LangChain vs Sema4.ai
LangChain vs Sema4.ai, compared side by side on 18 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: LangChain is on 76/100 and Sema4.ai on 51/100.
Where each one leads
LangChain
- our overall score: 76/100 against 51/100
- domain rating: 86/100 against 61/100
- headcount: 312 against 45
- funding raised: $260M against $80.0M
- LinkedIn following: 514,641 against 5,496
Sema4.ai
Leads on none of the measures we hold for both companies.
At a glance
| Measure | LangChain | Sema4.ai |
|---|---|---|
| What it is | The platform for building reliable AI agents and LLM applications. | Enterprise AI agent platform for building, operating, and scaling secure AI agents to automate complex business processes. |
| Category | Agentic AI, AI Agent, Foundation Model, Large Language Model | Agentic AI, Customer Service, AI Agents, AI Agent |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2022 | 2023 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | LangChain | Sema4.ai |
|---|---|---|
| Employees | 312 | 45 |
| Headcount growthLast 12 months | +260.4% | Not published |
| Total funding | $260M | $80.0M |
| Latest round | Not published | Seed |
| Valuation | $1K | Not published |
| LinkedIn followers | 514,641 | 5,496 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | LangChain | Sema4.ai |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 76/100 | 51/100 |
| Traction | 60/100 | 56/100 |
| Team | 70/100 | Not published |
| Community | 20/100 | Not published |
| Search visibility | 84/100 | 59/100 |
| Quality | 83/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (42/100) | D (46/100) |
| Domain ratingLink authority, 0-100 | 86/100 | 61/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | LangChain | Sema4.ai |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | Webflow | Not detected |
| Analytics | Google Tag Manager, Plausible | Not detected |
| Open source | Yes | No |
Product and pricing
| Measure | LangChain | Sema4.ai |
|---|---|---|
| Key features | Not published | Enterprise AI Agent Platform, Studio & SDK, Control Room, Work Room, Document Intelligence, Flexible Deployment |
LangChain vs Sema4.ai: common questions
Which is better, LangChain or Sema4.ai?
On our 0-100 score LangChain rates higher (76/100 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 18 data points above: read the rows that match what you are buying for.
How do LangChain and Sema4.ai compare on the numbers?
LangChain leads on our overall score (76/100 against 51/100), domain rating (86/100 against 61/100), headcount (312 against 45), funding raised ($260M against $80.0M), LinkedIn following (514,641 against 5,496).
Read the full LangChain review and pricing or the Sema4.ai review and pricing. You can also browse other LangChain alternatives we track.