# Knock vs CometChat: which do AI models recommend for in-app messaging, October 2026

GTM AI Recommendation Index, October 2026 Edition, In-app messaging and customer communications. Two of fourteen models named Knock first on the direct prompt; zero named CometChat. Page: https://gtm-ai-index.com/customer/in-app-messaging-and-customer-communications/knock-vs-cometchat/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Knock | 3% | #6 of 15 | 0% | 11 | 8 of 14 |
| CometChat | 2% | #8 of 15 | 6% | 16 | 9 of 14 |

## The direct prompt, model by model

- Mistral Small: knock first (first choices: Knock) (alternatives: Appcues, OneSignal)
- Llama 4 Maverick: knock first (first choices: Knock, Respond.io)
- Perplexity Sonar: neither first, one named (first choices: Appcues) (alternatives: Knock, OneSignal)
- Grok 4.1 Fast: neither first, one named (first choices: Intercom) (alternatives: CometChat, LiveChat, Sendbird, Zendesk)
- Claude Haiku 4.5: neither named (alternatives: Front, Gleap, Helply, Intercom, Product Fruits)
- GPT-5.4 mini: neither named (first choices: Intercom) (alternatives: Appcues, Pendo)
- Gemini 3.5 Flash: neither named (first choices: Intercom, Userpilot) (alternatives: Appcues, Front, Plain, Pylon, Userflow)
- DeepSeek V4 Flash: neither named (first choices: Intercom) (alternatives: Appcues, OneSignal, Userpilot)
- Qwen 3.7 Flash: neither named (first choices: Appcues) (alternatives: Chameleon, Pendo, UserGuiding, Userpilot)
- Kimi K2: neither named (first choices: Appcues, Userpilot) (alternatives: Chameleon, Intercom)
- GLM 4.7 FlashX: neither named (first choices: Intercom) (alternatives: Appcues, CleverTap, Userpilot)
- MiniMax M2.5: neither named (first choices: Userpilot) (alternatives: Appcues, Chameleon, Intercom)
- GPT-6 Luna: neither named (first choices: Userpilot) (alternatives: Appcues, Intercom, Pendo)
- Muse Glimmer 30B: neither named (first choices: Appcues, Userpilot) (alternatives: Braze, Intercom, Pendo, Product Fruits)

## What the models said about Knock

- "Knock is often recommended as the top choice due to its comprehensive features and scalability" (Mistral Small, direct prompt, first choice)
- "Knock - offers enterprise-grade scalability with developer-friendly implementation." (Llama 4 Maverick, direct prompt, first choice)
- "Developer-led, notification infrastructure | From $250/month | Requires more technical setup" (Kimi K2, scale prompt, alternative)

## What the models said about CometChat

- "CometChat, for instance, has a steep jump from its free tier (limited to 100 users) to a minimum paid tier of around $299/month" (Gemini 3.5 Flash, negative prompt, soft negative)
- "For user-to-user chat integration (MVP): Go with CometChat." (Gemini 3.5 Flash, budget prompt, first choice)
- "→ Sendbird, Stream, or CometChat" (DeepSeek V4 Flash, comparative prompt, first choice)
- "Their "Builder" plan is free forever for development/testing and includes up to 100 users with full features." (Qwen 3.7 Flash, budget prompt, alternative)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.