# Vectara vs Writer: who uses which

On usedby, 6 companies use Vectara and 74 use Writer. No company is listed with both yet. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-08: 72 of 80 public lines checked.

## Side by side

|  | [Vectara](https://www.usedby.ai/tools/vectara.md) | [Writer](https://www.usedby.ai/tools/writer.md) |
|---|---|---|
| Public customers | 6 | 74 |
| Confirmed | 2 | 63 |
| Observed | 4 | 11 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | DevTools & Infrastructure (1) | HealthTech & Digital Health (7), Marketing Tech (7), Fintech & Payments (5) |
| Category | Enterprise AI Platforms | Enterprise AI Platforms |
| Security | HIPAA ([vectara.com](https://www.vectara.com/legal/security-at-vectara), checked 2026-10-08) | SOC 2 Type II, ISO 27001 ([writer.com](https://writer.com/trust/), checked 2026-10-03) |
| Your data | Not used to train models by default. ([vectara.com](https://www.vectara.com/legal/security-at-vectara), checked 2026-10-08) | Not used to train models by default. ([writer.com](https://writer.com/trust/), checked 2026-10-03) |
| Free trial | Free trial or free plan available. ([vectara.com](https://www.vectara.com/pricing), checked 2026-10-08) | Free trial or free plan available. ([writer.com](https://writer.com/plans/), checked 2026-10-03) |
| Integrations | VMware, Datadog, Otairo, LlamaIndex, Saison Technology International, Airbyte, LangChain, LangFlow ([vectara.com](https://www.vectara.com/developers/build/integrations), checked 2026-10-08) | Snowflake, Salesforce, Contentful, Adobe Experience Manager, Asana, Atlassian, Databricks, FactSet, Gong, Google BigQuery, Google Workspace, HubSpot ([writer.com](https://writer.com/product/connectors/), checked 2026-10-03) |
| Data processing terms | — | A data processing agreement is available. ([writer.com](https://writer.com/legal/data-processing/), checked 2026-10-03) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Vectara: [Qumulo](https://www.usedby.ai/case-studies/qumulo-vectara.md): **170 daily search queries**: “Qumulo has been tracking up to 170 daily search queries, with an average of 4 queries per user.” (captured by usedby 2026-10-07)
- Vectara: [Broadcom](https://www.usedby.ai/case-studies/broadcom-vectara.md): **50%**: “delivered 50% faster internal knowledge retrieval” (captured by usedby 2026-10-07)

---
Source: https://www.usedby.ai/compare/vectara-vs-writer · How we check: https://www.usedby.ai/methodology