# Print for enterprise buyers: what AI models recommend, September 2026

GTM AI Recommendation Index, September 2026 Edition. Asked as "direct mail automation platform" and as "print and direct mail marketing tool", six framings each, to twelve models with search on, on behalf of an enterprise B2B company. Page: https://gtm-ai-index.com/marketing/print/enterprise/

**Standing:** Lob leads with 37% of first choices; verdict contested. 43 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | Lob | 37% | 15% | 53 |
| 2 | PFL | 16% | 10% | 31 |
| 3 | Sendoso | 12% | 29% | 49 |
| 4 | PostGrid | 9% | 19% | 42 |
| 5 | Postalytics | 9% | 22% | 41 |
| 6 | Reachdesk | 2% | 32% | 22 |
| 7 | Inkit | 0% | 10% | 10 |
| 8 | Postal | 0% | 40% | 10 |
| 9 | Click2Mail | 0% | 80% | 10 |

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: PFL; alternatives LettrLabs, PostGrid, Postalytics
- GPT-5.4 mini: Lob; alternatives Reachdesk, Sendoso
- Gemini 3.5 Flash: PFL; alternatives Lob, Reachdesk, Sendoso
- Perplexity Sonar: CM.com; alternatives PostGrid, Postalytics
- Grok 4.1 Fast: Lob; alternatives PostGrid, Sendoso
- Mistral Small: Lob; alternatives PFL, Postalytics, Reachdesk, Sendoso
- DeepSeek V4 Flash: Lob; alternatives PFL, Sendoso
- Llama 4 Maverick: PostGrid; alternatives Lob, Postalytics, Sendoso
- Qwen 3.7 Flash: Sendoso; alternatives Inkit, Lob
- Kimi K2: PFL, Sendoso; alternatives Lob, Reachdesk
- GLM 4.7 FlashX: Postalytics; alternatives Lob, Oppizi, PostGrid
- MiniMax M2.5: Reachdesk, Sendoso; alternatives PFL, Postalytics

## Sources the answers cite

24 of 72 answers came back with a source list, from 4 of 12 models. Sites named in the most answers:

- lob.com: 12 answers, 22 citations
- postgrid.com: 11 answers, 16 citations
- postalytics.com: 8 answers, 12 citations
- guideflow.com: 8 answers, 8 citations
- cience.com: 7 answers, 7 citations
- g2.com: 7 answers, 7 citations
- gartner.com: 7 answers, 7 citations
- businessage.com: 6 answers, 6 citations

Pages named in the most answers:

- https://guideflow.com/blog/direct-mail-automation-software (8 answers)
- https://cience.com/blog/direct-mail-automation-software (7 answers)
- https://businessage.com/post/5-best-direct-mail-automation-software-platforms (6 answers)
- https://gartner.com/reviews/market/direct-mail-automation-software (6 answers)
- https://lob.com/ (6 answers)
- https://postalytics.com/ (6 answers)
- https://postgrid.com/direct-mail-automation-software (6 answers)
- https://thecmo.com/tools/best-direct-mail-marketing-software (5 answers)
- https://g2.com/categories/direct-mail-automation (4 answers)
- https://lob.com/blog/why-lob-is-the-best-direct-mail-automation-platform-for-marketing-agencies (4 answers)

## Warned against

- Sendoso: 14 of 49 labels negative. "Avoid: "Corporate Gifting & ABM" Platforms for High-Volume Mail * Examples: Sendoso, Postal.io, Reachdesk" (Gemini 3.5 Flash, negative prompt)
- PostGrid: 8 of 42 labels negative. "PostGrid — Caution for Mid-Market Scaling ... the pricing gap and gated enterprise features create procurement friction" (Kimi K2, negative prompt)
- Postalytics: 9 of 41 labels negative. "Be Cautious About: Campaign-First "Self-Serve" Platforms (for Transactional Needs) * Examples: Postalytics" (Gemini 3.5 Flash, negative prompt)
- Lob: 8 of 53 labels negative. "platforms that large enterprises should avoid or approach with extreme caution... ### Lob Major Red Flags:" (GLM 4.7 FlashX, negative prompt)

## Record

- Method: https://gtm-ai-index.com/methodology/
- Raw judge labels and full responses: https://gtm-ai-index.com/data/
- License: CC BY 4.0. Cite as GTM AI Recommendation Index, September 2026 Edition, gtm-ai-index.com.