Voice AI pricing: Everything you should know

It’s easy to see why thousands of businesses are looking into AI voice agents. These AI tools boost first response times and ensure you never miss a call. Companies that use AI voice agents for customer service also report 20–30% reductions in operational costs. 

And what was once a custom-built solution for enterprise brands has become surprisingly accessible. Today, ready-made voice AI tools let small businesses get up and running in minutes, without a developer or a six-figure budget. 

In this article, we break down voice AI pricing, hidden fees, and the total cost of AI voice agents for your business.

How much does voice AI cost? 

Voice AI prices depend on your provider and plan. But in general, you can expect to pay $0.33 to $2.00 per call or $0.59 to $2.00 per minute.

Pricing tiers also vary based on features, integrations, and call volume.

We cover the specifics below.

Typical voice AI pricing models

First, here’s a quick breakdown of how much voice AI costs. There are typically three pricing plans to consider:

Pricing model	Typical range	How it works	Best for
Per-call	$0.33–$2.00 per call	Monthly plan with included calls + overage fees	Businesses with varying call lengths
Per-minute	$0.59–$2.00 per min	Monthly plan with included minutes + overage fees	Businesses with short, predictable calls
Unlimited	$49–$79 per month	Flat monthly fee, no usage limits	High-volume businesses with simple needs

Now, let’s take a closer look at these pricing structures.

Per-call pricing 

Per-call pricing, sometimes called pay-as-you-go pricing, charges a set amount for every phone call your AI agent handles. Most providers sell monthly plans with an included number of calls, measured in call credits. If you exceed your allotted credits, you’ll pay a slightly higher overage rate per additional call.

Per-call pricing tends to be the most cost-effective model if your business receives longer calls. You’re not racking up per-minute fees or overpaying for unlimited capacity you don’t need.

Sona by Quo, formerly OpenPhone, is a good example. Unlike standalone voice AI services, Sona is built into Quo’s telephony platform, so there’s no need to juggle separate tools or forward calls between apps. There’s a free tier for up to 10 calls per month, and paid plans start at $25 per month for 40 calls, or around $0.62 per call. Overage rates range from $0.45 to $1.00 per additional call, depending on your plan. You can also disable overages for a predictable monthly bill.

Here’s a short video explaining how Quo’s Sona works:

Smith.ai is another per-call option, though it’s a standalone service — you’ll need a separate business phone system to use it. Plans start at $95 per month for 50 calls, or around $1.90 per call. Overages run $2.10 to $2.40 per call. 

💡 What per-call pricing gets you: Call recording, transcripts and summaries, and call transfers. Some providers, like Sona, also include lead qualification and CRM integrations. These keep everyone on your team in the loop and make follow-up easier.

💡 Watch out for: Providers that count calls even when a caller hangs up after a few seconds. With Sona, calls under 15 seconds don’t count toward your usage.

Check the Terms of Service or ask sales how short calls are billed before you commit.

▶️ Want to compare providers? Read our guide: Best AI voice agents for business

Per-minute pricing

With per-minute pricing, you purchase a bundle of minutes as part of a monthly plan. For example, you might buy 300 minutes to cover one month of call volume. When you run low, you can purchase more minutes or pay per-minute overage fees.

RingCentral’s AI receptionist is an example with per-minute pricing. A standalone plan runs $59 per month for 100 minutes, while adding it to a RingEx plan costs $69 per month for the same 100 minutes. Overages are $0.50 per additional minute.

At the higher end, Abby Connect starts at $99 per month for just 50 minutes — or around $1.98 per minute. Overage rates aren’t published, so you’d need to contact them directly.

💡 What per-minute pricing gets you: English and Spanish answering, FAQ support, and workflow integrations on more advanced plans. You can also access custom call flows and transfers to automatically route calls to the right person.

💡 Watch out for: Setup fees or integration costs that aren’t included in the base plan. Always ask what’s included before signing up.

Unlimited usage with a flat monthly fee

Unlimited plans charge a flat monthly subscription for unlimited minutes, calls, or tokens. This means your voice AI can handle as many calls as you receive for as long as they last without overage charges.

The tradeoff is a higher base cost than per-minute or per-call plans. Whether that’s worth it depends on your call volume: if your lines are consistently busy, the predictability alone can justify the price.

Rosie AI starts at $49 per month for unlimited minutes. It’s a standalone service, so you’ll need a separate VoIP system to handle inbound calls effectively.

Goodcall starts at $79 per month for unlimited minutes and tokens. The catch is that once you exceed100 unique monthly customers, you’ll pay an extra $0.50 per customer call.

💡 What unlimited pricing gets you: 24/7 call answering, plus call summaries, transcripts, and recordings. You can also set up custom FAQ responses using large language models, or LLMs. These can help you tailor how your agent replies based on specific language or scenarios.

💡 Watch out for: Extra fees for call transfers, SMS with appointment links, and CRM integrations. These are often excluded from the base price. Most unlimited plans are standalone services, which means forwarding calls from your existing phone system and piecing together conversation histories across apps.

Hidden fees to watch for with voice AI pricing

Voice AI services may not list every cost on the pricing page.

Below are some common hidden fees to watch for:

• Overage fees. You get a certain number of minutes or calls included, then you pay overage rates. These vary widely,
•  depending on the provider and the usage tier you’re on. 
• Early termination fees. Some providers offer discounts in exchange for annual contracts. If you need to cancel before the term ends, you may owe an early termination fee — so it’s worth reading the fine print before you commit.
• Setup fees. Some services charge onboarding or setup fees for first-time or enterprise-grade customers. Abby Connect, for example, charges a one-time $95 setup fee to start any voice AI subscription. But the best AI phone answering services, like Sona, don’t require you to pay extra for onboarding.
• Per-action billing. Some providers bill for every automation or action a voice AI performs. This includes things like transfers, API calls, or voice cloning. This can add up quickly as your business scales and optimizes workflows. 

AI voice features that may cost extra

Many voice AI plans don’t include everything out of the box.

Depending on your provider, you may need to pay extra for core functionality upgrades like:

• Appointment booking. Tools like Rosie AI require you to upgrade before sending texts with appointment links to callers.
• Integrations. Some providers require a higher-tier plan to integrate with tools like Zapier and connect your tech stack, CRMs, or APIs.
• Call transferring. Some tools require upgrades before you can transfer calls to other phone numbers or individuals.
• Speech-to-text. You may need to purchase add-ons for AI transcription or speech recognition. 

You should also keep an eye out for add-ons around customization and compliance:

• Security, compliance, and SLAs. Some voice AI tools require an enterprise plan to provide security features like HIPAA compliance. Others require add-on fees. The only way to know for sure is to contact the sales team.
• Custom voices. Some platforms like ElevenLabs use text-to-speech, or TTS, to create “voices” you can customize. Other platforms require additional upgrades and add-ons to provide the same service.
• Multilingual support. Multi-language support can cost more. But it may be useful if you serve a non-English speaking customer base.

Sona: The best voice AI agent for growing businesses

Voice AI is one of the most scalable investments a small business or startup can make — and Sona is built specifically with that in mind. It’s an add-on to any Quo plan, so you only pay for what you use. No complicated setup, no juggling tools, no missed calls slipping through the cracks. 

Ready to see how it works? Start with 10 free calls a month, or sign up for a seven-day free trial to explore everything Sona can do for your business. 

Frequently asked questions about voice AI