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Transactional email APIs

Brevo vs Mailjet

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

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Brevo clearly outpaces Mailjet in AI answers right now, showing up in 20 of 62 responses versus Mailjet's 8, with overall scores of 23 and 9. Both get a perfect 3 of 3 mentions for EU data hosting, and Brevo also sweeps the best-free-tier and marketing-plus-API questions. Head to head, Brevo is named more often on 8 questions, Mailjet on none, with 12 ties. Neither gets named for deliverability, high-volume-at-low-cost, self-hosted servers, or webhook-related questions. By the numbers, Brevo is the more visible pick today.

Head to head

metricBrevoMailjet
score239
questions won105

By assistant

Brevo

assistantscorenamed in, this weekusual spot, this week
ChatGPT1415% of answers#1.3
Claude2135% of answers#5.3
Gemininot sampled this week
Perplexity3445% of answers#3.1

Mailjet

assistantscorenamed in, this weekusual spot, this week
ChatGPT710% of answers#3.5
Claude1220% of answers#5.8
Gemininot sampled this week
Perplexity710% of answers#3.5

Where they differ

Only Brevo gets named for

  • What's the best email API that also handles marketing campaigns?
  • What are the best transactional email APIs?
  • What's the best email service for sending receipts and order confirmations?
  • What's the best email API for developers?
  • What's the best email API for a Next.js or serverless app?

Only Mailjet gets named for

nothing exclusive

More comparisons

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Scores count how often each assistant names a product, weighted by position. How the score works · Full Transactional email APIs leaderboard