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

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

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| OneSignal | 17% | #2 of 15 | 3% | 34 | 14 of 14 |
| Knock | 3% | #6 of 15 | 0% | 11 | 8 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)
- DeepSeek V4 Flash: neither first, one named (first choices: Intercom) (alternatives: Appcues, OneSignal, Userpilot)
- 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)
- Grok 4.1 Fast: neither named (first choices: Intercom) (alternatives: CometChat, LiveChat, Sendbird, Zendesk)
- 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 OneSignal

- "OneSignal/Firebase: Too lightweight for B2B product messaging" (Kimi K2, paraphrase prompt, hard negative)
- "For companies with very limited budgets, OneSignal or Firebase are ideal starting points since they offer generous free tiers." (Claude Haiku 4.5, budget prompt, first choice)

## 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)

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.