AI21 Labs vs C1
AI21 Labs vs C1, 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: AI21 Labs is on 71/100 and C1 on 34/100.
Where each one leads
AI21 Labs
- our overall score: 71/100 against 34/100
- domain rating: 75/100 against 5/100
C1
Leads on none of the measures we hold for both companies.
At a glance
| Measure | AI21 Labs | C1 |
|---|---|---|
| What it is | Enterprise large language models and developer platform for custom AI applications. | C1 is a company focused on developing and deploying advanced AI models for various applications. |
| Category | Foundation Model, Large Language Model, Generative AI, API Platform | Foundation Model, Generative AI, AI Infrastructure, API Platform |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2017 | 2019 |
| Headquarters | Tel Aviv, Israel | San Francisco, United States |
| Status | Active | Inactive |
Size, funding and growth
| Measure | AI21 Labs | C1 |
|---|---|---|
| Employees | 221 | Not published |
| Headcount growthLast 12 months | +32.0% | Not published |
| Total funding | $327M | Not published |
| Latest round | Series C | Not published |
| Valuation | $1.4B | Not published |
| LinkedIn followers | 35,891 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | AI21 Labs | C1 |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 71/100 | 34/100 |
| Traction | 60/100 | 35/100 |
| Team | 100/100 | Not published |
| Community | 8/100 | 15/100 |
| Search visibility | 40/100 | 4/100 |
| Quality | 76/100 | 45/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (50/100) | Not published |
| Domain ratingLink authority, 0-100 | 75/100 | 5/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | AI21 Labs | C1 |
|---|---|---|
| CDN | Cloudflare | Not detected |
| CMS | WordPress | Not detected |
| Frameworks | Jquery | Not detected |
| Analytics | Google Analytics 4, Google Tag Manager, Amplitude | Not detected |
| Support stack | HubSpot | Not detected |
AI21 Labs vs C1: common questions
Which is better, AI21 Labs or C1?
On our 0-100 score AI21 Labs rates higher (71/100 against 34/100). 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 AI21 Labs and C1 compare on the numbers?
AI21 Labs leads on our overall score (71/100 against 34/100), domain rating (75/100 against 5/100).
Read the full AI21 Labs review and pricing or the C1 review and pricing. You can also browse other AI21 Labs alternatives we track.