Postalytics vs Sendoso
Five of fourteen models named Postalytics first on the direct prompt; three named Sendoso. Postalytics was named by fourteen of the fourteen models and Sendoso by thirteen and Postalytics carries 56 labels and Sendoso 36, so the shares are not directly comparable.
Named in three categories this edition.
Named in two categories this edition.
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; every quote names the model and the prompt it came from. Both figures come from the print page.
By framing
PostalyticsFirst choices, of fourteen modelsSendoso
Across every category in the October 2026 Edition, Postalytics and Sendoso were named in the same answer 117 times, of the 192 answers naming Postalytics and the 323 naming Sendoso. In those answers Sendoso took the first choice fourteen times and Postalytics forty-two.
Every model, every framing
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | | | ||
| GPT-5.4 mini | | | | |||
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | | |||
| Grok 4.20 | | | | | | |
| Mistral Small | | | | | ||
| DeepSeek V4 Flash | | | | | | |
| Llama 4 Maverick | ||||||
| Qwen 3.7 Flash | | | | | ||
| Kimi K2 | | | | | | |
| GLM 4.7 FlashX | | | | | ||
| MiniMax M2.5 | | | | | | |
| GPT-6 Luna | | | | | | |
| Muse Glimmer 30B | | | | | | |
Postalytics Sendoso first choice named as an alternative argued againstblank: not namedEach cell is one answer, Postalytics on the left and Sendoso on the right.The direct prompt
Postalytics first, Sendoso an alternative
5 of 14 modelsSendoso was named in the answer but not as the choice, or not at all.Sendoso first, Postalytics not the choice
3 of 14 modelsPostalytics was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
4 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
2 of 14 modelsThe answer made no first choice from these two in this category.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
Postalytics53%#1 of 9Sendoso2%#6 of 9Postalytics44%#1 of 10Sendoso6%#3 of 10Sendoso13%#2 of 8Postalytics9%#4 of 8What the models said about Postalytics
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.
“Postalytics ($199+/mo) ... often require subscriptions, making them pricier for sporadic use.” Grok 4.20 · budget prompt · soft negative
“it is recommended to be cautious about, especially for complex or multi-step mail journeys” Mistral Small · negative prompt · soft negative
“The G2 profile I found had only 13 reviews. That's a *limited evidence base*” GPT-6 Luna · negative prompt · soft negative
“Best for CRM-driven campaign speed: Postalytics is often cited as default starting point for marketing teams with free tier and strong tracking.” Muse Glimmer 30B · scale prompt · first choice
“I'd start with Postalytics. It's a good default when marketing wants to build and automate campaigns without relying on engineering” GPT-6 Luna · direct prompt · first choice
“Best Overall for Marketing Teams: Postalytics ... widely considered the best balance of affordability and functionality” Qwen 3.7 Flash · budget prompt · first choice
What the models said about Sendoso
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.
“Several AI models recommend avoiding it for direct mail automation due to negative feedback and limitations in scalability and pricing transparency.” Mistral Small · negative prompt · hard negative
“Sendoso is the biggest platform to avoid unless you have a massive budget and can tolerate poor support.” Kimi K2 · negative prompt · hard negative
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.