LLMStack vs Mastra
LLMStack vs Mastra, 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: LLMStack is on 16/100 and Mastra on 77/100.
Where each one leads
LLMStack
- headcount growth: +500.0% against +204.5%
Mastra
- our overall score: 77/100 against 16/100
- agent readiness: 58/100 against 44/100
- domain rating: 76/100 against 22/100
- headcount: 53 against 3
- LinkedIn following: 6,591 against 2,150
At a glance
| Measure | LLMStack | Mastra |
|---|---|---|
| What it is | Open-source, no-code platform for building and deploying AI agents, workflows, and generative AI applications. | An open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby. |
| Category | Agentic AI, AI Agent, Foundation Model, Generative AI | Agentic AI, AI Agents, Developer Tools, Open Source |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2023 | 2024 |
| Headquarters | Not published | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | LLMStack | Mastra |
|---|---|---|
| Employees | 3 | 53 |
| Headcount growthLast 12 months | +500.0% | +204.5% |
| Total funding | Not published | $35.5M |
| Latest round | Not published | Series A |
| LinkedIn followers | 2,150 | 6,591 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | LLMStack | Mastra |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 16/100 | 77/100 |
| Traction | 6/100 | 70/100 |
| Team | Not published | 90/100 |
| Community | Not published | 38/100 |
| Search visibility | 32/100 | 68/100 |
| Quality | Not published | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (44/100) | D (58/100) |
| Domain ratingLink authority, 0-100 | 22/100 | 76/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | LLMStack | Mastra |
|---|---|---|
| Hosting | Vercel | Vercel |
| CDN | Vercel | Vercel |
| Frameworks | Not detected | Next.js, Tailwind CSS |
| Analytics | Google Analytics 4 | Not detected |
| Open source | Yes | Yes, 15,100 GitHub stars |
| Self-hostable | Yes | Yes |
Product and pricing
| Measure | LLMStack | Mastra |
|---|---|---|
| Key features | No-code AI App Builder, Model Chaining & Provider Support, Bring Your Own Data, Collaborative App Building, Open-source Platform | AI Agent Framework, Workflows, RAG, Evals, Memory & Tool Selection, Open Source & Modular |
What users say
| Measure | LLMStack | Mastra |
|---|---|---|
| Community ratingVisitor votes on StartupHub | Not published | 5.0/5 from 2 votes |
| Reddit sentimentThreads we track | 4 positive, 0 negative across 4 threads | Not published |
“LLMStack. LLMStack is the low-code platform to automate workflows with LLMs. Read more: https://github.com/trypromptly/LLMStack [link]”r/
LLMStack vs Mastra: common questions
Which is better, LLMStack or Mastra?
On our 0-100 score Mastra rates higher (77/100 against 16/100). 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 LLMStack and Mastra compare on the numbers?
LLMStack leads on headcount growth (+500.0% against +204.5%). Mastra leads on our overall score (77/100 against 16/100), agent readiness (58/100 against 44/100), domain rating (76/100 against 22/100), headcount (53 against 3), LinkedIn following (6,591 against 2,150).
What do real users say about LLMStack and Mastra?
LLMStack: 4 positive and 0 negative mentions across 4 Reddit threads we track.
Read the full LLMStack review and pricing or the Mastra review and pricing. You can also browse other LLMStack alternatives we track.