Cartesia vs Celestlabs
Cartesia vs Celestlabs, compared side by side on 11 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 Celestlabs on 8/100.
Where each one leads
Cartesia
- our overall score: 66/100 against 8/100
- agent readiness: 54/100 against 42/100
Celestlabs
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Cartesia | Celestlabs |
|---|---|---|
| What it is | Ultra-realistic voice AI platform powered by State Space Models for developers. | Human-quality speech and cloning in 107 languages, up to 50x cheaper than frontier models. |
| Category | Voice AI, Conversational AI, AI Voice Synthesis, AI Voice Cloning | Voice AI, Voice Cloning, Voice Synthesis, Text-to-Speech |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | 2022 | Not published |
| Headquarters | San Francisco, United States | Not published |
| Status | Active | Active |
Size, funding and growth
| Measure | Cartesia | Celestlabs |
|---|---|---|
| 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 | Celestlabs |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 66/100 | 8/100 |
| Traction | 60/100 | Not published |
| Team | 70/100 | Not published |
| Community | 20/100 | Not published |
| Search visibility | 79/100 | 8/100 |
| Quality | 65/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (54/100) | D (42/100) |
| 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 | Celestlabs |
|---|---|---|
| Hosting | Vercel | AWS |
| CDN | Vercel | CloudFront |
| Frameworks | Astro, Tailwind CSS | Not detected |
| Analytics | Not detected | Segment |
| Open source | Yes | No |
Product and pricing
| Measure | Cartesia | Celestlabs |
|---|---|---|
| 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 | Celestlabs |
|---|---|---|
| Community ratingVisitor votes on StartupHub | 5.0/5 from 1 vote | Not published |
Cartesia vs Celestlabs: common questions
Which is better, Cartesia or Celestlabs?
On our 0-100 score Cartesia rates higher (66/100 against 8/100). 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 11 data points above: read the rows that match what you are buying for.
How do Cartesia and Celestlabs compare on the numbers?
Cartesia leads on our overall score (66/100 against 8/100), agent readiness (54/100 against 42/100).
Read the full Cartesia review and pricing or the Celestlabs review and pricing. You can also browse other Cartesia alternatives we track.