# Knock: how AI models rank it, September 2026

GTM AI Recommendation Index, September 2026 Edition. Named in 8 judge labels across 2 categories by 6 of 12 models. Page: https://gtm-ai-index.com/vendors/knock/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Mobile marketing and push | 0% | 20 | 0% | 6 |
| In-app messaging and customer communications | 0% | 44 | 0% | 2 |

## What the models said for it

- "look into "notification infrastructure" platforms (such as Courier or Knock)" (Gemini 3.5 Flash, Mobile & push)
- "Knock's channel set is particularly suited to B2B: SMS alongside email, push, in-app, Slack, and Microsoft Teams." (Claude Haiku 4.5, Mobile & push)
- "API-first, developer-friendly, only charged for messages sent" (Kimi K2, In-app messaging)
- "Courier and Knock act as a unified notification API layer." (Gemini 3.5 Flash, Mobile & push)

## Record

- Method: https://gtm-ai-index.com/methodology/
- Raw judge labels and full responses: https://gtm-ai-index.com/data/
- License: CC BY 4.0. Cite as GTM AI Recommendation Index, September 2026 Edition, gtm-ai-index.com.