Side by side
Millis AI vs Speechmatics | AI Voice Agents
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
Develop Advanced LLM-Based Voice Agents with Ultra-Fast 600ms Latency
Build smarter AI voice agents with the best speech recognition technology
Primary task
Voice agents
Voice agents
Pricing
Paid · from $0.02
Freemium · Free + from $0.24
Pricing details
from $0.02
Free + from $0.24
Billing cycle
Pay-as-you-go
Pay-as-you-go
API access
Not documented
Not documented
Platforms
Web
Web
Integrations
Webhooks
MCP
Source rating
5.0 / 5 · 2 ratings
4.5 / 5 · 12 ratings
Catalog views
8.9k
205k
Estimated monthly traffic
—
262.8K
Catalog imported
30 Aug 2026
30 Aug 2026
Listed strengths
- Low-latency voice agents
- Handles complex dialogue dynamics
- Understands human intent
- Affordable rates
- Applicable to personal use
- High real-time transcription accuracy
- Sub-second response time
- Supports 55 languages with accent coverage
- Advanced speaker diarization
- Custom dictionary for domain-specific terms
Listed limitations
- Limited to voice agents
- Dependent on DevOps engineers
- No visual GUI provided
- Requires LLM-based chatbots
- May have hidden costs
- Primarily focused on speech-to-text, not full conversational AI
- May require developer integration for advanced use cases
- Performance depends on audio quality in extreme conditions
- Some features still maturing (e.g., upcoming pipeline updates)
- Enterprise-level features may be cost-prohibitive for small teams