G
GSiena AI vs Slang.ai
Pricing, features, platforms and who each one suits — side by side.
S
Choose Siena AI if…
- you work on Slack
- you're in its core audience: consumer brands, e-commerce customer experience teams
S
Choose Slang.ai if…
- you're in its core audience: restaurant owners, multi-location hospitality groups
Side by side
Feature Siena AI Slang.ai
Pricing modelPaidPaid
Starting price$750/mo—
Free plan
Free trial
API
Open source
Data retention—Kept as long as necessary to provide Services or business purposes
Security and complianceSOC 2 Type II, GDPR—
AI voice/phone agent—
Human handoff—
AI takes actions
Shopify/ecommerce data—
Live translation—
PlatformsWeb, SlackWeb
CategoryCustomer SupportCustomer Support
Rank in its category#6 of 12#12 of 12
CompanySiena Labs, Inc.Gablex Inc. (d/b/a Slang.ai)
Based inUnited States—
Founded——
Part of——
Key features
S Siena AI
- Automated order updates, return labels, refunds and replacements
- Subscription skip, pause and swap handling with upsell suggestions
- Shopping Agent for product recommendations
- Social Agent for product questions and community moderation
- Copilot for drafting on-brand replies and translations
- AI Personas, guardrails and granular policy controls
- Collaborative AI Routing that explains each handoff
- Siena Docs knowledge base with a branded public help center
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
Plans and prices
From each vendor's site. Prices change — confirm before buying.
Siena AI
Platform fee$750/month
Automation Pack$0.90 per ticket automated
Support & ImplementationPricing on request
Slang.ai
CoreFrom $399 per location
PremiumFrom $599 per location
EnterpriseCustom
Strengths and limitations
Siena AI
- Integrates with six named helpdesks, including Zendesk, Gorgias and Intercom
- Published pricing: $750/month platform fee plus $0.90 per automated ticket
- Siena Docs is included in the plan at no extra cost
- Platform fee includes an unlimited sandbox
- No free plan or free trial is mentioned on the pricing page
- Support and implementation pricing is not published and must be requested
- Per-ticket charges come on top of the $750 monthly platform fee
- No mobile app is listed
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
- Billing period for listed prices not stated on the pricing page
- Built specifically for restaurants, not general businesses
- Superhost and 97-language support require the Premium plan
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Facts from each vendor's public pages, prices checked Oct 26, 2026. Editorial policy