Stannp vs Sendoso
Zero of twelve models named Stannp first on the direct prompt; one named Sendoso. Stannp was named by nine of the twelve models and Sendoso by twelve and Stannp carries 21 labels and Sendoso 45, so the shares are not directly comparable.
Named in one category this edition.
Named in one category this edition.
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
StannpFirst choices, of twelve modelsSendoso
Across every category in the September 2026 Edition, Stannp and Sendoso were named in the same answer thirty-one times, of the 51 answers naming Stannp and the 125 naming Sendoso. In those answers Sendoso took the first choice zero times and Stannp four.
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 | | | |
Stannp Sendoso first choice named as an alternative argued againstblank: not namedEach cell is one answer, Stannp on the left and Sendoso on the right.The direct prompt
Sendoso first, Stannp not the choice
1 of 12 modelsStannp was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
8 of 12 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
3 of 12 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
Sendoso12%#3 of 9Stannp0%#– of 9What the models said about Stannp
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.
“Start with Click2Mail (no monthly fees) or Stannp ($0-$12/month) to test direct mail without commitment.” Kimi K2 · budget prompt · first choice
“Safer Alternatives to Consider ... Stannp | Very low | 4.8/5 G2 rating, affordable pricing” Kimi K2 · negative prompt · first choice
“Stannp (4.8/5 on G2) – good address verification, tracking, and support” DeepSeek V4 Flash · negative 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. Six of eight in this category shown.
“Platforms with Significant Concerns ... Sendoso (and Postal.io - now acquired by Sendoso) Key Red Flags: Non-refundable prepaid balances that expire” Kimi K2 · negative prompt · hard negative
“Non-refundable preloaded funds: Once you add funds to the platform, you cannot withdraw them. This is a major lock-in risk” DeepSeek V4 Flash · negative prompt · hard negative
“High Costs: Can be expensive, especially for larger teams” GLM 4.7 FlashX · negative prompt · hard negative
“Sendoso is the safest "best overall" pick if you want a broad, mature direct mail automation platform” GPT-5.4 mini · direct prompt · first choice
“Sendoso is the dominant ecosystem for "sending management"” Gemini 3.5 Flash · comparative prompt · first choice
“Sendoso is a top-rated direct mail automation platform” Claude Haiku 4.5 · comparative 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.