Comparison

Open vs. Smith.ai

Smith.ai is a human + AI hybrid answering service. Open is a fully AI voice agent. Different delivery models for different price points.

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Smith.ai
Human + AI
Open
Fully AI
Smith.ai
Per-call pricing
Open
Per-resolution pricing

01 — Overview

Open or Smith.ai: which is right?

Smith.ai uses real humans (US-based receptionists) on the call, with AI helping the receptionist behind the scenes. Open uses AI on the call directly. Smith is the right answer when the customer-facing voice has to be human; Open is the right answer when you're comfortable with AI on the call and want lower cost and faster scaling.

Smith.ai is a polished US-based answering service. They've been around since 2015, employ thousands of US-based receptionists, and have a strong customer base in the legal vertical. The marketing positions the service as "AI-powered" — and they do use AI behind the scenes for transcription, CRM updates, scheduling, and intake-form filling — but the customer-facing voice on the call is a human receptionist, not an AI.

That's a real product difference. Customers who want a human receptionist (a small law firm with high-touch client expectations, a luxury brand, a service where AI on the call would feel wrong) get genuine value from Smith. The receptionists are well-trained, the back-end AI keeps cost down vs. a fully-human service, and the integration with Clio / MyCase / HubSpot is good.

Open is a different product. Open uses AI on the call directly — speech-to-text, LLM, text-to-speech in a sub-200ms loop. The customer is talking to AI. The economics scale differently: Smith pays a US receptionist for every minute on the call; Open pays for compute. Smith's pricing is per-call ($1-5+ per call typically) plus per-message; Open's is per-resolution.

The breakeven point for cost is around 100-200 inbound calls per month. Below that, Smith and Open cost roughly the same; the differentiator is whether you want a human voice or AI. Above that, Open's economics improve faster than Smith's.

The 24/7 question is interesting: Smith covers business hours by default with extended-hours upgrades; Open is always 24/7 at the same per-resolution rate. For after-hours-heavy use cases (HVAC, plumbing, urgent care, legal intake), Open's coverage maths is more favourable.

When Smith is the right answer: small law firms or high-touch service businesses where a human voice is part of the brand promise. When Open is the right answer: businesses comfortable with AI on the call who want 24/7 coverage at lower cost.

Smith.ai delivers

  • Human voice on the call

    US-based human receptionists, well-trained, brand-appropriate.

  • AI helps the receptionist

    Back-end AI handles transcription, CRM updates, scheduling — keeping cost below pure-human services.

  • Strong legal-vertical fit

    Polished integration with Clio, MyCase, HubSpot. UPL-aware receptionist training.

  • Per-call pricing

    $1-5+ per call typically, plus per-message and add-ons.

Open ships

  • AI voice on the call

    AI runs the conversation directly. Sub-200ms latency, natural voice quality, 100+ languages.

  • AI takes action mid-call

    CRM lookup, calendar booking, payment links, ticket creation — live during the call.

  • 24/7 at the same price

    No "extended hours" upcharge. Open is always 24/7 at the same per-resolution rate.

  • Per-resolution pricing

    You pay when the AI resolves something. Carrier minutes stay invoiced by your phone provider.

02 — Why it works

What makes Open the right answer for Open vs. Smith.ai

  • AI on the call, not behind it

    The call itself is AI-driven, with sub-200ms latency. Smith.ai uses humans on the call with AI helping behind the scenes.

  • 24/7 included by default

    No extended-hours upcharges. Open is always 24/7 at the same per-resolution rate.

  • Faster handling for high-volume verticals

    Above ~150 calls/month, Open's per-resolution economics are typically materially better than per-call pricing.

  • 100+ languages

    Multilingual coverage at no additional cost. Smith.ai's language coverage is limited to staffed languages.

03 — Security

Encrypted, audited, refundable

SIP over TLS for signaling, SRTP for media. Every call logged with full reasoning traces. SOC 2 Type II, GDPR-aligned, HIPAA- and PCI-ready. Backed by the Open $2M Refund Guarantee.

04 — FAQ

Open vs. Smith.ai questions, answered

Some will, on the first call. The difference between a polished human receptionist and a polished AI receptionist is real. Most customers don't notice on subsequent calls — and most appreciate that the AI answered at 11pm on a Saturday rather than going to voicemail.

Yes — and a few customers do. Open handles the routine 80% (booking, status, FAQ, simple intake), Smith.ai handles the 20% where a human voice is the brand promise (high-value new-client intake, sensitive matters).

At ~100 calls/month, the two are similarly priced. Above that, Open scales better. The exact cross-over depends on how Smith.ai's per-call rate is configured for your account.

On voice and conversation quality, yes. On the texture of a long-form personal conversation, a human still wins. For booking, status, intake, and routine work, AI is at least as good and faster.

Yes — Open queries Clio / MyCase / Smokeball / Filevine on the call and flags conflicts before booking the consultation. The mechanics are the same; the voice on the call is different.

Same week for most. Repoint the inbound number at Open, configure the agent with the same intake script Smith was running, ship.

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