Sendoso vs Postie
Three of fourteen models named Sendoso first on the direct prompt; two named Postie. Sendoso was named by thirteen of the fourteen models and Postie by seven and Sendoso carries 36 labels and Postie 14, so the shares are not directly comparable.
Named in two 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
SendosoFirst choices, of fourteen modelsPostie
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 4.1 Fast | | | | |||
| 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 | | | | |
Sendoso Postie first choice named as an alternative argued againstblank: not namedEach cell is one answer, Sendoso on the left and Postie on the right.The direct prompt
Sendoso first, Postie not the choice
3 of 14 modelsPostie was named in the answer but not as the choice, or not at all.Postie first, Sendoso not the choice
2 of 14 modelsSendoso was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
5 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
4 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
Sendoso6%#3 of 10Postie6%#5 of 10Sendoso13%#2 of 8Postie0%#– of 8What 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
What the models said about Postie
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of four in this category shown.
“it can be pricey for newer startups ... though it may be less budget-friendly” Mistral Small · budget prompt · soft negative
“For companies with the most limited budgets, Postie and Click2Mail stand out because they offer pay-as-you-go pricing without monthly subscriptions.” Claude Haiku 4.5 · budget prompt · first choice
“Postie - offers performance direct mail for digital marketers, lookalike audiences, and real-time ROAS tracking.” Llama 4 Maverick · direct prompt · first choice
“Postie stands out for its ease of use, performance tracking, and B2B focus” Mistral Small · direct prompt · first choice
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.