Does AI recommend Resend?

Across 6 AI models, Resend is the first email pick in 61% of answers (#1 of 3) and is mentioned in 100%. It is installed in 55% of the apps the models build. Runner-up: Postmark 37%.

61%

Recommended as the top pick

#1 of 3 · Runner-up: Postmark 37%

100%

Mentioned at all

Named anywhere in the recommendation

55%

Adopted in generated code

#1 of 4 · Runner-up: Nodemailer (SMTP) 32%

Version check. When AI models install resend, they pin an older major than the latest (6.32.0) in 100% of the 69 apps we checked. More on AI and stale versions.

What AI recommends first for email

Share of 180 answers across 6 models

Resend

61%

Postmark

37%

Amazon SES

Used in AI-built apps

Share of 120 answers across 6 models

Resend

55%

Nodemailer (SMTP)

32%

Buttondown

Mailchimp

Compare Resend

Get the full breakdown for Resend

Results for each of the 6 models and each developer context, who gets picked instead, and real excerpts of AI answers. Free, by email.

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Measured 2026-10-01 with claude-sonnet-5.5, gpt-6.1-sol, gemini-3.8-flash, grok-4.7, deepseek-v4.1-flash, qwen3.8-max-prime, 5 runs per recommendation prompt and 5 per build prompt, via public APIs with no system prompt. Methodology. DefaultRank is independent and not affiliated with any tool vendor or model provider.