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Transactional email APIs

Loops vs MailerSend

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

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Right now MailerSend is the one AI assistants mention more, scoring 10 overall versus Loops' 4, and showing up in 10 of 62 answers compared to Loops' 6 of 62. Claude rates MailerSend highest (21) and Loops at 11, while Perplexity gives MailerSend 11 and Loops 0. Head-to-head, MailerSend leads in 5 questions, Loops in 2, with 13 tied. Loops does best on React or JSX email template questions (2 of 3 answers), while MailerSend shows up most for cheap, high-volume sending and startup-focused questions (2 of 3 answers each). Neither is named for deliverability or self-hosted questions.

Head to head

metricLoopsMailerSend
score410
questions won58

By assistant

Loops

assistantscorenamed in, this weekusual spot, this week
ChatGPT35% of answers#6.0
Claude1125% of answers#9.8
Gemininot sampled this week
Perplexity00% of answers

MailerSend

assistantscorenamed in, this weekusual spot, this week
ChatGPT00% of answers
Claude2135% of answers#5.7
Gemininot sampled this week
Perplexity1115% of answers#3.7

Where they differ

Only Loops gets named for

  • What's the best email API with React or JSX email templates?
  • What's the best email API for a Next.js or serverless app?

Only MailerSend gets named for

  • What's the cheapest way to send transactional email at scale?
  • Which transactional email service is best for a startup?
  • What's the best transactional email provider for high volume at low cost?
  • Which email API has the best free tier?
  • What's the best email API for a European company that needs EU data hosting?

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