Cartesia vs Stayopen
Cartesia vs Stayopen, compared side by side on 13 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Cartesia is on 66/100 and Stayopen on 20/100.
Where each one leads
Cartesia
- our overall score: 66/100 against 20/100
- agent readiness: 54/100 against 32/100
Stayopen
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Cartesia | Stayopen |
|---|---|---|
| What it is | Ultra-realistic voice AI platform powered by State Space Models for developers. | Stayopen provides AI-powered voice agents for businesses to automate customer interactions and enhance operational efficiency. |
| Category | Voice AI, Conversational AI, AI Voice Synthesis, AI Voice Cloning | Voice AI, Voice Agent, Voice Agents, Conversational AI |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2022 | Not published |
| Headquarters | San Francisco, United States | Not published |
| Status | Active | Active |
Size, funding and growth
| Measure | Cartesia | Stayopen |
|---|---|---|
| Employees | 116 | Not published |
| Open roles | 30 | Not published |
| Total funding | $191M | Not published |
| Latest round | Series B | Not published |
| LinkedIn followers | 11,381 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Cartesia | Stayopen |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 66/100 | 20/100 |
| Traction | 60/100 | Not published |
| Team | 70/100 | Not published |
| Community | 20/100 | Not published |
| Search visibility | 79/100 | 3/100 |
| Quality | 65/100 | 30/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (54/100) | F (32/100) |
| Domain ratingLink authority, 0-100 | 73/100 | Not published |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Cartesia | Stayopen |
|---|---|---|
| Hosting | Vercel | Vercel |
| CDN | Vercel | Vercel |
| Frameworks | Astro, Tailwind CSS | Next.js, Tailwind CSS |
| Open source | Yes | No |
Product and pricing
| Measure | Cartesia | Stayopen |
|---|---|---|
| Key features | Ultra-Low Latency Sonic Model, Best-in-Class Pronunciations, AI Voice Cloning & Changer, Multi-Language Support, Seamless Integrations, Ink Speech-to-Text | Not published |
What users say
| Measure | Cartesia | Stayopen |
|---|---|---|
| Community ratingVisitor votes on StartupHub | 5.0/5 from 1 vote | Not published |
Cartesia vs Stayopen: common questions
Which is better, Cartesia or Stayopen?
On our 0-100 score Cartesia rates higher (66/100 against 20/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 13 data points above: read the rows that match what you are buying for.
How do Cartesia and Stayopen compare on the numbers?
Cartesia leads on our overall score (66/100 against 20/100), agent readiness (54/100 against 32/100).
Read the full Cartesia review and pricing or the Stayopen review and pricing. You can also browse other Cartesia alternatives we track.