Six of twelve models named ZeroBounce first on the direct prompt; one named Kickbox. Both were named by all twelve models and ZeroBounce carries 53 labels and Kickbox 27, so the shares are not directly comparable.
Named in three categories 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 email verification page.
Across every category in the September 2026 Edition, ZeroBounce and Kickbox were named in the same answer eighty-four times, of the 178 answers naming ZeroBounce and the 88 naming Kickbox. In those answers Kickbox took the first choice four times and ZeroBounce thirty-two.
| 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 |
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.
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Several providers (ZeroBounce, NeverBounce, Bouncer's monthly credits) expire credits, which punishes infrequent users” DeepSeek V4 Flash · budget prompt · soft negative
“Be Cautious About: Overpriced "Legacy" Providers... ZeroBounce charges up to $129 per 10,000 verifications” Gemini 3.5 Flash · negative prompt · soft negative
“premium enterprise tools like ZeroBounce charge ~$129 for 10,000 verifications” Gemini 3.5 Flash · budget prompt · soft negative
“Well-regarded alternatives with stronger track records in recent independent testing include Bouncer, ZeroBounce, Kickbox, and NeverBounce” Kimi K2 · negative prompt · first choice
“ZeroBounce (Best overall balance for mid-market) ... ZeroBounce for robust list hygiene + extras (top G2 pick for mid-market)” Grok 4.1 Fast · direct prompt · first choice
“ZeroBounce — Best Overall for Mid-Market ... Choose ZeroBounce if you want the safest bet with proven mid-market fit” Kimi K2 · direct prompt · first choice
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.
“The best email verification service for a mid-market B2B company is Hunter, Clearout, or Kickbox” Llama 4 Maverick · direct prompt · first choice
“or Kickbox if you want point-of-entry validation integrated into your existing tech stack.” Claude Haiku 4.5 · paraphrase prompt · first choice
“include Bouncer, ZeroBounce, Kickbox, and NeverBounce” Kimi K2 · negative 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.