MailerSend vs Mailjet
as AI assistants see them, week of 2026-09-28
MailerSend and Mailjet both sit near the bottom of the pack, with overall scores of 10 and 9. MailerSend shows up in 10 of 62 answers, versus 8 of 62 for Mailjet, and across questions where there's a difference, MailerSend edges ahead 4 times to Mailjet's 2, with 14 ties. MailerSend does best on cost-focused questions, named in 2 of 3 answers for cheapest transactional email at scale and best startup provider. Mailjet's strongest showing is on EU data hosting, named in all 3 answers there. By assistant, Claude rates MailerSend highest at 21, while ChatGPT never names MailerSend at all.
Head to head
| metric | MailerSend | Mailjet |
|---|---|---|
| score | 10 | 9 |
| questions won | 8 | 5 |
By assistant
MailerSend
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 0 | 0% of answers | |
| Claude | 21 | 35% of answers | #5.7 |
| Gemini | not sampled this week | ||
| Perplexity | 11 | 15% of answers | #3.7 |
Mailjet
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 7 | 10% of answers | #3.5 |
| Claude | 12 | 20% of answers | #5.8 |
| Gemini | not sampled this week | ||
| Perplexity | 7 | 10% of answers | #3.5 |
Where they differ
Only MailerSend gets named for
- What's the cheapest way to send transactional email at scale?
- What's the best transactional email provider for high volume at low cost?
- What are the best transactional email APIs?
Only Mailjet gets named for
nothing exclusive
More comparisons
- MailerSend vs Mailtrap
- MailerSend vs Postal
- Elastic Email vs MailerSend
- Loops vs MailerSend
- Mailjet vs Postal
- Elastic Email vs Mailjet
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