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Mobile marketing and push · November 2026 Edition

Customer.io vs Twilio Programmable Messaging

Six of fourteen models named Customer.io first on the direct prompt; zero named Twilio Programmable Messaging. Both were named by all fourteen models and Customer.io carries 25 labels and Twilio Programmable Messaging 37, so the shares are not directly comparable.

Customer.io

accepted challenger

Named in twelve categories this edition.

Twilio Programmable Messaging

criticized challenger

By Twilio, San Francisco, United States, founded 2008. Named in two categories this edition.

First-choice share18%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate0%27%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#7A position in a field of 18; printed, not drawn.
Labels2537A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Customer.io reading right to left. Rank and label count are printed, not drawn.OneSignal was named alongside these two in thirteen of the fourteen direct answers. OneSignal vs Customer.io · OneSignal vs Twilio Programmable Messaging · Customer.io vs Braze

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; every quote names the model and the prompt it came from. Both figures come from the mobile marketing and push page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Customer.ioFirst choices, of fourteen modelsTwilio Programmable Messaging
Direct60
Paraphrase401 against Twilio Programmable Messaging
Comparative00
Budget-constrained012 against Twilio Programmable Messaging
Scale-constrained00
Negative007 against Twilio Programmable Messaging
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Customer.io and Twilio Programmable Messaging stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.20
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B
Customer.io Twilio Programmable Messaging first choice named as an alternative argued againstblank: not namedEach cell is one answer, Customer.io on the left and Twilio Programmable Messaging on the right.

The direct prompt

The plain question, one answer per model, grouped by where Customer.io and Twilio Programmable Messaging stood in it.

Customer.io first, Twilio Programmable Messaging not the choice

6 of 14 modelsTwilio Programmable Messaging was named in the answer but not as the choice, or not at all.
Claude Haiku 4.5Customer.io alternatives: Heymarket, Knock, OneSignal, Pushwoosh, Salesmsg, SlickText
GPT-5.4 miniCustomer.io alternatives: Airship, Braze
Gemini 3.5 FlashCustomer.io alternatives: Iterable, OneSignal
Perplexity SonarCustomer.io alternatives: ActiveCampaign, OneSignal, Vero
GPT-6 LunaCustomer.io alternatives: Braze, OneSignal
Muse Glimmer 30BCustomer.io, Vero alternatives: Braze, CleverTap, Iterable, MoEngage, OneSignal

Neither was the first choice, one was named

5 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Grok 4.20Braze alternatives: Airship, Customer.io, GetResponse, HubSpot Marketing Hub, OneSignal
DeepSeek V4 FlashOneSignal alternatives: Customer.io
Llama 4 MaverickOneSignal alternatives: Braze, Customer.io, GetResponse, Vero
Kimi K2OneSignal alternatives: Customer.io
MiniMax M2.5OneSignal alternatives: Customer.io, HubSpot Marketing Hub, Vibes

Neither was named

3 of 14 modelsThe answer made no first choice from these two in this category.
Mistral SmallBraze, OneSignal
Qwen 3.7 FlashBraze alternatives: OneSignal, SuprSend
GLM 4.7 FlashXBraze, OneSignal alternatives: Iterable

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Twilio Programmable Messaging leads by four points.
Twilio Programmable Messaging6%#5 of 18
Customer.io2%#7 of 18
The full small business standing →
Mid-marketThe figures above
The order flips: Customer.io leads at mid-market.
Customer.io18%#2 of 18
Twilio Programmable Messaging2%#7 of 18
The full mid-market standing →
Enterprise
The order flips: Twilio Programmable Messaging leads at enterprise.
Twilio Programmable Messaging9%#3 of 13
Customer.io0%#11 of 13
The full enterprise standing →

What the models said about Customer.io

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. One of one in this category shown.

“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 prompt · first choice

What the models said about Twilio Programmable Messaging

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of four in this category shown.

“Verdict: Avoid for marketing if you lack dev resources; better for custom builds but high frustration risk.” Grok 4.20 · negative prompt · hard negative
“Avoid for marketer-led teams without engineering support. It is developer-centric” Perplexity Sonar · negative prompt · hard negative
“Use with Caution: Powerful but require technical expertise to configure compliantly. Not recommended for non-technical teams.” Qwen 3.7 Flash · negative prompt · soft negative
“Absolute lowest cost (with developer) | FCM + Twilio | Push is 100% free; SMS is raw wholesale cost per message.” Gemini 3.5 Flash · budget prompt · first choice
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.