V
VPolyAI vs Slang.ai
Pricing, features, platforms and who each one suits — side by side.
P
Choose PolyAI if…
- you need an API to build on
- you want to trial it before paying
- you're in its core audience: enterprise contact centers, customer service leaders
S
Choose Slang.ai if…
- you're in its core audience: restaurant owners, multi-location hospitality groups
Side by side
Feature PolyAI Slang.ai
Pricing modelContact for pricingPaid
Starting price——
Free plan
Free trial
API
Open source
Data retention—Kept as long as necessary to provide Services or business purposes
PlatformsWeb, APIWeb
CategoryVoice AgentsCustomer Support
CompanyPolyAI LtdGablex Inc. (d/b/a Slang.ai)
Full feature lists
P PolyAI
- Audio-native Dialog-RSN-1 voice model with sub-300ms latency
- Dialog Studio for no-code to full-code agent building
- Voice, SMS, WhatsApp, web chat and email channels
- Guardrails, PII redaction and human-in-the-loop controls
- Test calls, simulated conversations and A/B tests
- Pre-built connectors plus any API or MCP server
- Bring your own carrier over SIP at no charge
- Data residency in US, UK, EU and APAC
S Slang.ai
- Answers restaurant phone calls with interruptible voice AI
- Reservation management with OpenTable, Resy, SevenRooms integrations
- 97 languages with automatic mid-call switching
- 20 premium voices and custom greetings
- VIP routing of frequent diners to staff
- Cross-selling reservations to sister locations
- Real-time alerts for private events and lost items
- Call recordings, summaries and quality review
Their home pages
What each vendor shows first: the pitch, the plans and the sign-up.
PolyAI · poly.ai
Slang.ai · slang.aiWhat you'd pay
The cheapest plan that fits, per month, billed yearly where the plan offers it.
PolyAI
Dialog-RSN-1 API2¢ per connected minute
PlatformCustom
Slang.ai
CoreFrom $399 per location
PremiumFrom $599 per location
EnterpriseCustom
Price changes we've recorded
We re-read each pricing page every month and log what changed.
PolyAI
- Nov 8, 2026Pricing model: Contact for pricing → Free trial
Slang.ai
No changes since we started tracking.
Strengths and limitations
PolyAI
- Published API price of 2¢ per connected minute, billed per second
- $100 free credit for new sign-ups for a limited time
- SOC 2, ISO 27001, PCI DSS and GDPR compliance
- No minimums on platform billing
- Platform pricing requires a sales quote
- API excludes telephony and orchestration
- API limited to 2 concurrent calls until a card is added
Slang.ai
- Integrates with OpenTable, Resy, SevenRooms, Tripleseat and Yelp
- Supports 97 languages on Premium
- Starting prices published per location
- Vendor says setup takes under 30 minutes
- No free trial mentioned
- Built specifically for restaurants, not general businesses
- Superhost and 97-language support require the Premium plan
More comparisons
Other options to consider
VV
Free, from $29/mo
V
Developer platform to build, test and deploy voice AI agents for phone calls
Voice AgentsFree planAPI
B
BB
Free, from $299/mo
R
R
Free trial
R
Build, deploy and monitor AI voice agents that answer and place phone calls
Voice AgentsAPI
S
SS
Contact
Z
ZZ
Free trial
I
IAI customer agent that resolves support, sales and ecommerce conversations
From $49.50/mo
I
From $49.50/mo
I
AI customer agent that resolves support, sales and ecommerce conversations
Customer SupportAPI
Facts from each vendor's public pages, prices checked Oct 26, 2026. Editorial policy