12 categories · RankedCustomer.io
Customer.io is a customer engagement platform for creating personalized journeys across email, push, SMS, and in-app messaging · customer.io ↗
Gane, the publisher, sells software in Marketing automation, Email marketing and AI marketing agents, where this product is measured. It is measured there by the same method as every other product. How the conflict is handled.
Strongest at mid-market, contested with Brevo. Thin evidence at small business: one label.
The standing depends on who is buying. Every model is asked the same questions for each company size.
SimpleTexting is first at 21%.
Ranked first, contested: Brevo has 10%. 7 of 14 models made it the first choice when asked directly.
Braze is first at 19%.
Why models recommend it
“Start with Customer.io. In the B2B space, the ability to connect "User Actions" (Push) with "Contact Data" (SMS) provides the highest Return on Investment”Qwen 3.7 Flash · Paraphrase question · first choice
“The consensus for mid-market B2B SMS is Customer.io... with Customer.io as the best-in-class upgrade for SMS-centric, event-driven B2B programs.”Muse Glimmer 30B · Paraphrase question · first choice
“For SMS: Customer.io is the top pick for mid-sized B2B companies due to its scalability, automation, and developer-friendly approach.”Mistral Small · Paraphrase question · first choice
“Best All-Around (Marketing & Cross-Channel): Customer.io ... arguably the best value in the industry”Qwen 3.7 Flash · Budget-constrained question · first choice
What gives them pause
“in-app UI (tooltips/tours) is weaker”DeepSeek V4 Flash · Paraphrase question · warning
Also on the shortlist
The products named in the same answers as Customer.io, over the 259 answers that named it, and how often each was the first choice instead.
| Product | Named together | Picked instead | |
|---|---|---|---|
| 133 | 34 | Compare → | |
| 93 | 33 | Compare → | |
| 65 | 26 | View → | |
| 63 | 10 | View → | |
| 55 | 1 | View → | |
| 54 | 4 | Compare → | |
| 47 | 24 | View → | |
| 46 | 16 | Compare → | |
| 44 | 3 | View → | |
| 34 | 3 | Compare → |
What the models named instead of Customer.io →
A side-by-side page exists where both products are among a category's top eight.
At a glance
Stated on Customer.io's own site, not checked by Gane.
- For
- brands
- Price stated
- 14-day free trial; No credit card required; Cancel anytime
- Free plan or trial
- 14-day free trial
- Certifications
- GDPR, CCPA, ISO 27001, HIPAA, SOC 2 Type II
- Hosting
- US, EU
- Customers named
- Buffer, Monarch Money, Notion, Livestorm, Klar, WIN Reality, ZEN.COM, StuDocu
How this is measured
Fourteen AI models from 12 labs are asked the same buying questions six ways, for three company sizes. Standings refresh every edition.
Gane sells AI visibility software. No company can pay to change a result.
Read the method →Sources returned with these answers
Fourteen of the fourteen models returned a source list in this edition: five return the pages they cited and nine the search results they consulted. These counts come from 218 of the 259 answers that named Customer.io and are not a share of its labels.
Domains cited
407 of the 491 domain citations in answers naming Customer.io came from a third party's page. Fifty were to the publisher's own pages (the Gane Index), which the models cite like any other source; they are not counted as a third party.
Pages cited
Pages are listed as the models cited them.
By model
| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 3 | 1 | 2 | 0 | 6 |
| GPT-5.4 mini | 1 | 5 | 0 | 0 | 6 |
| Gemini 3.5 Flash | 3 | 8 | 1 | 0 | 12 |
| Perplexity Sonar | 5 | 3 | 2 | 0 | 10 |
| Grok 4.20 | 1 | 6 | 4 | 0 | 11 |
| Mistral Small | 2 | 3 | 3 | 0 | 8 |
| DeepSeek V4 Flash | 1 | 2 | 3 | 1 | 7 |
| Llama 4 Maverick | 2 | 4 | 2 | 0 | 8 |
| Qwen 3.7 Flash | 2 | 4 | 0 | 0 | 6 |
| Kimi K2 | 2 | 4 | 1 | 0 | 7 |
| GLM 4.7 FlashX | 0 | 5 | 0 | 0 | 5 |
| MiniMax M2.5 | 1 | 2 | 2 | 0 | 5 |
| GPT-6 Luna | 3 | 2 | 0 | 0 | 5 |
| Muse Glimmer 30B | 4 | 2 | 7 | 0 | 13 |
What it publishes
| Kind | Pages | Last 90 days | 2025-10 to 2026-09 | Latest | Categories named |
|---|---|---|---|---|---|
| Glossary or explainer | 326 | 5 | 2026-09-15 | Marketing automation, CDP | |
| Conference or event | 106 | 14 | 2026-10-08 | ||
| Case study | 41 | 4 | 2026-09-01 | ||
| Comparison | 14 | 5 | 2026-09-25 | CDP | |
| Template or tool | 11 | undated | |||
| Blog | 3 | undated | |||
| Report or ebook | 3 | 0 | 2021-02-10 | ||
| Webinar or virtual event | 1 | 0 | 2015-11-12 |
Most recent
- 2026-09-25Build vs buy comparison
- 2026-09-18Ti dallas conference or event
- 2026-09-16Boston jungle conference or event
- 2026-09-15G2 fall 2026 glossary or explainer
- 2026-09-11Lifecycle underground paris 9 2026 conference or event
Events in person
- September 11, 2026Lifecycle Underground: ParisParis, FR · hosted
- September 9, 2026Lifecycle Underground: LondonLondon, UK · hosted
- September 8, 2026Lifecycle Underground: StockholmStockholm, SE · hosted
As the event pages on customer.io state them, read September 28, 2026.
How it is countedHide how it is counted
Every page customer.io exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. An event counts as online when its address or title says so (webinar, on demand, virtual or online summit); a conference, summit, trade show, expo or roadshow that does not say so is counted as a conference or event, which on a vendor's site is mostly in person. Read September 29, 2026.