OpenAI vs Sema4.ai
OpenAI vs Sema4.ai, compared side by side on 20 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: OpenAI is on 86/100 and Sema4.ai on 51/100.
Where each one leads
OpenAI
- our overall score: 86/100 against 51/100
- domain rating: 93/100 against 61/100
- headcount: 10,540 against 45
- funding raised: $509B against $80.0M
- LinkedIn following: 11,490,460 against 5,496
Sema4.ai
- agent readiness: 46/100 against 39/100
At a glance
| Measure | OpenAI | Sema4.ai |
|---|---|---|
| What it is | OpenAI is an AI research and deployment company dedicated to ensuring that artificial general intelligence benefits all of humanity. | Enterprise AI agent platform for building, operating, and scaling secure AI agents to automate complex business processes. |
| Category | Artificial Intelligence, Large Language Models, Generative AI, Foundation Models | Agentic AI, Customer Service, AI Agents, AI Agent |
| Sells toBusiness model | B2B, B2C | B2B |
| Offering | Platform | Platform |
| Founded | 2015 | 2023 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | OpenAI | Sema4.ai |
|---|---|---|
| Employees | 10,540 | 45 |
| Headcount growthLast 12 months | +106.7% | Not published |
| Total funding | $509B | $80.0M |
| Latest round | Series G (final) | Seed |
| Valuation | $852B | Not published |
| LinkedIn followers | 11,490,460 | 5,496 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | OpenAI | Sema4.ai |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 86/100 | 51/100 |
| Traction | 60/100 | 56/100 |
| Team | 90/100 | Not published |
| Community | 45/100 | Not published |
| Search visibility | 71/100 | 59/100 |
| Quality | 98/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (39/100) | D (46/100) |
| Domain ratingLink authority, 0-100 | 93/100 | 61/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | OpenAI | Sema4.ai |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Cloudflare | Cloudflare |
| Frameworks | Next.js, Tailwind CSS | Not detected |
| Open source | Yes | No |
Product and pricing
| Measure | OpenAI | Sema4.ai |
|---|---|---|
| Key features | Connectors to Company Knowledge, Custom Connectors via MCP, Record Mode, Flexible Pricing with Credits, SSO for ChatGPT Team | Enterprise AI Agent Platform, Studio & SDK, Control Room, Work Room, Document Intelligence, Flexible Deployment |
What users say
| Measure | OpenAI | Sema4.ai |
|---|---|---|
| Community ratingVisitor votes on StartupHub | 5.0/5 from 1 vote | Not published |
| Reddit sentimentThreads we track | 2 positive, 4 negative across 6 threads | Not published |
“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/
OpenAI vs Sema4.ai: common questions
Which is better, OpenAI or Sema4.ai?
On our 0-100 score OpenAI rates higher (86/100 against 51/100). 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 20 data points above: read the rows that match what you are buying for.
How do OpenAI and Sema4.ai compare on the numbers?
OpenAI leads on our overall score (86/100 against 51/100), domain rating (93/100 against 61/100), headcount (10,540 against 45), funding raised ($509B against $80.0M), LinkedIn following (11,490,460 against 5,496). Sema4.ai leads on agent readiness (46/100 against 39/100).
What do real users say about OpenAI and Sema4.ai?
OpenAI: 2 positive and 4 negative mentions across 6 Reddit threads we track.
Read the full OpenAI review and pricing or the Sema4.ai review and pricing. You can also browse other OpenAI alternatives we track.