July 2026 snapshot · 72 AI answers Leader emerging

Communications APIs (CPaaS): AI Visibility Ranking

APIs for SMS, voice, email, and verification in your product. Right now, Twilio is the brand AI assistants recommend most, with a Visibility Score of 85 and the #1 spot in 79% of answers. Head-to-head: Twilio vs Vonage →

These rankings are measured from what the three models know from training, not a live web search. The live-web grounded surface is rolling out across the index. Methodology.

Twilio owns first pick; everyone else competes for honorable mentions.

Twilio's 79% first-pick rate against Vonage's 2.8% tells the real story here: being mentioned and being chosen are very different things. Vonage scores 89 on Claude but only 55 on Gemini, which means its AI visibility is model-dependent in a way that creates real risk. Bird and Sinch both clear 50% mention rates yet never land the top recommendation, making them the definition of presence without authority.

AI-generated analysis of the July 2026 measurements.

#	Brand	Visibility Score	Mention rate	Avg. position	#1 pick rate	Models
1	Twilio	85 ±0.8	88%	1	79%	ChatGPT #1 Claude #2 Gemini #1
2	Vonage	71 ±3.8	86%	3	3%	ChatGPT #2 Claude #1 Gemini #2
3	Bird	54 ±5.6	72%	4	0%	ChatGPT #3 Claude #3 Gemini #4
4	Plivo	39 ±3.4	51%	3	6%	ChatGPT #4 Claude #5 Gemini #3
5	Sinch	38 ±6	57%	4	0%	ChatGPT #5 Claude #4 Gemini #6
6	Telnyx	29 ±4.5	42%	4	8%	ChatGPT #6 Claude #7 Gemini #7
7	Infobip	25 ±4.4	39%	5	1%	ChatGPT #7 Claude #9 Gemini #5
8	Bandwidth	17 ±3.4	25%	4	0%	ChatGPT #8 Claude #6 Gemini #8
9	AWS SNS	10 ±3.9	15%	5	0%	ChatGPT #13 Claude #8 Gemini #9
10	AWS	8 ±4.9	14%	5	0%	ChatGPT #9 Claude #10 Gemini #15
11	Microsoft Azure Communication Services	4 ±3.9	6%	3	0%	ChatGPT #11 Claude Gemini #10
12	Azure Communication Services	4 ±3	7%	5	0%	ChatGPT Claude #12 Gemini #11
13	SendGrid	4 ±3.6	6%	4	0%	ChatGPT #12 Claude #13 Gemini #12
14	ClickSend	4 ±2.3	8%	7	0%	ChatGPT #14 Claude #11 Gemini #14
15	Amazon SNS	3 ±3.8	4%	3	1%	ChatGPT #10 Claude Gemini #13

The ± under each score is the reliability band: how much the number would move if we re-ran the identical measurement. It is tight because each prompt is sampled multiple times. It is not the same as how much the ranking depends on which prompts we ask — a separate, wider figure shown on hover.

Just below the cutoff: Postmark (3.3), Meta (2.8), Telesign (2.6), Resend (2.4), Agora (2.2). 54 brands were scored in this category; the leaderboard shows the top 15.

Visibility Score: position-weighted presence across all measured answers, 0 to 100. A score of 100 means the brand was the first recommendation in every answer. Every point in a trend line is a live monthly measurement; there is no modeled or backfilled history. Full methodology.

Openness 15/100: the share of this category's recommendation weight not held by the leader.

Compare brands in Communications APIs (CPaaS) head-to-head → · Explore the prompt tree →

Get alerted on big movements

We rerun the index every month. Drop your email and pick what to watch in Communications APIs (CPaaS): the whole category or specific brands. Free, unsubscribe anytime.

Do the models agree?

Per-model Visibility Scores for the top 10. A long gray bar means the three assistants disagree about the brand. Hover a row for exact values.

ChatGPT Claude Gemini

Where they land in the answer

When a brand is mentioned, where does it appear? Box shows the middle 50% of positions, the thick line is the median, whiskers are the extremes. Hover a row for the detail.