Real-time voice AI platform for enterprise-scale conversations
Stage
Not given
Not given
Founded
Not given
2023
Based in
Not given
US
Pricing model
Freemium
Freemium
Pricing
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.
Pay-as-you-go pricing starting from $0.05/minute for voice agents, with $10 free credits to start. Models priced individually: Speech-to-Text approximately $0.009/minute, Text-to-Speech approximately $0.09/minute, Hosting $0.01/minute flat rate. Phone numbers rent for $10/month. Enterprise plan avai
Key features
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
Real-time speech-to-text across 38+ languages with 64ms latency
Text-to-speech at sub-100ms latency across 70+ languages
Full-duplex speech-to-speech model with real-time conversation
Small language model (Electron) outperforming larger models
Unlimited voice agents with single interface
Voice cloning capability
Multi-language support for voice agents
Emotion and speaker detection
Knowledge base integration ($3/GB/User)
Post-call analytics and reporting
What makes it different
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
All features available across free and paid tiers
Production-grade models built for reliability and real-time performance at enterprise scale
Smaller, focused AI models that outperform larger general-purpose models in real-world applications
Complete voice stack integration from speech understanding to response generation
Enterprise security with ISO 27001, SOC 2 Type II, GDPR, and HIPAA compliance
Flexible pay-as-you-go pricing with no long-term contracts
Hark
Smallest AI