78
Stack Score
Best for
Builders and curious users who want to feel where conversational voice AI is heading — the most personality-rich demo today.
At a glance
- Pricing
- freemium
- Setup time
- Instant
- Learning curve
- easy
- Last verified
- 5/19/2026
What we love
- ✓The most natural-feeling voice interaction available right now
- ✓Maya and Miles voices actually feel like personalities, not robots
- ✓Latency low enough that interruptions and barge-in work
Where it falls short
- −Limited public API at launch — mostly demo and consumer access
- −Only two voices available so far, English only
- −No clear pricing model yet — early-stage product
Pricing
✓ Pricing verified Jun 21, 20262 tiers
Free demo
$0
public preview
- ✓Browser demo
- ✓Maya and Miles voices
- ✓Limited session length
API
TBD
upcoming
- ✓Developer access
- ✓Custom integrations
- ✓Production SLA
Why we picked it
Closest thing to ChatGPT Voice mode with a real personality. Demo it once and you'll get it.
Overview
Conversational AI voice that maintains real-time, low-latency back-and-forth. Strong emotional range and personality.
Key features
- ●CSM-1B model — low-latency conversational voice generation
- ●Real-time back-and-forth dialogue without stilted turn-taking
- ●Distinct voice personalities (Maya, Miles) with emotional range
- ●Demo at sesame.com — try it in the browser without signup
- ●Mobile app for iOS and Android in beta
- ●Web SDK previewed for developers — phone-bot ready
Best use cases
Voice companion
Casual conversation, brainstorming, or thinking out loud with an AI that feels human.
Customer support pilots
Test what conversational voice does to support metrics on a small slice of traffic.
Accessibility
Spoken interaction for users who prefer voice over typing on phones or wearables.
Integrations
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