GTM AI Index
Index Marketing Direct mail › PostGrid vs PFL
Print · September 2026 Edition

PostGrid vs PFL

Zero of twelve models named PostGrid first on the direct prompt; one named PFL. PostGrid was named by twelve of the twelve models and PFL by ten and PostGrid carries 40 labels and PFL 23, so the shares are not directly comparable.

PostGrid

criticized challenger

Named in one category this edition.

PFL

criticized challenger

Named in one category this edition.

First-choice share7%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate25%26%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#7A position in a field of 11; printed, not drawn.
Labels4023A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, PostGrid 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 PostGrid · Postalytics vs PFL · Lob vs PostGrid

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.
PostGridFirst choices, of twelve modelsPFL
Direct011 against PFL
Paraphrase212 against PFL
Comparative30
Budget-constrained002 against PostGrid
Scale-constrained10
Negative008 against PostGrid · 3 against PFL
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, PostGrid and PFL were named in the same answer forty-three times, of the 110 answers naming PostGrid and the 63 naming PFL. In those answers PFL took the first choice six times and PostGrid six.

Every model, every framing

The seventy-two answers behind the chart above, one cell each: where PostGrid and PFL stood in it.
ModelDirectPFParaphrasePFComparativePFBudget-constrainedPFScale-constrainedPFNegativePF
Claude Haiku 4.5PFPF
GPT-5.4 miniPF
Gemini 3.5 Flash
Perplexity SonarPFPF
Grok 4.1 FastPFPF
Mistral SmallPF
DeepSeek V4 FlashPFPFPFPFPF
Llama 4 Maverick
Qwen 3.7 FlashPFPF
Kimi K2PFPFPF
GLM 4.7 FlashX
MiniMax M2.5
PostGridPF PFL first choice named as an alternative argued againstblank: not namedEach cell is one answer, PostGrid on the left and PFL on the right.

The direct prompt

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

PFL first, PostGrid an alternative

1 of 12 modelsPostGrid was named in the answer but not as the choice, or not at all.
Claude Haiku 4.5PFL alternatives: PostGrid, Sendoso

Neither was the first choice, one was named

6 of 12 modelsThe answer put something else first and named one of the two as an alternative.
GPT-5.4 miniSendoso alternatives: PFL
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

Neither was named

5 of 12 modelsThe answer made no first choice from these two in this category.
Gemini 3.5 FlashPostalytics, Reachdesk alternatives: Alyce, Lob, Postal
Perplexity SonarPostalytics alternatives: DirectMail.io, Lob, Sendoso
Llama 4 MaverickPostalytics alternatives: Magileads
Qwen 3.7 FlashPostalytics alternatives: Click2Mail, LetterStream, Sendoso
MiniMax M2.5Postalytics alternatives: Lob, Postal, Sendoso, Stannp

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
PostGrid leads by two points.
PostGrid2%#6 of 9
PFL0%#– of 9
The full small business standing →
Mid-marketThe figures above
PostGrid leads by two points.
PostGrid7%#4 of 11
PFL4%#7 of 11
The full mid-market standing →
Enterprise
The order flips: PFL leads at enterprise.
PFL16%#2 of 9
PostGrid9%#4 of 9
The full enterprise standing →

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

What the models said about PFL

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

“Takes significant time to launch campaigns... Pricing can be prohibitive for smaller teams” Kimi K2 · negative prompt · soft negative
“Primary Concerns: Operational Transparency & Speed ... "quote-only" pricing structures” Qwen 3.7 Flash · negative prompt · soft negative
“heavier setup and higher cost — generally more enterprise-oriented than "mid-sized."” DeepSeek V4 Flash · paraphrase prompt · soft negative
“PFL commands roughly 75% market share ... PFL suits mid-market and enterprise teams that prioritize print quality and deep, reliable integrations” Claude Haiku 4.5 · direct prompt · first choice
“Best Overall Recommendation: PFL” Claude Haiku 4.5 · paraphrase prompt · first choice
“Runner-up: PFL if you need more sophisticated B2B orchestration and multi-channel campaigns.” Mistral Small · paraphrase prompt · alternative
Also compared

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.