Email · October 2026
Mailgun vs Resend: which do AI models pick?
Resend leads on being recommended first (61% vs 0%). Resend leads on being installed in AI-built apps (55% vs 0%).
MailgunResend
| Mailgun | Resend | |
|---|---|---|
| Rank among email tools recommended first | not ranked | #1 of 3 |
| Rank in AI-built apps | not ranked | #1 of 4 |
| More detail | Mailgun page | Resend page |
Based on 180 recommendation answers and 120 AI-built apps. Differences under about 7 points are within noise.
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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.