AI voice agents · October 2026 Edition
CloudTalk vs Synthflow
Eight of fourteen models named CloudTalk first on the direct prompt; one named Synthflow. CloudTalk was named by eleven of the fourteen models and Synthflow by thirteen and CloudTalk carries 24 labels and Synthflow 32, so the shares are not directly comparable.
Named in thirteen categories this edition.
Named in two categories this edition.
First-choice share19%3%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate8%22%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#5A position in a field of 8; printed, not drawn.
Labels2432A 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 twelve of the fourteen direct answers. Retell AI vs CloudTalk · Retell AI vs Synthflow · CloudTalk vs Vapi
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 modelsSynthflow
Direct811 against Synthflow
Paraphrase401 against CloudTalk
Comparative00
Budget-constrained011 against Synthflow
Scale-constrained00
Negative001 against CloudTalk · 5 against Synthflow
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 Synthflow stood in it.
| 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 | | | | |||
| GPT-6 Luna | | | ||||
| Muse Glimmer 30B | | |
CloudTalk Synthflow first choice named as an alternative argued againstblank: not namedEach cell is one answer, CloudTalk on the left and Synthflow on the right.The direct prompt
The plain question, one answer per model, grouped by where CloudTalk and Synthflow stood in it.
Both were the first choice
1 of 14 modelsThe answer named them together, and the judge labeled each a first choice.MiniMax M2.5CloudTalk, Synthflow alternatives: Retell AI
CloudTalk first, Synthflow an alternative
7 of 14 modelsSynthflow was named in the answer but not as the choice, or not at all.Perplexity SonarCloudTalk alternatives: Retell AI, Salesforce Agentforce Voice, Synthflow AI
Mistral SmallCloudTalk, Retell AI alternatives: ElevenLabs Conversational AI, Leaping AI
Llama 4 MaverickAloware, CloudTalk alternatives: GetVoIP, Plivo
Qwen 3.7 FlashCloudTalk alternatives: Bland AI, Retell AI, Rezora IO
Kimi K2CloudTalk alternatives: Aloware, Retell AI, Synthflow
GLM 4.7 FlashXCloudTalk alternatives: Bland AI, Retell AI, Synthflow, Vapi.ai
Muse Glimmer 30BAloware, CloudTalk alternatives: HubSpot Breeze AI, Retell AI, Synthflow
Neither was the first choice, one was named
4 of 14 modelsThe answer put something else first and named one of the two as an alternative.Claude Haiku 4.5Aloware, Retell AI alternatives: Synthflow, Vapi
Grok 4.1 FastRetell AI alternatives: Bland AI, CloudTalk, Regal, Synthflow
DeepSeek V4 FlashRegal, Retell AI alternatives: CloudTalk, Synthflow AI
GPT-6 LunaRetell AI alternatives: PolyAI, Synthflow, Vapi
Neither was named
2 of 14 modelsThe answer made no first choice from these two in this category.GPT-5.4 miniTwilio alternatives: Deepgram Voice Agent API, OpenAI Realtime / Voice agents
Gemini 3.5 FlashAloware, Synthflow AI alternatives: Bland AI, Retell AI, Vapi
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 three points.
CloudTalk15%#2 of 7Synthflow12%#3 of 7Mid-marketThe figures above
CloudTalk leads by sixteen points.
CloudTalk19%#2 of 8Synthflow3%#5 of 8Enterprise
The order flips: Synthflow leads at enterprise.
Synthflow2%#11 of 11CloudTalk0%#– of 11What the models said about CloudTalk
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.
“Billing disputes and auto-renewal complaints on Trustpilot ... not for standalone AI voice agent use.” DeepSeek V4 Flash · negative prompt · soft negative
“CloudTalk is called an "ideal voice agent solution for SMBs and mid-market sales teams that need an all-in-one platform for sales calls, follow-ups, and analytics"” Muse Glimmer 30B · direct prompt · first choice
What the models said about Synthflow
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.
“Why avoid: If your call volumes exceed 5,000 calls per month, Synthflow may not scale well for you.” Mistral Small · negative prompt · hard negative
“Enterprise-heavy (e.g., Synthflow: $30k/year min).” Grok 4.1 Fast · budget prompt · hard negative
“some specific products (for example Synthflow, ElevenLabs, Retell AI, Deepgram) have recurring complaints about cost or credit limits” GPT-5.4 mini · negative prompt · soft negative
“The best AI voice agent platform for a company with a limited budget is Synthflow, as it offers a finished no-code agent at a low cost.” Llama 4 Maverick · budget prompt · first choice
“Synthflow or CloudTalk offer the best balance of ease-of-use, features, and pricing” MiniMax M2.5 · direct prompt · first choice
“Want a no-code visual builder that deploys quickly across sales and support with multilingual support → Synthflow.” Muse Glimmer 30B · direct prompt · alternative
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.