# PostGrid vs Reachdesk: which do AI models recommend for direct mail, October 2026

GTM AI Recommendation Index, October 2026 Edition, Print. One of fourteen models named PostGrid first on the direct prompt; one named Reachdesk. Page: https://gtm-ai-index.com/marketing/print/postgrid-vs-reachdesk/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| PostGrid | 2% | #7 of 10 | 32% | 38 | 13 of 14 |
| Reachdesk | 2% | #8 of 10 | 24% | 25 | 12 of 14 |

## The direct prompt, model by model

- Perplexity Sonar: postgrid first (first choices: PostGrid) (alternatives: Reachdesk)
- Gemini 3.5 Flash: reachdesk first (first choices: Reachdesk) (alternatives: Alyce, Lob, PostGrid, Postal, Postalytics, Sendoso)
- GLM 4.7 FlashX: neither first, one named (first choices: Postalytics) (alternatives: Lob, PostGrid, Postal, Sendoso)
- GPT-6 Luna: neither first, one named (first choices: Postalytics) (alternatives: Lob, Postal, Reachdesk)
- Muse Glimmer 30B: neither first, one named (first choices: PFL - Printing For Less) (alternatives: Lob, Postal, Postalytics, Reachdesk, Sendoso)
- Claude Haiku 4.5: neither named (first choices: Postalytics) (alternatives: Lob, Sendoso)
- GPT-5.4 mini: neither named (first choices: Sendoso) (alternatives: PFL)
- Grok 4.1 Fast: neither named (first choices: Sendoso) (alternatives: Lob, PostGrid Print & Mail)
- Mistral Small: neither named (first choices: Postie) (alternatives: PFL, Postalytics)
- DeepSeek V4 Flash: neither named (first choices: Postalytics) (alternatives: Lob, PFL, Postal, Postie, Sendoso)
- Llama 4 Maverick: neither named (first choices: Postie) (alternatives: Postal)
- Qwen 3.7 Flash: neither named (first choices: Sendoso) (alternatives: CIENCE, Cobro, Lob, PebblePost)
- Kimi K2: neither named (first choices: Lob, Postal) (alternatives: PFL, Postalytics)
- MiniMax M2.5: neither named (first choices: Postalytics) (alternatives: PFL Direct Mail Platform)

## What the models said about PostGrid

- "here are the direct mail automation platforms you should avoid or approach with caution... 2. PostGrid ... Faulty tracking" (Kimi K2, negative prompt, hard negative)
- "Postgrid is frequently cited in reviews for having significant operational flaws, leading to a low Trustpilot rating of 2.9/5." (GLM 4.7 FlashX, negative prompt, hard negative)
- "Platforms to Approach with Caution or Avoid: PostGrid ... Best Avoid If: You need reliable support, tracking, or non-US mailing." (Grok 4.1 Fast, negative prompt, hard negative)
- "PostGrid and Lob are strongest for pure direct mail automation, with PostGrid favored for API-centric workflows and Lob for marketing team usability." (MiniMax M2.5, comparative prompt, first choice)
- "PostGrid is the safest "best direct mail automation platform" pick for a mid-market B2B company" (Perplexity Sonar, direct prompt, first choice)
- "with PostGrid and Lob most often cited for API-first print-and-mail automation" (Perplexity Sonar, comparative prompt, first choice)

## What the models said about Reachdesk

- "Reachdesk is mentioned as a platform to avoid for high-volume direct mail automation" (Mistral Small, negative prompt, hard negative)
- "Reachdesk has emerged as the premier choice for scaling mid-market B2B organizations that want deep integration, global reach, and reliable ROI without the white-glove price tag of Enterprise Sendoso." (Gemini 3.5 Flash, direct prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen 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.