Thunderdome B2B SaaS AI Visibility Index

← Communications APIs (CPaaS) ranking

Use-case fit · Prompt 2 of 8 · July 2026

A real buyer question from the July 2026 snapshot, asked 3× to each of the three models. 9 answers recorded.

“We need to add two-factor authentication codes by SMS and WhatsApp. What should we use?”

ChatGPT answered 3× this snapshot

Short answer: don’t build this yourself—use an auth provider that already handles OTP delivery across SMS and WhatsApp, rate limiting, fraud checks, and regional quirks. Good options: Twilio Verify Easiest way to get both SMS and WhatsApp OTPs under one API. Handles templates, retries, and compliance. Strong global coverage. Downsides: can get pricey at scale; WhatsApp requires approved templates. MessageBird (Bird)…

Named across its answers: 1. Twilio2. Bird3. Vonage4. Meta5. AWS

Verbatim excerpt from one collected ChatGPT answer; formatting flattened, words untouched.

Twilio owns this question completely, appearing first in all 9 answers across every model, while Bird is present just as consistently but never leads, averaging position 2.7. Four category-ranked players, including Plivo and Sinch, went unmentioned, meaning buyers asking this exact question will never encounter them.

AI-generated read of the July 2026 measurements.

Who wins this question

Owned Consensus

All three models name Twilio, Bird and Vonage on this question.

ChatGPTClaudeGemini mentioned · first · avg. pos
Twilio 111111111 9/9 · 9× first · #1
Bird 222533322 9/9 · never first · #2.7
Vonage 33332263 8/9 · never first · #3.1
Infobip 44234 5/9 · never first · #3.4
Meta 454 3/9 · never first · #4.3
AWS 427 3/9 · never first · #4.3
Telesign 44 2/9 · never first · #4
360dialog 55 2/9 · never first · #5
Stytch 4 1/9 · never first · #4
Firebase 5 1/9 · never first · #5
Amazon SNS 5 1/9 · never first · #5
Clerk 5 1/9 · never first · #5

Each square is one collected answer; the number is the brand's position in that answer. Lime = the very first recommendation. Unlinked brands were named by the models here but sit outside this category's published top 15 overall. Never mentioned here: Plivo, Sinch, Telnyx, Bandwidth, AWS SNS, Microsoft Azure Communication Services, Azure Communication Services, SendGrid, ClickSend.

Build variants of this question: the Communications APIs (CPaaS) prompt tree → ← Previous prompt Next prompt →

Part of the Communications APIs (CPaaS) snapshot: 72 answers across 8 prompts. Full category ranking · Compare brands head-to-head · Methodology.