Index › Marketing › Direct mail › Lob vs PostGrid

Print · September 2026 Edition

Lob vs PostGrid

Zero of twelve models named Lob first on the direct prompt; zero named PostGrid. Both were named by all twelve models and Lob carries 48 labels and PostGrid 40, so the shares are not directly comparable.

Lob

criticized challenger

Named in one category this edition.

PostGrid

criticized challenger

Named in one category this edition.

First-choice share9%7%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.

Negative rate27%25%Negative labels as a share of the product's labels, 0 to 100.

Rank in category#2#4A position in a field of 11; printed, not drawn.

Labels4840A count; the two differ.

The two percentage rows are drawn on one 0 to 100 track, Lob reading right to left. Rank and label count are printed, not drawn.Postalytics was named alongside these two in ten of the twelve direct answers. Postalytics vs Lob · Postalytics vs PostGrid · Lob vs Stannp

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; every quote names the model and the prompt it came from. Both figures come from the print page.

By framing

How many of the twelve models made each the first choice, per way of asking, and how many argued against it.

LobFirst choices, of twelve modelsPostGrid

Direct00

Paraphrase221 against Lob

Comparative53

Budget-constrained003 against Lob · 2 against PostGrid

Scale-constrained21

Negative009 against Lob · 8 against PostGrid

Bars are first choices, 0 to 12 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to twelve.

Across every category in the September 2026 Edition, Lob and PostGrid were named in the same answer ninety-one times, of the 154 answers naming Lob and the 110 naming PostGrid. In those answers PostGrid took the first choice nine times and Lob twenty-four.

Every model, every framing

The seventy-two answers behind the chart above, one cell each: where Lob and PostGrid stood in it.

Model	DirectLO	ParaphraseLO	ComparativeLO	Budget-constrainedLO	Scale-constrainedLO	NegativeLO
Claude Haiku 4.5			LO
GPT-5.4 mini		LO	LO
Gemini 3.5 Flash	LO	LO	LO	LO		LO
Perplexity Sonar	LO		LO	LO		LO
Grok 4.1 Fast	LO	LO	LO	LO	LO	LO
Mistral Small	LO		LO			LO
DeepSeek V4 Flash	LO	LO	LO	LO	LO	LO
Llama 4 Maverick
Qwen 3.7 Flash		LO	LO			LO
Kimi K2	LO	LO	LO	LO	LO	LO
GLM 4.7 FlashX	LO		LO			LO
MiniMax M2.5	LO	LO	LO			LO

LO Lob

PostGridLO first choiceLO named as an alternativeLO argued againstblank: not namedEach cell is one answer, Lob on the left and PostGrid on the right.

The direct prompt

The plain question, one answer per model, grouped by where Lob and PostGrid stood in it.

Neither was the first choice, one was named

9 of 12 modelsThe answer put something else first and named one of the two as an alternative.

Claude Haiku 4.5PFL alternatives: PostGrid, Sendoso

Gemini 3.5 FlashPostalytics, Reachdesk alternatives: Alyce, Lob, Postal

Perplexity SonarPostalytics alternatives: DirectMail.io, Lob, Sendoso

Grok 4.1 FastPostalytics alternatives: Lob, PostGrid, Sendoso

Mistral SmallPostalytics alternatives: Lob, PostGrid, Sendoso

DeepSeek V4 FlashPostalytics alternatives: Lob, PFL, Reachdesk, Sendoso

Kimi K2Postalytics alternatives: Lob, PFL, Sendoso

GLM 4.7 FlashXPostalytics alternatives: Lob, PostGrid, Postal, Reachdesk

MiniMax M2.5Postalytics alternatives: Lob, Postal, Sendoso, Stannp

Neither was named

3 of 12 modelsThe answer made no first choice from these two in this category.

GPT-5.4 miniSendoso alternatives: PFL

Llama 4 MaverickPostalytics alternatives: Magileads

Qwen 3.7 FlashPostalytics alternatives: Click2Mail, LetterStream, Sendoso

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.

Small business

Lob leads by eight points.

Lob#3 of 9

PostGrid#6 of 9

The full small business standing →

Mid-marketThe figures above

Lob leads by two points.

Lob#2 of 11

PostGrid#4 of 11

The full mid-market standing →

Enterprise

Lob leads by twenty-eight points.

Lob#1 of 9

PostGrid#4 of 9

The full enterprise standing →

What the models said about Lob

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.

“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 PostGrid

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.

“Platforms to Avoid on a Tight Budget ... Postgrid — Cheaper API alternative ($0–99/mo), but pricing is often quote-based” DeepSeek V4 Flash · budget prompt · hard negative

“Avoid Lob ($260-$550/month) and PostGrid unless you need API-first development capabilities” Kimi K2 · budget prompt · hard negative

“Platforms to Avoid or Be Cautious About ... 1. Postgrid - Poor Customer Support” GLM 4.7 FlashX · negative prompt · hard negative

“PostGrid is best for revenue ops teams needing API-driven direct mail triggered by CRM events (rated 9.3/10 overall)” MiniMax M2.5 · comparative prompt · first choice

“Choose PostGrid or Lob if you want API-first, developer-controlled automation” Perplexity Sonar · comparative prompt · first choice

“I'd recommend starting with PostGrid due to its: Strong B2B focus” Mistral Small · paraphrase prompt · first choice

Also compared

Postalytics vs Lob Postalytics vs PostGrid Lob vs Stannp Lob vs Sendoso Lob vs Click2Mail Lob vs PFL Lob vs Mailjoy Stannp vs PostGrid PostGrid vs Sendoso PostGrid vs Click2Mail PostGrid vs PFL PostGrid vs Mailjoy All twenty-eight head-to-head pages and the full direct mail standing

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.