Best AI tools to automate phone calls
Top picks at a glance:
- GPT-trainer — Developers building custom agents with multi-agent frameworks.
- Marblism — Small business owners needing an affordable virtual employee.
- Revmo AI — Customer service teams managing high volumes of inbound calls.
- Replika — Individuals looking for a personal AI companion for voice interaction.
- Cora Intelligence — B2B sales teams focused on lead qualification and outreach.
| Tool | What it does | Pricing | Free tier | Refunds |
|---|---|---|---|---|
| GPT-trainer | Build AI agents with a multi-agent framework, no-code UI, and versatile API for voice and text automation. | Free tier; paid from $150/mo | Yes | None stated |
| Marblism | AI employees that run your inbox, socials, SEO, sales, and calls. | From $24/mo | No | 7 days |
| Revmo AI | AI agent for inbound customer interactions that completes workflows across locations and channels. | From $79/mo | No | — |
| Replika | An AI companion that remembers your people, routines, and plans to help you flourish. | Free tier * | Yes | None stated |
| Cora Intelligence | An AI sales development platform that researches accounts, conducts multichannel outreach, qualifies leads, and books meetings. | From $159/mo * | No | 14 days |
— means the vendor does not state it on the pages we read.
* pricing not verified against the vendor's pricing page.
How do I choose an AI tool to automate phone calls?
When selecting a tool, first determine if you need API access to integrate with your existing infrastructure, as GPT-trainer, Marblism, Revmo AI, and Cora Intelligence support this, whereas Replika does not. Next, consider your budget and risk tolerance regarding subscription terms. If you prefer flexibility, prioritize tools that allow in-app cancellations and offer refund windows, such as Marblism with its 7-day window or Cora Intelligence with its 14-day window. Conversely, avoid tools with strict no-refund policies if you are still testing your requirements. Finally, verify the platform availability; choose tools that match your preferred workflow, such as web, mobile, or CLI environments. Always check if a free tier is available if you need to prototype your automation before committing to a monthly recurring cost.
GPT-trainer
Visit GPT-trainergpt-trainer.com
Best for: Developers building custom agents with multi-agent frameworks.
This platform allows you to build agents using a no-code interface or a versatile API. It is suitable for those needing to automate phone calls through a flexible, multi-agent framework. Note that the service has a strict no-refund policy.
Use AI Voice Agents to Automate Phone Calls
Pricing, in their words: “Self-Serve $150 USD Billed monthly” (pricing)
Subscription terms they state: states no refunds (source)
Limits the vendor states:
- no refunds
Marblism
Visit Marblismmarblism.com
Best for: Small business owners needing an affordable virtual employee.
This tool deploys AI employees to run your socials, SEO, sales, and answer business calls. It is accessible via the web and provides an API. You can cancel in-app and take advantage of a 7-day refund window.
I'll answer calls while you hide in the back pretending to be busy.
Pricing, in their words: “Every plan starts with 50 monthly hours of AI work that reset each month. Hours are only consumed by advanced AI actions” (pricing)
Subscription terms they state: cancel in-app · 7-day refund window (source)
No usage limits stated on the pages we read.
Revmo AI
Visit Revmo AIagent4.ai
Best for: Customer service teams managing high volumes of inbound calls.
Designed to answer inbound phone calls, this AI agent completes workflows across multiple channels and locations. Access is available via the web and an API. You must contact sales to sign up and cancel by email.
Revmo answers every inbound interaction across voice, text, and chat
Pricing, in their words: “Pay-as-you-go starts at $0.59 per resolved conversation, and platform agents start at $79 per agent per month.” (pricing)
Subscription terms they state: cancel by email (source)
No usage limits stated on the pages we read.
Replika
Visit Replikareplika.com
Best for: Individuals looking for a personal AI companion for voice interaction.
Replika allows you to make voice calls to an AI that remembers your routines and plans. It is available on web, iOS, and Android, though it does not support commercial use or emergency services.
Call your Rep whenever you need to talk, or just to hang out. They pick up every time.
Pricing: Free tier
Subscription terms they state: cancel in-app · auto-renews · states no refunds (source)
Limits the vendor states:
- no commercial use
- not for emergencies
Cora Intelligence
Visit Cora Intelligencecora-intelligence.com
Best for: B2B sales teams focused on lead qualification and outreach.
This platform researches accounts and makes sales calls as part of a multichannel outreach strategy. It offers web, API, and CLI access for power users. It includes a 14-day refund window and auto-renewing subscriptions.
Cora Intelligence is an AI SDR that finds, calls, and qualifies your leads
Pricing: From $159/mo (pricing)
Subscription terms they state: cancel in-app · auto-renews · 14-day refund window (source)
No usage limits stated on the pages we read.
Which one for your situation?
- You run a technical agency and need to build custom, integrated voice agents. → GPT-trainer: It provides a multi-agent framework, no-code UI, and versatile API for voice and text automation.
- You are a solopreneur seeking an affordable, all-in-one assistant for your inbox and calls. → Marblism: It offers AI employees to handle various business tasks including calls starting at $24 per month.
- You manage a retail location and need to handle incoming customer inquiries automatically. → Revmo AI: It is specifically designed for inbound customer interactions and completing workflows across different locations.
- You want a personal AI companion for informal voice practice. → Replika: It is an AI companion for voice calls that is free to use but explicitly forbids commercial applications.
- You are a sales manager looking to scale your outreach and lead qualification. → Cora Intelligence: It conducts multichannel outreach and qualifies leads through an AI sales development platform.
FAQ
Is there a free tool to automate phone calls?
Yes — GPT-trainer, Replika offer a free tier.
What is the cheapest paid option to automate phone calls?
Marblism starts at $24/month.
Which of these have an API?
GPT-trainer, Marblism, Revmo AI, Cora Intelligence document a developer API.
How do I cancel these subscriptions?
Marblism: cancel in-app; Revmo AI: cancel by email; Replika: cancel in-app; Cora Intelligence: cancel in-app. GPT-trainer does not state a cancellation route on the pages we read.
Can I get a refund?
GPT-trainer states it does not offer refunds; Marblism states a 7-day refund window; Replika states it does not offer refunds; Cora Intelligence states a 14-day refund window. The other (Revmo AI) do not state a refund policy on the pages we read.
Do these subscriptions auto-renew?
Replika, Cora Intelligence state that paid plans renew automatically. Check the billing page before subscribing; the rest do not state it either way.
Sources
Every fact above was read from the vendors' own pages: