# OneSignal vs Customer.io: which do AI models recommend for mobile & push, October 2026

GTM AI Recommendation Index, October 2026 Edition, Mobile marketing and push. Five of fourteen models named OneSignal first on the direct prompt; six named Customer.io. Page: https://gtm-ai-index.com/marketing/mobile-marketing-and-push/onesignal-vs-customer-io/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| OneSignal | 45% | #1 of 14 | 5% | 62 | 14 of 14 |
| Customer.io | 19% | #2 of 14 | 0% | 23 | 11 of 14 |

## The direct prompt, model by model

- Perplexity Sonar: onesignal first (first choices: OneSignal) (alternatives: Attentive, CleverTap, Insider, MoEngage)
- Mistral Small: onesignal first (first choices: OneSignal, Pushwoosh) (alternatives: Insider)
- DeepSeek V4 Flash: onesignal first (first choices: OneSignal) (alternatives: Customer.io, Twilio Programmable Messaging)
- Kimi K2: onesignal first (first choices: OneSignal) (alternatives: ActiveCampaign, Customer.io, Iterable)
- MiniMax M2.5: onesignal first (first choices: OneSignal) (alternatives: Braze, MoEngage, Salesforce Marketing Cloud, Twilio Programmable Messaging)
- Claude Haiku 4.5: customer.io first (first choices: Customer.io) (alternatives: ActiveCampaign, Courier, OneSignal, Pushwoosh, Vero)
- Gemini 3.5 Flash: customer.io first (first choices: Customer.io, Sakari) (alternatives: ActiveCampaign, OneSignal)
- Grok 4.20: customer.io first (first choices: Customer.io) (alternatives: Braze, OneSignal, Pushwoosh, Vero)
- Qwen 3.7 Flash: customer.io first (first choices: Customer.io) (alternatives: Braze, HubSpot Marketing Hub)
- GLM 4.7 FlashX: customer.io first (first choices: Customer.io) (alternatives: OneSignal)
- Muse Glimmer 30B: customer.io first (first choices: Customer.io) (alternatives: Braze, Iterable)
- GPT-5.4 mini: neither first, one named (first choices: Braze) (alternatives: Airship, Iterable, OneSignal)
- GPT-6 Luna: neither first, one named (first choices: Customer.io Journeys) (alternatives: Braze, OneSignal)
- Llama 4 Maverick: neither named (first choices: Pushwoosh) (alternatives: Attentive, Klaviyo)

## What the models said about OneSignal

- "OneSignal relies primarily on FCM for Android delivery, which creates reliability issues in markets like China where Google services are blocked." (Muse Glimmer 30B, negative prompt, soft negative)
- "Budget-friendly, easy setup, good for lean teams | Less enterprise depth for complex journeys" (DeepSeek V4 Flash, scale prompt, soft negative)
- "Be cautious with: OneSignal (verify new pricing works for you)" (Kimi K2, negative prompt, soft negative)
- "I'd recommend OneSignal as the starting point—it's cost-effective, has strong deliverability, and handles both push and SMS well." (MiniMax M2.5, direct prompt, first choice)

## What the models said about Customer.io

- "the industry consensus for a mid-market B2B company looking for a balance of features, ease of use, and cost-effectiveness is Customer.io" (GLM 4.7 FlashX, direct prompt, first choice)
- "the industry consensus for the best overall balance of power and usability for mid-market B2B (especially SaaS) is Customer.io" (Qwen 3.7 Flash, direct prompt, first choice)

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.