Anthropic vs OpenAI
Anthropic vs OpenAI, 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: Anthropic is on 76/100 and OpenAI on 82/100.
Where each one leads
Anthropic
- agent readiness: 46/100 against 39/100
- funding raised: $317B against $21B
OpenAI
- our overall score: 82/100 against 76/100
- headcount: 10,452 against 5
- headcount growth: +43.6% against -100.0%
At a glance
| Measure | Anthropic | OpenAI |
|---|---|---|
| What it is | Anthropic is an AI safety and research company building reliable, interpretable, and steerable AI systems, best known for the Claude family of models. | Artificial intelligence research and deployment company focused on developing advanced AI models like GPT-5.6 and GPT-Live, offering products such as ChatGPT and an API platform. |
| Category | Artificial Intelligence, Machine Learning, Frontier AI Lab, AGI Research | Frontier AI Lab, AGI Research, Foundation Model, Large Language Model |
| Sells toBusiness model | B2B | B2B, B2C |
| Offering | Software | Platform |
| Founded | 2021 | 2015 |
| Headquarters | San Francisco, USA | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Anthropic | OpenAI |
|---|---|---|
| Employees | 5 | 10,452 |
| Headcount growthLast 12 months | -100.0% | +43.6% |
| Total funding | $317B | $21B |
| Latest round | Series B | Share Sale |
| Valuation | $965B | $500B |
| LinkedIn followers | Not published | 11,484,918 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Anthropic | OpenAI |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 76/100 | 82/100 |
| Traction | 48/100 | 60/100 |
| Team | 70/100 | 70/100 |
| Community | 8/100 | Not published |
| Search visibility | 53/100 | 65/100 |
| Quality | 96/100 | 98/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (46/100) | F (39/100) |
| Domain ratingLink authority, 0-100 | 92/100 | 93/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Anthropic | OpenAI |
|---|---|---|
| Hosting | Not detected | Vercel |
| CDN | Cloudflare | Cloudflare |
| CMS | Webflow | Not detected |
| Frameworks | Not detected | Next.js, Tailwind CSS |
| Payments | Not detected | Stripe |
| Analytics | Not detected | Singular |
| Support stack | Not detected | Discourse, Gradual |
Anthropic vs OpenAI: common questions
Which is better, Anthropic or OpenAI?
On our 0-100 score OpenAI rates higher (82/100 against 76/100). 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 Anthropic and OpenAI compare on the numbers?
Anthropic leads on agent readiness (46/100 against 39/100), funding raised ($317B against $21B). OpenAI leads on our overall score (82/100 against 76/100), headcount (10,452 against 5), headcount growth (+43.6% against -100.0%).
Read the full Anthropic review and pricing or the OpenAI review and pricing. You can also browse other Anthropic alternatives we track.