Amazon SES vs Resend
as AI assistants see them, week of 2026-09-28
Amazon SES and Resend land close in overall score, 59 versus 61, but AI assistants reach for them differently. SES shows up in 51 of 62 answers and wins the head-to-head count, named more often than Resend on 8 questions, versus 3 for Resend, with 9 ties. Resend scores higher with ChatGPT (76 vs 56) and Claude (69 vs 64), but trails badly on Perplexity, 39 versus 57. Both are named in every answer to "best transactional email APIs" and "best developer experience" questions, and neither gets mentioned for email preview and testing tools.
Head to head
| metric | Amazon SES | Resend |
|---|---|---|
| score | 59 | 61 |
| questions won | 19 | 18 |
By assistant
Amazon SES
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 56 | 75% of answers | #3.3 |
| Claude | 64 | 95% of answers | #4.2 |
| Gemini | not sampled this week | ||
| Perplexity | 57 | 75% of answers | #3.1 |
Resend
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 76 | 85% of answers | #1.8 |
| Claude | 69 | 90% of answers | #3.1 |
| Gemini | not sampled this week | ||
| Perplexity | 39 | 45% of answers | #2.1 |
Where they differ
Only Amazon SES gets named for
- What's the best open-source or self-hosted transactional email server?
Only Resend gets named for
nothing exclusive
More comparisons
- Amazon SES vs Postmark
- Amazon SES vs SendGrid
- Amazon SES vs Mailgun
- Amazon SES vs Brevo
- Postmark vs Resend
- Resend vs SendGrid
Not sold on either?
Scores count how often each assistant names a product, weighted by position. How the score works · Full Transactional email APIs leaderboard