Cajal vs OpenAI
Cajal vs OpenAI, compared side by side on 24 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: Cajal is on 55/100 and OpenAI on 86/100.
Where each one leads
Cajal
Leads on none of the measures we hold for both companies.
OpenAI
- our overall score: 86/100 against 55/100
- agent readiness: 39/100 against 22/100
- domain rating: 93/100 against 9/100
- headcount: 10,540 against 3
- funding raised: $191B against $4.5M
- LinkedIn following: 11,490,460 against 559
At a glance
| Measure | Cajal | OpenAI |
|---|---|---|
| What it is | Scaling formal verification to accelerate scientific discovery | OpenAI is an AI research and deployment company dedicated to ensuring that artificial general intelligence benefits all of humanity. |
| Category | B2B, Big Data, Foundation Model, Formal Verification | Artificial Intelligence, Large Language Models, Generative AI, Foundation Models |
| Sells toBusiness model | B2B | B2B, B2C |
| Offering | Software | Platform |
| Founded | 2025 | 2015 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Cajal | OpenAI |
|---|---|---|
| Employees | 3 | 10,540 |
| Headcount growthLast 12 months | Not published | +106.7% |
| Total funding | $4.5M | $191B |
| Latest round | Seed | Equity Round |
| Valuation | Not published | $852B |
| LinkedIn followers | 559 | 11,490,460 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Cajal | OpenAI |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 55/100 | 86/100 |
| Traction | 39/100 | 60/100 |
| Team | 60/100 | 90/100 |
| Community | 3/100 | 45/100 |
| Search visibility | 40/100 | 71/100 |
| Quality | 50/100 | 98/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (22/100) | F (39/100) |
| Domain ratingLink authority, 0-100 | 9/100 | 93/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Cajal | OpenAI |
|---|---|---|
| Hosting | Vercel | Vercel |
| CDN | Vercel | Cloudflare |
| Frameworks | Next.js, Tailwind CSS | Next.js, Tailwind CSS |
| Open source | Yes | Yes |
Product and pricing
| Measure | Cajal | OpenAI |
|---|---|---|
| Key features | Not published | Connectors to Company Knowledge, Custom Connectors via MCP, Record Mode, Flexible Pricing with Credits, SSO for ChatGPT Team |
What users say
| Measure | Cajal | OpenAI |
|---|---|---|
| Community ratingVisitor votes on StartupHub | 1.0/5 from 1 vote | 5.0/5 from 1 vote |
| Reddit sentimentThreads we track | Not published | 2 positive, 4 negative across 6 threads |
“OpenAI is an AI research and deployment company. OpenAI's mission is to create safe and powerful AI that benefits all of humanity. We are an unofficially-run community. OpenAI makes Sora, ChatGPT, and DALL·E 3.”r/
Cajal vs OpenAI: common questions
Which is better, Cajal or OpenAI?
On our 0-100 score OpenAI rates higher (86/100 against 55/100). 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 24 data points above: read the rows that match what you are buying for.
How do Cajal and OpenAI compare on the numbers?
OpenAI leads on our overall score (86/100 against 55/100), agent readiness (39/100 against 22/100), domain rating (93/100 against 9/100), headcount (10,540 against 3), funding raised ($191B against $4.5M), LinkedIn following (11,490,460 against 559).
What do real users say about Cajal and OpenAI?
OpenAI: 2 positive and 4 negative mentions across 6 Reddit threads we track.
Read the full Cajal review and pricing or the OpenAI review and pricing. You can also browse other Cajal alternatives we track.