads at 4.4x in dependent packages.
Code adoption
Vespa is the only company here with tracked repository-import evidence.
Maintenance capacity
Vespa has the more active contributor base at 2 contributors/day.
npm+PyPI downloads/mo: Perplexity 876.5K vs Vespa 477.7K. GitHub stars: Vespa 6.9K vs Perplexity 47. Data as of April 2, 2026. Source: AI-Buzz Developer Adoption Index, ai-buzz.com/compare/perplexity-vs-vespa. Accessed April 2, 2026.
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Compare metric trends across companies over time
Comparing npm Downloads over 30 days: Perplexity (81.8K).
Source: npm registry | Methodology | CC-BY-NC 4.0
| Date | Perplexity | Vespa |
|---|---|---|
| Mar 18 | 68.4K | - |
| Mar 25 | 74.7K | - |
| Apr 1 | 81.8K | - |
| Apr 2 | 0 | - |
