AI Visibility Index · July 2026

Messaging: Apache Kafka, Amazon SES, Resend lead the AI rankings

How visibly ChatGPT, Claude, Gemini & Grok recommend each messaging brand, across 12continuously re-polled “best X” leaderboards. Grades use the same A+–D scale as the brand checker; every ranking links to its full audit trail.

#	Brand	Grade	#1s	Podiums	Boards	Models	Best result
1	Apache Kafka	A+	3	3	3	4/4	#1 · Event streaming platform
2	Amazon SES	A+	2	3	6	4/4	#1 · email delivery platforms for high-volume SaaS notifications
3	Resend	A+	2	2	4	4/4	#1 · marketing email APIs for developer-led startups
4	Knock	A+	2	2	2	4/4	#1 · in-app notification platforms for B2B SaaS
5	Twilio	A+	2	2	2	4/4	#1 · SMS APIs for global transactional messaging
6	CConfluent Cloud	A+	1	2	2	4/4	#1 · Managed Kafka platform
7	Postmark	B	—	3	4	4/4	#2 · email delivery platforms for high-volume SaaS notifications
8	Mailgun	B	—	2	4	4/4	#2 · email infrastructure platforms for multi-tenant SaaS
9	RabbitMQ	B	—	2	2	4/4	#2 · message broker for event-driven microservices
10	Courier	B	—	2	2	4/4	#3 · in-app notification platforms for B2B SaaS
11	Amazon MSK	B	—	1	4	4/4	#2 · Managed Kafka platform
12	Redpanda	B	—	1	3	4/4	#2 · Event streaming platform
13	Apache Pulsar	B	—	1	3	4/4	#3 · message queue for distributed systems
14	NATS	B	—	1	3	4/4	#3 · message broker for event-driven microservices
15	Novu	B	—	1	2	4/4	#2 · in-app notification platforms for B2B SaaS
16	SuprSend	B	—	1	2	4/4	#2 · notification orchestration platforms for product teams
17	Vonage	B	—	1	2	3/4	#2 · SMS APIs for two-factor authentication
18	Plivo	B	—	1	2	3/4	#3 · SMS APIs for two-factor authentication
19	Telnyx	B	—	1	2	4/4	#3 · SMS APIs for global transactional messaging
20	Infobip	B	—	1	1	4/4	#2 · SMS APIs for global transactional messaging
21	Loops	B	—	1	1	3/4	#2 · marketing email APIs for developer-led startups
22	Customer.io	B	—	1	1	3/4	#3 · marketing email APIs for developer-led startups
23	RRedpanda Cloud	B	—	1	1	4/4	#3 · Managed Kafka platform
24	SendGrid	C	—	—	4	3/4	#4 · email delivery platforms for high-volume SaaS notifications
25	AAiven for Apache Kafka	C	—	—	2	4/4	#4 · Managed Kafka platform
26	MagicBell	C	—	—	2	3/4	#4 · in-app notification platforms for B2B SaaS
27	Mailer To Go	D	—	—	2	1/4	#5 · email infrastructure platforms for multi-tenant SaaS
28	SMTP2GO	D	—	—	2	1/4	#6 · email delivery platforms for high-volume SaaS notifications
29	Brevo	C	—	—	1	2/4	#4 · marketing email APIs for developer-led startups
30	Sinch	C	—	—	1	4/4	#4 · SMS APIs for global transactional messaging

+ 16 more ranked brands below the top 30.

Method: brands are rolled up by homepage domain and ranked by #1 finishes, podiums, then board coverage across this industry's leaderboards — data updated 2026-07-19. All industries → · Source: modelsagree.com · CC BY 4.0