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Lifelike conversational AI voice companions
Pros
- Exceptionally human-like dialogue
- Free during preview
- Distinct, memorable personas
Cons
- No public paid pricing yet
- Session limits in demo
- Companion focus, not API/voiceover
✓ Where it shines / best for
- Researchers and developers exploring expressive conversational speech
- Early adopters wanting a natural AI voice companion
- Builders experimenting with the open CSM model
✕ Not the best fit for
- Businesses needing a stable commercial TTS API today
- Document/text-to-speech reading workflows
- Buyers needing fixed published subscription pricing
Features
- ✓ Free tier
- ✓ Real-time
- ✓ On-device / offline
- ✓ Speech To Speech
- ✓ Conversational
- ✓ Open source
- ✓ Expressive Speech
- ✓ Voice Companion
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Research / Demo (free) | $0 | free | Public conversational voice demo (Maya/Miles) free to try; CSM speech model open-sourced |
| CSM open model | $0 | open-source | Conversational Speech Model weights released under permissive license on GitHub/Hugging Face |
| Sesame AI glasses | Not yet released | preorder | AI smart glasses with always-available voice companion announced; consumer pricing not finalized |
Pricing verified from the official source. Prices change often — confirm on the vendor's site before buying.
Specifications
| personas | Maya, Miles, Simone, Charlie |
| platform | Web + iOS |
Sponsored
A full review is being generated for this product and will appear here shortly.