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AI voice agents · November 2026 Edition

CloudTalk vs Vapi

Eight of fourteen models named CloudTalk first on the direct prompt; zero named Vapi. CloudTalk was named by twelve of the fourteen models and Vapi by fourteen and CloudTalk carries 23 labels and Vapi 52, so the shares are not directly comparable.

CloudTalk

accepted challenger

Named in nine categories this edition.

Vapi

accepted challenger

Named in one category this edition.

First-choice share25%8%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate0%12%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#3A position in a field of 8; printed, not drawn.
Labels2352A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, CloudTalk reading right to left. Rank and label count are printed, not drawn.Retell AI was named alongside these two in eleven of the fourteen direct answers. CloudTalk vs Retell AI · CloudTalk vs Synthflow · CloudTalk vs PolyAI

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 AI voice agents page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
CloudTalkFirst choices, of fourteen modelsVapi
Direct80
Paraphrase51
Comparative03
Budget-constrained03
Scale-constrained00
Negative006 against Vapi
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where CloudTalk and Vapi stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.20
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
CloudTalk Vapi first choice named as an alternative argued againstblank: not namedEach cell is one answer, CloudTalk on the left and Vapi on the right.

The direct prompt

The plain question, one answer per model, grouped by where CloudTalk and Vapi stood in it.

CloudTalk first, Vapi an alternative

8 of 14 modelsVapi was named in the answer but not as the choice, or not at all.
Claude Haiku 4.5Aloware, CloudTalk alternatives: ElevenLabs Agents, Retell AI, Synthflow, Vapi
Perplexity SonarCloudTalk alternatives: Retell AI
Grok 4.20CloudTalk alternatives: Retell AI, Vapi
DeepSeek V4 FlashCloudTalk alternatives: ElevenLabs Conversational AI, JustCall, Retell AI, Synthflow, Vapi
Llama 4 MaverickCloudTalk
Qwen 3.7 FlashCloudTalk alternatives: Cresta, Microsoft Copilot Studio, Retell AI, Synthflow AI, Vapi
MiniMax M2.5CloudTalk, Five9 alternatives: Retell AI, Synthflow
Muse Glimmer 30BCloudTalk alternatives: Nextiva XBert, Retell AI, Vapi

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.
GPT-5.4 miniTalkdesk alternatives: ElevenLabs, Genesys Cloud CX, OpenAI Presence, Vapi
Gemini 3.5 FlashRetell AI alternatives: Regal.io, Sierra, Synthflow AI, Vapi
Kimi K2Retell AI alternatives: CloudTalk, Synthflow
GLM 4.7 FlashXRetell AI alternatives: Aircall, CloudTalk, Synthflow, Vapi
GPT-6 LunaRetell AI alternatives: PolyAI, Synthflow, Vapi

Neither was named

1 of 14 modelsThe answer made no first choice from these two in this category.
Mistral SmallKore.ai, Synthflow alternatives: Girikon AI

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
CloudTalk leads by eight points.
CloudTalk12%#2 of 11
Vapi4%#6 of 11
The full small business standing →
Mid-marketThe figures above
CloudTalk leads by seventeen points.
CloudTalk25%#1 of 8
Vapi8%#3 of 8
The full mid-market standing →
Enterprise
The order flips: Vapi leads at enterprise.
Vapi4%#8 of 12
CloudTalk2%#– of 12
The full enterprise standing →

What the models said about CloudTalk

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

“Start with CloudTalk if your mid-market B2B focus is on integrated sales/support without deep coding—it's the most "plug-and-play"” Grok 4.20 · direct prompt · first choice

What the models said about Vapi

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

“Multiple AI model reviews flag Vapi with a high negative share (43% negative labels in one analysis).” Mistral Small · negative prompt · hard negative
“Vapi - 43% of labels are negative, and 8 out of 14 models have negative sentiments.” Llama 4 Maverick · negative prompt · hard negative
“Vapi, if you want a turnkey, low-maintenance setup or maximum control over the whole stack. Its docs say recordings, logging, and transcription are enabled by default” GPT-6 Luna · negative prompt · soft negative
“Choose Vapi or Retell AI if you are a developer or team building a scalable, customized phone agent” Gemini 3.5 Flash · comparative prompt · first choice
“Vapi offers the most flexibility—you can swap speech-to-text, LLM, and TTS providers” MiniMax M2.5 · comparative prompt · first choice
“Often cited as having the most flexible infrastructure... Choose Retell AI or Vapi” Qwen 3.7 Flash · comparative 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.