AI voice agents and voice cloning platform for phone calls
A new kind of system for getting things done
Stage
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Founded
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Based in
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Pricing model
Freemium
Freemium
Pricing
Free plan includes 30 phone-call minutes monthly that renew. Paid plans: Starter, Growth, Scale, Business and Enterprise with usage-based pricing. Phone-call minutes and number rental billed separately from credits. Web calls included. Free plan has 30 credits, up to 2 phone numbers, up to 2 active
Free plan available. hark pro² at $20/month with 2× more usage. hark pro³ at $100/month with 10× more usage. All features available in all plans; upgrading increases usage capacity.
Key features
Instant voice cloning from 20 seconds of speech
600+ realistic AI voices in 30+ languages
Visual no-code flow builder for conversation design
Knowledge base grounding for accurate answers
Inbound and outbound calling at scale
API and no-code access
Bulk outbound campaigns with analytics
Phone numbers in 60 seconds
Low-latency voice with interruption handling
Call analytics, transcripts and recording
Persistent memory to tailor responses based on shared context
Computer use agent for browsing, research, and web tasks
End-to-end encryption for data security
Action Buttons for prioritized task completion
Email management and sorting
Flight booking and travel planning
Food ordering integration
Appointment booking and healthcare search
Expense auditing and savings recommendations
What makes it different
One integrated platform for the complete voice AI call stack without stitching together multiple tools
Free plan with renewing monthly minutes and no credit card required
Built-in support for Indian languages and regional accents
120ms median voice latency for natural conversations
Operates its own secure computer with full browser for independent task execution
End-to-end encryption vault for sensitive data protection
User approval required before performing sensitive actions