{
  "@context": "https://schema.org",
  "@type": "Dataset",
  "name": "AIPickRank \u2014 Transactional Email Consensus",
  "description": "Deterministic multi-model evaluation dataset analyzing which transactional email providers leading AI models (GPT, Claude, Gemini) recommend across 30 standardized queries and 90 independent evaluations. Includes consensus pickScores, mention rates, and average declared positions.",
  "identifier": "aipickrank:transactional-email:v1",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "creator": {
    "@type": "Organization",
    "name": "AIPickRank",
    "url": "https://aipickrank.com"
  },
  "dateModified": "2026-09-19T15:30:00Z",
  "measurementTechnique": "Deterministic multi-model prompt evaluation",
  "variableMeasured": [
    {
      "@type": "PropertyValue",
      "name": "pickScore",
      "minValue": 0,
      "maxValue": 100
    },
    {
      "@type": "PropertyValue",
      "name": "mentionRate",
      "unitText": "PERCENT"
    },
    {
      "@type": "PropertyValue",
      "name": "avgDeclaredPosition"
    }
  ],
  "distribution": [
    {
      "@type": "DataDownload",
      "encodingFormat": "application/json",
      "contentUrl": "https://aipickrank.com/data/transactional-email-v1.json"
    }
  ],
  "providers": [
    {
      "rank": 1,
      "name": "Postmark",
      "domain": "postmarkapp.com",
      "subniche": "Deliverability & fast transactional receipts",
      "pickScore": 90.9,
      "scores": {
        "all": 90.9,
        "cla": 100.0,
        "gem": 83.4,
        "gpt": 89.3
      },
      "mentionRate": 94,
      "avgDeclaredPos": 1.6,
      "sample": 90
    },
    {
      "rank": 2,
      "name": "Resend",
      "domain": "resend.com",
      "subniche": "Developer experience, Next.js & React Email",
      "pickScore": 80.6,
      "scores": {
        "all": 80.6,
        "cla": 83.3,
        "gem": 85.8,
        "gpt": 72.6
      },
      "mentionRate": 79,
      "avgDeclaredPos": 1.1,
      "sample": 90
    },
    {
      "rank": 3,
      "name": "Amazon SES",
      "domain": "aws.amazon.com",
      "subniche": "Lowest cost at scale & AWS ecosystem",
      "pickScore": 76.8,
      "scores": {
        "all": 76.8,
        "cla": 73.0,
        "gem": 80.0,
        "gpt": 77.4
      },
      "mentionRate": 82,
      "avgDeclaredPos": 3.9,
      "sample": 90
    },
    {
      "rank": 4,
      "name": "SendGrid",
      "domain": "sendgrid.com",
      "subniche": "Industry standard & mature ecosystem",
      "pickScore": 67.6,
      "scores": {
        "all": 67.6,
        "cla": 60.0,
        "gem": 71.7,
        "gpt": 71.0
      },
      "mentionRate": 69,
      "avgDeclaredPos": 3.0,
      "sample": 90
    },
    {
      "rank": 5,
      "name": "Mailgun",
      "domain": "mailgun.com",
      "subniche": "API power & inbound webhook parsing",
      "pickScore": 61.0,
      "scores": {
        "all": 61.0,
        "cla": 40.5,
        "gem": 70.0,
        "gpt": 72.3
      },
      "mentionRate": 60,
      "avgDeclaredPos": 2.2,
      "sample": 90
    },
    {
      "rank": 6,
      "name": "Brevo",
      "domain": "brevo.com",
      "subniche": "Budget-friendly & all-in-one platform",
      "pickScore": 31.3,
      "scores": {
        "all": 31.3,
        "cla": 16.7,
        "gem": 30.5,
        "gpt": 46.9
      },
      "mentionRate": 32,
      "avgDeclaredPos": 3.2,
      "sample": 90
    },
    {
      "rank": 7,
      "name": "SparkPost",
      "domain": "sparkpost.com",
      "subniche": "Enterprise analytics & high deliverability",
      "pickScore": 24.4,
      "scores": {
        "all": 24.4,
        "cla": 20.0,
        "gem": 16.7,
        "gpt": 36.7
      },
      "mentionRate": 24,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 8,
      "name": "MailerSend",
      "domain": "mailersend.com",
      "subniche": "Modern dev-friendly alternative",
      "pickScore": 15.0,
      "scores": {
        "all": 15.0,
        "cla": 16.7,
        "gem": 21.7,
        "gpt": 6.7
      },
      "mentionRate": 13,
      "avgDeclaredPos": 2.0,
      "sample": 90
    },
    {
      "rank": 9,
      "name": "Loops",
      "domain": "loops.so",
      "subniche": "SaaS lifecycle + transactional email in one",
      "pickScore": 12.2,
      "scores": {
        "all": 12.2,
        "cla": 16.7,
        "gem": 16.7,
        "gpt": 3.3
      },
      "mentionRate": 12,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 10,
      "name": "Mailjet",
      "domain": "mailjet.com",
      "subniche": "European data residency & multi-user teams",
      "pickScore": 10.0,
      "scores": {
        "all": 10.0,
        "cla": 6.7,
        "gem": 3.3,
        "gpt": 20.0
      },
      "mentionRate": 10,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 11,
      "name": "SMTP2GO",
      "domain": "smtp2go.com",
      "subniche": "Simple SMTP relay & high uptime",
      "pickScore": 7.8,
      "scores": {
        "all": 7.8,
        "cla": 6.7,
        "gem": 0.0,
        "gpt": 16.7
      },
      "mentionRate": 8,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 12,
      "name": "ZeptoMail",
      "domain": "zoho.com",
      "subniche": "Zoho ecosystem & dedicated transactional",
      "pickScore": 5.6,
      "scores": {
        "all": 5.6,
        "cla": 3.3,
        "gem": 10.0,
        "gpt": 3.3
      },
      "mentionRate": 6,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 13,
      "name": "Scaleway Transactional Email",
      "domain": "scaleway.com",
      "subniche": "EU cloud sovereign email delivery",
      "pickScore": 3.3,
      "scores": {
        "all": 3.3,
        "cla": 10.0,
        "gem": 0.0,
        "gpt": 0.0
      },
      "mentionRate": 3,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 14,
      "name": "Courier",
      "domain": "courier.com",
      "subniche": "Multi-channel notification infrastructure",
      "pickScore": 2.2,
      "scores": {
        "all": 2.2,
        "cla": 0.0,
        "gem": 0.0,
        "gpt": 6.7
      },
      "mentionRate": 2,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 15,
      "name": "Mailchimp Transactional",
      "domain": "mailchimp.com",
      "subniche": "Transactional extension for Mailchimp",
      "pickScore": 2.2,
      "scores": {
        "all": 2.2,
        "cla": 0.0,
        "gem": 0.0,
        "gpt": 6.7
      },
      "mentionRate": 2,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 16,
      "name": "Postal",
      "domain": "postalserver.io",
      "subniche": "Self-hosted open source mail server",
      "pickScore": 2.2,
      "scores": {
        "all": 2.2,
        "cla": 6.7,
        "gem": 0.0,
        "gpt": 0.0
      },
      "mentionRate": 2,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 17,
      "name": "Netcore Cloud",
      "domain": "netcorecloud.com",
      "subniche": "Enterprise deliverability and high volume",
      "pickScore": 0.0,
      "scores": {
        "all": 0.0,
        "cla": 0.0,
        "gem": 0.0,
        "gpt": 0.0
      },
      "mentionRate": 0,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 18,
      "name": "Oracle Cloud Infrastructure Email Delivery",
      "domain": "oracle.com",
      "subniche": "Oracle Cloud integrated delivery",
      "pickScore": 0.0,
      "scores": {
        "all": 0.0,
        "cla": 0.0,
        "gem": 0.0,
        "gpt": 0.0
      },
      "mentionRate": 0,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 19,
      "name": "Plunk",
      "domain": "useplunk.com",
      "subniche": "Lightweight open source alternative",
      "pickScore": 0.0,
      "scores": {
        "all": 0.0,
        "cla": 0.0,
        "gem": 0.0,
        "gpt": 0.0
      },
      "mentionRate": 0,
      "avgDeclaredPos": null,
      "sample": 90
    },
    {
      "rank": 20,
      "name": "SendLayer",
      "domain": "sendlayer.com",
      "subniche": "WordPress & SMTP transaction relay",
      "pickScore": 0.0,
      "scores": {
        "all": 0.0,
        "cla": 0.0,
        "gem": 0.0,
        "gpt": 0.0
      },
      "mentionRate": 0,
      "avgDeclaredPos": null,
      "sample": 90
    }
  ]
}