Brevo vs Mailgun

as AI assistants see them, week of 2026-09-28

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Mailgun comes out ahead here, named in 40 of 62 answers versus Brevo's 20, and it scores 41 overall against Brevo's 23. Mailgun leads on ChatGPT (45 to 14), Claude (46 to 21), and Perplexity (32 to 34, essentially tied). Mailgun is named in every answer for "best transactional email APIs" and shows up consistently for deliverability, developer experience, and SMTP questions, with only one question where it's never mentioned. Brevo's strongest showings are on free tier, marketing-plus-email, and EU data hosting questions, each at 3 of 3. Head-to-head, Mailgun is named more often in 13 questions, Brevo in 2, with 5 ties.

Head to head

metric	Brevo	Mailgun
score	23	41
questions won	10	19

By assistant

Brevo

assistant	score	named in, this week	usual spot, this week
ChatGPT	14	15% of answers	#1.3
Claude	21	35% of answers	#5.3
Gemini	not sampled this week
Perplexity	34	45% of answers	#3.1

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

Where they differ

Only Brevo gets named for

nothing exclusive

Only Mailgun gets named for

What's the best SMTP service for an app?
Which email API has the best deliverability?
Which transactional email provider has the best developer experience?
What's the best transactional email provider for high volume at low cost?
What's the best way to send password reset and verification emails from my app?
What's the best email API with React or JSX email templates?
What's the best email API with webhooks for bounces and opens?
What's the best open-source or self-hosted transactional email server?
What's the cheapest way to send transactional email at scale?

More comparisons

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