Apollo.io vs ZoomInfo
Ten of twelve models named Apollo.io first on the direct prompt; zero named ZoomInfo. Both were named by all twelve models and Apollo.io carries 64 labels and ZoomInfo 52, so the shares are not directly comparable.
San Francisco, United States, founded 2015. Named in twenty categories this edition.
Vancouver, Washington, United States, founded 2000. Named in eighteen categories 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 data enrichment page.
By framing
Apollo.ioFirst choices, of twelve modelsZoomInfo
Across every category in the September 2026 Edition, Apollo.io and ZoomInfo were named in the same answer 442 times, of the 858 answers naming Apollo.io and the 675 naming ZoomInfo. In those answers ZoomInfo took the first choice sixty-two times and Apollo.io 180.
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 | | | | | |
Apollo.io ZoomInfo first choice named as an alternative argued againstblank: not namedEach cell is one answer, Apollo.io on the left and ZoomInfo on the right.The direct prompt
Apollo.io first, ZoomInfo an alternative
10 of 12 modelsZoomInfo was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
1 of 12 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
1 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
Apollo.io76%#1 of 10ZoomInfo0%#10 of 10Apollo.io70%#1 of 10ZoomInfo2%#7 of 10ZoomInfo46%#1 of 9Apollo.io7%#5 of 9What the models said about Apollo.io
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of three in this category shown.
“Tools with Significant Data Quality Issues ... Bounce rates of 20-35% reported by multiple users, even for emails labeled "verified"” MiniMax M2.5 · negative prompt · hard negative
“Be cautious with these B2B data enrichment tools... Apollo.io: Frequently criticized for 15-30% email bounce rates” Grok 4.1 Fast · negative prompt · hard negative
“Apollo.io is widely recommended for budget-conscious teams.... Apollo provides more functionality at a lower price point than almost any competitor” Claude Haiku 4.5 · budget prompt · first choice
What the models said about ZoomInfo
No label in this category carried a quote.
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.