Mailgun vs SendGrid
as AI assistants see them, week of 2026-09-28
Mailgun and SendGrid both show up often when AI assistants talk email APIs, but SendGrid edges ahead overall, scoring 47 versus Mailgun's 41, and landing in 45 of 62 answers compared to Mailgun's 40. Mailgun actually ties SendGrid for "best transactional email APIs" at 4 of 4 answers, and leads on questions about deliverability and SMTP services. Head-to-head, SendGrid is named more often in 7 questions, Mailgun in 3, with 10 ties. Neither gets mentioned for email testing and preview tools, that question went unanswered for both.
Head to head
| metric | Mailgun | SendGrid |
|---|---|---|
| score | 41 | 47 |
| questions won | 19 | 19 |
By assistant
Mailgun
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 45 | 65% of answers | #3.9 |
| Claude | 46 | 80% of answers | #6.0 |
| Gemini | not sampled this week | ||
| Perplexity | 32 | 45% of answers | #3.7 |
SendGrid
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 44 | 65% of answers | #4.2 |
| Claude | 53 | 85% of answers | #5.1 |
| Gemini | not sampled this week | ||
| Perplexity | 44 | 65% of answers | #4.1 |
Where they differ
Only Mailgun gets named for
nothing exclusive
Only SendGrid gets named for
nothing exclusive
More comparisons
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- Amazon SES vs SendGrid
- 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