LangChainThe open agent platform to own your intelligence
vs
MastraTypeScript AI Framework for Agents and Apps
Comparison · AI Agents · weekly run Nov 3
LangChain vs Mastra
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
LangChain is the stronger AI pick in AI Agents: it has a visibility score of 10.4 versus 1.2 for Mastra, and ranks ahead in 100% of the answers that name both.
Choose LangChain if…
- You want the brand AI engines rank higher (10.4 vs 1.2)
- You want a lower entry price ($39 vs $250)
- You need a self-hosted or on-premises option
- You prefer a larger, established vendor (201–500 employees)
Choose Mastra if…
- AI answers describe it more positively (100% vs 17% positive)
- Flat tiers pricing suits your budget better than per seat
- Type-safe, production-grade application code
- Suited to serious production systems
AI visibility side by side
Latest weekly run · Nov 3
| Metric | LangChain | Mastra |
|---|---|---|
| Visibility score | 10.4% | 1.2% |
| Change vs last week | New | New |
| Rank in AI Agents | #12 | #56 |
| Share of voice | 2.7% | 0.5% |
| Mentions this run | 18 | 3 |
| Positive in AI answers | 17% | 100% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
LangChain 0pp · Mastra 0pp over 0 weekly runs.
Engine by engine
LangChain leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
LangChainMastra
Head to head in AI answers
1 engine answers name both brands
1LangChain ranked higher
0Mastra ranked higher
| Prompt | Engine | LangChain | Mastra |
|---|---|---|---|
| Compare the leading AI Agents platforms | Perplexity | #7 | #22 |
Features, pricing & fit
| Dimension | LangChain | Mastra |
|---|---|---|
| Pricing model | Per seat | Flat tiers |
| Entry price | Free; paid from $39 per seat / mo | Free; paid from $250 / mo |
| Free plan | Yes | Yes |
| Deployment | Cloud (SaaS), hybrid (SaaS control plane with self-hosted data plane), or self-hosted in the customer's VPC | Self-hosted on any Node.js-compatible environment, or hosted on Mastra Cloud and Mastra Platform. |
| Support | Community forum, Support portal, Email support, Slack | Shared Slack support channel (Enterprise), Dedicated support engineer (Enterprise), SLA support 8-5 Monday-Friday, 8am-6pm PST |
| Founded | 2023 | 2024 |
| Headquarters | San Francisco, CA, United States | San Francisco |
| Employees | 201–500 | 11–50 |
| Funding | Series B, led by IVP | Series A · $35M raised |
| Best for | Teams building agents that need control over models, context, memory and deployment, and the ability to test, govern and improve them in production | Developers and teams building AI agents in TypeScript and JavaScript |
Plans side by side
LangChain
Developer$0seat per month, then pay as you go
Plus$39seat per month, then pay as you go
EnterpriseCustomcustom pricing, then pay as you go
Pros and cons
Themes from the AI answers that mention each brand
LangChain
- Stateful multi-agent orchestration via state graphs
- Strong open-source adoption with large download numbers
- Suited to enterprise agent loops
- Heavy developer framework that requires coding
Mastra
- Type-safe, production-grade application code
- Suited to serious production systems
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “LangChain vs Mastra”, https://slateindex.ai/compare/langchain-vs-mastra, data of Nov 3, 2026. Licence: CC BY 4.0.