# SMS and WhatsApp marketing platforms: what AI models recommend, October 2026

Gane Index, October 2026 Edition. Asked as "SMS marketing platform" and as "text message and WhatsApp marketing tool", six framings each, to fourteen models with search on, on behalf of a mid-market B2B company. Added to the October 2026 Edition on October 4, 2026. Page: https://www.gane.ai/index/gtm/marketing/sms-and-whatsapp-marketing/2026-10

This is the permanent record of the October 2026 Edition, published October 1, 2026 and superseded since. The current standing: https://www.gane.ai/index/gtm/marketing/sms-and-whatsapp-marketing/index.md

**Standing:** Customer.io leads with 17% of first choices; verdict contested. 52 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Customer.io](https://www.gane.ai/index/gtm/vendors/customer-io/index.md) | 17% | 0% | 13 |
| 2 | [Salesmsg](https://www.gane.ai/index/gtm/vendors/salesmsg/index.md) | 13% | 0% | 22 |
| 3 | [Brevo](https://www.gane.ai/index/gtm/vendors/brevo/index.md) | 10% | 0% | 18 |
| 4 | [Textedly](https://www.gane.ai/index/gtm/vendors/textedly/index.md) | 10% | 7% | 14 |
| 5 | [Twilio Programmable Messaging](https://www.gane.ai/index/gtm/vendors/twilio-programmable-messaging/index.md) | 6% | 5% | 39 |
| 6 | [EZ Texting](https://www.gane.ai/index/gtm/vendors/ez-texting/index.md) | 6% | 5% | 19 |
| 9 | [SimpleTexting](https://www.gane.ai/index/gtm/vendors/simpletexting/index.md) | 4% | 0% | 27 |
| 10 | [SlickText](https://www.gane.ai/index/gtm/vendors/slicktext/index.md) | 4% | 4% | 26 |
| 11 | [WATI](https://www.gane.ai/index/gtm/vendors/wati/index.md) | 4% | 5% | 22 |
| 12 | [TextMagic](https://www.gane.ai/index/gtm/vendors/textmagic/index.md) | 4% | 14% | 14 |
| 13 | [Bird](https://www.gane.ai/index/gtm/vendors/bird/index.md) | 2% | 6% | 16 |
| 14 | [Sinch](https://www.gane.ai/index/gtm/vendors/sinch/index.md) | 2% | 0% | 12 |

Rank is by share of first choices among all 111 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: Customer.io; alternatives ActiveCampaign, Sakari, Salesmsg, SimpleTexting
- GPT-5.4 mini: Salesmsg; alternatives Birdeye, SMS-Magic, Sinch, SlickText
- Gemini 3.5 Flash: Salesmsg; alternatives Aloware, Customer.io, Kixie, Mogli
- Perplexity Sonar: Customer.io; alternatives Attentive, Salesmsg, Sinch, SlickText
- Grok 4.20: Salesmessage; alternatives Customer.io
- Mistral Small: Customer.io; alternatives Heymarket, Salesmsg, SimpleTexting, Sinch
- DeepSeek V4 Flash: Customer.io; alternatives ActiveCampaign, Salesmsg, Twilio Programmable Messaging
- Llama 4 Maverick: Customer.io; alternatives Heymarket, Salesmsg, SimpleTexting, SlickText
- Qwen 3.7 Flash: Customer.io; alternatives Heymarket, Salesmsg, SimpleTexting
- Kimi K2: Salesmsg; alternatives ActiveCampaign, SimpleTexting, Sinch
- GLM 4.7 FlashX: Customer.io; alternatives Braze, Salesmsg, Twilio Programmable Messaging
- MiniMax M2.5: Salesmsg, SlickText; alternatives Klaviyo SMS, Sinch, Twilio Programmable Messaging
- GPT-6 Luna: Salesmsg; alternatives HubSpot's own SMS, Sakari, TextUs
- Muse Glimmer 30B: Customer.io; alternatives Heymarket, Salesmsg, Sinch, SlickText

## Sources the answers cite

79 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- salesmessage.com: 38 answers, 45 citations
- emailvendorselection.com: 30 answers, 39 citations
- sinch.com: 27 answers, 29 citations
- sender.net: 27 answers, 27 citations
- twilio.com: 24 answers, 37 citations
- g2.com: 24 answers, 34 citations
- learn.g2.com: 21 answers, 22 citations
- attentive.com: 20 answers, 22 citations

Pages named in the most answers:

- https://salesmessage.com/blog/best-sms-marketing-software (33 answers)
- https://sinch.com/engage/resources/sms-marketing/sms-marketing-providers (26 answers)
- https://sender.net/blog/sms-marketing-platforms (25 answers)
- https://emailvendorselection.com/text-marketing-platforms (22 answers)
- https://guideflow.com/blog/whatsapp-marketing-software (18 answers)
- https://zapier.com/blog/best-sms-app (18 answers)
- https://emailvendorselection.com/sms-marketing-platforms (17 answers)
- https://infobip.com/blog/best-sms-marketing-software-platforms (17 answers)
- https://attentive.com/blog/best-sms-marketing-platforms (15 answers)
- https://getvero.com/resources/top-6-sms-marketing-platforms-for-b2b-in-2026 (15 answers)

## Warned against

- Klaviyo SMS: 4 of 25 labels negative. "Excellent for running unified segments across email and SMS campaigns, though WhatsApp integration is more recent." (MiniMax M2.5, paraphrase prompt)
- Postscript: 3 of 12 labels negative. "Frequent 2024–2026 reviews cite undelivered messages while charging, $500/mo platform fees... support declines, auto-renew traps, and refund denials." (Grok 4.20, negative prompt)
- WhatsApp: 2 of 2 labels negative. "unofficial or modified WhatsApp apps (such as GBWhatsApp, WhatsApp Plus, or automation scripts on the consumer app)" (Muse Glimmer 30B, negative prompt)
- Whatso: 2 of 2 labels negative. "This platform has received reviews describing "worst support & fraud" with support that is "NEVER AVAILABLE"" (Claude Haiku 4.5, negative prompt)

## Record

- Method: https://www.gane.ai/index/gtm/methodology
- License: CC BY 4.0. Cite as Gane Index, October 2026 Edition, www.gane.ai/index/gtm.