Hebbia vs Letta
Hebbia vs Letta, compared side by side on 19 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: Hebbia is on 67/100 and Letta on 35/100.
Where each one leads
Hebbia
- our overall score: 67/100 against 35/100
- headcount: 156 against 15
- LinkedIn following: 53,791 against 5,596
Letta
- agent readiness: 49/100 against 43/100
At a glance
| Measure | Hebbia | Letta |
|---|---|---|
| What it is | Hebbia is an AI platform for knowledge work, automating complex tasks for finance, law, and Fortune 500 companies. | An operating system for building stateful AI agents, managing context, memory, and resource allocation. |
| Category | Agentic AI, AI Agent, Foundation Model, Large Language Model | Agentic AI, AI Agent, Foundation Model, Operating System |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | 2021 | 2023 |
| Headquarters | New York, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Hebbia | Letta |
|---|---|---|
| Employees | 156 | 15 |
| Total funding | $100M | Not published |
| Latest round | Series B | Not published |
| LinkedIn followers | 53,791 | 5,596 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Hebbia | Letta |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 67/100 | 35/100 |
| Traction | 60/100 | 12/100 |
| Team | 30/100 | 60/100 |
| Search visibility | 68/100 | 32/100 |
| Quality | 78/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (43/100) | D (49/100) |
| Domain ratingLink authority, 0-100 | 70/100 | 72/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Hebbia | Letta |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Vercel | Cloudflare |
| Analytics | Google Tag Manager, Facebook Pixel | Plausible |
| Support stack | HubSpot | Not detected |
| Open source | No | Yes |
Product and pricing
| Measure | Hebbia | Letta |
|---|---|---|
| Key features | Any Task Execution, Any Data Reasoning, Total Transparency, Enterprise Security, AI Agent Orchestration, Cross-Firm Knowledge Leverage | Stateful Agent OS, Advanced Context & Memory Management, Tool Rules for Reliability, Agents-as-a-Service Deployment, Agent Development Environment, Custom Tool Integration |
Hebbia vs Letta: common questions
Which is better, Hebbia or Letta?
On our 0-100 score Hebbia rates higher (67/100 against 35/100). 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 19 data points above: read the rows that match what you are buying for.
How do Hebbia and Letta compare on the numbers?
Hebbia leads on our overall score (67/100 against 35/100), headcount (156 against 15), LinkedIn following (53,791 against 5,596). Letta leads on agent readiness (49/100 against 43/100).
Read the full Hebbia review and pricing or the Letta review and pricing. You can also browse other Hebbia alternatives we track.