AI recommendation board
How AI answers when a developer asks which transactional email API to use to send email from a SaaS product. We asked ChatGPT, Claude, Gemini and Perplexity the same five buyer questions and counted, from their own answers, who gets named, who gets recommended first, and who is left out. Every number links to the verbatim answer.
| Company | Named in | Recommended first | State |
|---|---|---|---|
| Postmark | 19/20 | 19/20 | |
| Mailgun | 18/20 | 18/20 | |
| Amazon SES | 15/20 | 15/20 | |
| SendGrid | 15/20 | 15/20 | |
| Resend | 8/20 | 8/20 | |
| Brevo | 4/20 | 4/20 | |
| MailerSend | 2/20 | 2/20 | |
| Mailtrap | 2/20 | 2/20 | |
| Loops | 0/20 | 0/20 |
Sorted by how many of the 20 buyer conversations named each company, then by how often it was named first. Counts only, no score.
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