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Index Sales AI SDR › Apollo.io vs AiSDR
AI SDR agents · September 2026 Edition

Apollo.io vs AiSDR

One of twelve models named Apollo.io first on the direct prompt; zero named AiSDR. Apollo.io was named by eleven of the twelve models and AiSDR by twelve and Apollo.io carries 23 labels and AiSDR 37, so the shares are not directly comparable.

Apollo.io

accepted challenger

San Francisco, United States, founded 2015. Named in twenty categories this edition.

AiSDR

accepted challenger

By AiSDR Inc., San Francisco, United States, founded 2023. Named in one category this edition.

First-choice share20%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate4%11%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#5A position in a field of 11; printed, not drawn.
Labels2337A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Apollo.io reading right to left. Rank and label count are printed, not drawn.Reply.io was named alongside these two in seven of the twelve direct answers. Apollo.io vs Artisan · Apollo.io vs Amplemarket · Apollo.io vs Salesforge

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 AI SDR agents page.

By framing

How many of the twelve models made each the first choice, per way of asking, and how many argued against it.
Apollo.ioFirst choices, of twelve modelsAiSDR
Direct101 against Apollo.io
Paraphrase40
Comparative01
Budget-constrained411 against AiSDR
Scale-constrained001 against AiSDR
Negative012 against AiSDR
Bars are first choices, 0 to 12 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to twelve.

Every model, every framing

The seventy-two answers behind the chart above, one cell each: where Apollo.io and AiSDR stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
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 AiSDR first choice named as an alternative argued againstblank: not namedEach cell is one answer, Apollo.io on the left and AiSDR on the right.

The direct prompt

The plain question, one answer per model, grouped by where Apollo.io and AiSDR stood in it.

Apollo.io first, AiSDR not the choice

1 of 12 modelsAiSDR was named in the answer but not as the choice, or not at all.
Grok 4.1 FastApollo.io alternatives: Amplemarket, Reply.io

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.
Claude Haiku 4.5RocketSDR alternatives: Apollo.io
Perplexity SonarAmplemarket Duo alternatives: AiSDR, Artisan Ava
Mistral SmallAmplemarket Duo Copilot alternatives: AiSDR, Artisan, Salesforge
DeepSeek V4 FlashAmplemarket alternatives: 11x, AiSDR, Artisan, Reply.io
Qwen 3.7 FlashAmplemarket alternatives: AiSDR, Reply.io
Kimi K2Amplemarket, Reply.io alternatives: AiSDR
GLM 4.7 FlashXArtisan alternatives: 11x, AiSDR, Regie.ai, Salesforge
MiniMax M2.5Amplemarket, SalesTools.io alternatives: Agent Frank, AiSDR, Reply.io

Neither was named

3 of 12 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniQualified alternatives: Reply.io
Gemini 3.5 FlashArtisan alternatives: Clay, Regie.ai, Reply.io
Llama 4 Maverickno first choice

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

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Apollo.io leads by two points.
Apollo.io24%#1 of 8
AiSDR22%#2 of 8
The full small business standing →
Mid-marketThe figures above
Apollo.io leads by seventeen points.
Apollo.io20%#1 of 11
AiSDR2%#5 of 11
The full mid-market standing →
Enterprise
The order flips: AiSDR leads at enterprise.
AiSDR13%#2 of 11
Apollo.io2%#10 of 11
The full enterprise standing →

What the models said about Apollo.io

No label in this category carried a quote.

What the models said about AiSDR

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.

“AiSDR - Platform compliance issues, quality degradation at scale” Mistral Small · negative prompt · hard negative
“AiSDR has significant control and flexibility limitations at a premium price point, with concerning hallucination rates.” DeepSeek V4 Flash · negative prompt · soft negative
“Most teams should start with Tier 1 or 2 before jumping to Tier 3 autonomous agents.” MiniMax M2.5 · scale prompt · soft negative
“AiSDR | Only major vendor with quarterly contracts ($900/mo), transparent pricing, lower commitment risk” Kimi K2 · negative prompt · first choice
“Go with AiSDR for a hands-off, autonomous experience at mid-tier pricing.” Qwen 3.7 Flash · comparative prompt · first choice
“🏆 Best Overall Value: AiSDR” Mistral Small · budget prompt · first choice
Also compared

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.