Thunderdome B2B SaaS AI Visibility Index

← Communications APIs (CPaaS) ranking

Feature-led ask · Prompt 6 of 8 · September 2026

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

“I need reliable global SMS delivery with good deliverability reporting. What do you recommend?”

ChatGPT answered 3× this snapshot

For reliable global SMS delivery with strong deliverability reporting, I’d usually recommend shortlisting these vendors: Top choices Twilio Very strong global coverage Good APIs and documentation Solid delivery status reporting Best if you want developer-friendly integration and broad ecosystem support Sinch Strong international messaging footprint Good carrier relationships in many markets Enterprise-oriented…

Named across its answers: 1. Twilio2. Sinch3. Infobip4. Bird5. Vonage

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, a level of consistency that makes it the default recommendation any buyer will see. Sinch is the clear runner-up at position 3.1 but never leads, while top-15 category players like Bandwidth and Vonage show how far brand visibility can diverge from category rank.

AI-generated read of the September 2026 measurements.

Who wins this question

Owned Consensus

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

ChatGPTClaudeGemini mentioned · first · avg. pos
Twilio 111111111 9/9 · 9× first · #1
Sinch 22224445 8/9 · never first · #3.1
Vonage 55322432 8/9 · never first · #3.3
Infobip 333223 6/9 · never first · #2.7
Bird 444433 6/9 · never first · #3.7
Plivo 54 2/9 · never first · #4.5
Telnyx 63 2/9 · never first · #4.5

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: Bandwidth, AWS, AWS SNS, SignalWire, Azure Communication Services, SendGrid, ClickSend, Postmark.

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.