# Lob vs Mailjoy: which do AI models recommend for direct mail, September 2026

GTM AI Recommendation Index, September 2026 Edition, Print. Zero of twelve models named Lob first on the direct prompt; zero named Mailjoy. Page: https://gtm-ai-index.com/marketing/print/lob-vs-mailjoy/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Lob | 9% | #2 of 11 | 27% | 48 | 12 of 12 |
| Mailjoy | 2% | #8 of 11 | 11% | 19 | 11 of 12 |

## The direct prompt, model by model

- Gemini 3.5 Flash: neither first, one named (first choices: Postalytics, Reachdesk) (alternatives: Alyce, Lob, Postal)
- Perplexity Sonar: neither first, one named (first choices: Postalytics) (alternatives: DirectMail.io, Lob, Sendoso)
- Grok 4.1 Fast: neither first, one named (first choices: Postalytics) (alternatives: Lob, PostGrid, Sendoso)
- Mistral Small: neither first, one named (first choices: Postalytics) (alternatives: Lob, PostGrid, Sendoso)
- DeepSeek V4 Flash: neither first, one named (first choices: Postalytics) (alternatives: Lob, PFL, Reachdesk, Sendoso)
- Kimi K2: neither first, one named (first choices: Postalytics) (alternatives: Lob, PFL, Sendoso)
- GLM 4.7 FlashX: neither first, one named (first choices: Postalytics) (alternatives: Lob, PostGrid, Postal, Reachdesk)
- MiniMax M2.5: neither first, one named (first choices: Postalytics) (alternatives: Lob, Postal, Sendoso, Stannp)
- Claude Haiku 4.5: neither named (first choices: PFL) (alternatives: PostGrid, Sendoso)
- GPT-5.4 mini: neither named (first choices: Sendoso) (alternatives: PFL)
- Llama 4 Maverick: neither named (first choices: Postalytics) (alternatives: Magileads)
- Qwen 3.7 Flash: neither named (first choices: Postalytics) (alternatives: Click2Mail, LetterStream, Sendoso)

## What the models said about Lob

- "Platforms to Avoid on a Tight Budget- Lob — Great API, but the $260–550/month platform fee" (DeepSeek V4 Flash, budget prompt, hard negative)
- "SaaS "Subscription Traps" to Avoid on a Budget ... they are not ideal for tight budgets" (Gemini 3.5 Flash, budget prompt, hard negative)
- "Steep Learning Curve: Complex API documentation and lack of guidance for non-developers" (GLM 4.7 FlashX, negative prompt, hard negative)
- "Postalytics or Lob are strong starting points if you want CRM-connected marketing automation" (Kimi K2, scale prompt, first choice)
- "1. Lob - API-First Platform ... Lob - Complete REST API, webhook support, postal IQ routing" (GLM 4.7 FlashX, comparative prompt, first choice)
- "Choose PostGrid or Lob if you want API-first, developer-controlled automation" (Perplexity Sonar, comparative prompt, first choice)

## What the models said about Mailjoy

- "pricing traps for your size: Mailjoy, Click2Mail, Printfection ... likely lack the governance, API depth, and attribution you need" (DeepSeek V4 Flash, scale prompt, soft negative)
- "Mailform, Mailjoy, and similar lightweight tools if you need enterprise governance, complex approvals, or robust automation" (Perplexity Sonar, negative prompt, soft negative)
- "If you want free/cheap testing: Start with Mailjoy or Postalytics free plan" (Mistral Small, budget prompt, first choice)
- "if you are looking for a platform with a simple, self-serve interface, Mailjoy or Click2Mail may be more suitable" (Llama 4 Maverick, negative prompt, alternative)
- "You want simple, self-serve postcards/letters: → Mailjoy or Click2Mail" (Qwen 3.7 Flash, comparative prompt, alternative)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.