LangGraph vs Mastra (2026): which should you pick?
As of Nov 13, 2026, Mastra grades higher than LangGraph: 2.8 against 2.6 out of 4.0.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
LangGraph grades higher on the free plan. Mastra grades higher on value for money. They get the same grade on features, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
LangGraph
Open-source framework for building controllable AI agents
Mastra
TypeScript framework for building and running AI agents
Which one is for you
Pick LangGraph if
- Fits if you write Python or JavaScript and want control over each agent step
- Works for teams that already use LangChain or LangSmith
Look elsewhere if
- Not for you if you want a visual builder, because the framework itself has none
- Pricey if you deploy on LangChain's servers, which needs Plus at $39 a seat a month
- Watch out: traces, Agent Server compute and sandboxes are metered in LSUs at $1 each past the allowances
- Tight if you need history, since base traces are kept 14 days and 180-day traces cost extra
Pick Mastra if
- Fits if you write TypeScript and want to build your own agents
- Works for teams that want to deploy agents on Vercel or Cloudflare
Look elsewhere if
- Not for you if you want no-code, since building an agent means writing TypeScript
- Pricey if you grow, as past the allowance egress is $0.10 a GB and events $10 per 100K
- Watch out: RBAC, SSO and audit logs are Enterprise only, and the SOC 2 report starts at Team at $250
- Watch out: some repository folders (ee/) sit under a separate enterprise licence
How we grade them
| 2.6GPALangGraphGood | 2.8GPAMastraGood | |
|---|---|---|
| Value for money | CThe library is free, but deploying on LangChain's infrastructure needs LangSmith Plus at $39 a seat, above the category's middle of $25, with usage billed in LSUs. | AThe framework is open source and the cloud has a free plan. Starter is $25 a workspace a month and Team $250. |
| Free plan and trial | AFree outright: the MIT library has no cap, and LangSmith Developer is $0 for one seat with 5k traces a month. | BFree cloud plan: unlimited agents, users and deployments, 100K observability events and 15-day trace retention. A solo developer can live on that. |
| Features | BSingle and multi-agent control, human approval, persistent memory, streaming and an Agent Server for deployment. The framework has no visual builder. | BAgents, workflows, memory, evals, MCP servers and deployment to many hosts. Nothing in the listing is missing for code-first agent work. |
| Ease of use | DYou write code and run it yourself, or deploy an Agent Server. We found no store rating. | DNo store rating, and building an agent means writing TypeScript and running it yourself. |
| Platforms and integrations | BA code library with LangChain, LangSmith and MCP connections, plus hosted, hybrid or self-hosted deployment. No desktop or phone app. | BWeb with deployment to Vercel, Netlify and Cloudflare, and Next.js, React, Hono and Express listed. |
| Best for | building controllable AI agents in code | TypeScript developers building their own agents |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: LangGraph and Mastra. How we grade
Price against what you get
LangGraph starts at $39 a month for each person and scores 2.3 out of 4 on features, ease of use and platforms. Mastra starts at $25 a month and scores 2.3.
They score the same, and Mastra starts $14 a month lower. Of the other AI agents on the chart, 29 score higher than LangGraph for less, and 20 score higher than Mastra for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
At a glance
| LangGraph | Mastra | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | $39 per seat / month, billed monthly | $25 per workspace / month |
| Free plan | The LangGraph library is MIT-licensed and free. LangSmith Developer is $0 for 1 seat with 5k base traces a month. | Unlimited agents, users and deployments, 100K observability events, 1 GB egress, 5 connections and 15-day trace retention. |
| Free trial | None listed | None listed |
| Web | ||
| Made by | LangChain | Mastra |
| Price read from | langchain.com | mastra.ai |
| Checked | Nov 13, 2026 | Nov 12, 2026 |
Worth knowing
LangGraph
- The library is code only; there is no visual builder in the framework itself.
- Deploying on LangChain's infrastructure needs LangSmith Plus ($39 per seat / month) or Enterprise; the Developer plan has no Agent Server.
- Beyond the included allowances, traces, Agent Server compute and sandboxes are metered in LangSmith units (1 LSU = $1).
- Base traces are kept 14 days; 180-day extended traces cost extra.
Mastra
- It is a code framework, so building an agent means writing TypeScript; there is no no-code builder.
- Cloud usage past each plan's allowance is billed separately, for example $0.10 per GB of egress and $10 per 100K observability events.
- RBAC, SSO and audit logs are Enterprise only, and the SOC 2 report starts at the Team plan.
- Some directories in the repository are under a separate enterprise license (ee/), so not every file carries the main open-source terms.
Key features
LangGraph
- Graph-based agent control
- Low-level primitives for single-agent, multi-agent and hierarchical control flows in one framework.
- Human-in-the-loop
- Approval and moderation checks can be added so a person can steer or approve agent actions.
- Persistent memory
- Built-in memory stores conversation history and keeps context across sessions.
- Streaming
- Native token-by-token streaming exposes the agent's reasoning and actions as they happen.
- Agent Server deployment
- LangSmith Agent Server hosts agents in the cloud, in a hybrid setup, or fully self-hosted, with cron scheduling, an Assistants API and Studio.
Mastra
- Agents
- Typed agents are defined in code with instructions, a model, tools and runtime behavior in one place.
- Workflows
- Typed steps can be chained with retries and branches into workflows that a team can inspect.
- Memory
- Agents can keep durable context through thread-aware storage, semantic recall and an observational memory option.
- Observability and evals
- Traces, metrics and logs sit alongside evaluation tools such as scorers, datasets and experiments.
- MCP servers
- Agents, tools and other resources can be exposed as Model Context Protocol servers that any MCP-capable system can call.
- Deploy anywhere
- A Mastra app runs on any Node.js host or as a standalone server, with optional deployers for Vercel, Netlify and Cloudflare, or on Mastra Cloud.
Plans
LangGraph
LangGraph (open source)$0
MIT-licensed library you run yourself; the vendor says it is free to use.
LangSmith Developer$0
per seat / month, then pay as you go
1 seat, 5k base traces a month, community support. No Agent Server.
LangSmith Plus$39
per seat / month, billed monthly, then pay as you go
Unlimited seats, 10k base traces a month and 1 small serverless Agent Server included; extra servers and usage are billed in LSUs.
LangSmith EnterpriseCustom
Cloud, hybrid or self-hosted deployment, custom SSO, RBAC, support SLA and custom seats.
Mastra
Free$0
Unlimited agents, users and deployments, 100K observability events, 1 GB egress, 5 connections and 15-day trace retention.
Starter$25
per workspace / month
One small dedicated project, usage alerts, 250K observability events, 10 GB egress, 10 connections and 60-day trace retention.
Team$250
per workspace / month
One small and two medium dedicated projects, a SOC 2 report, 10M observability events, 100 GB egress, 50 connections and 180-day trace retention.
EnterpriseCustom
RBAC, SSO, audit logs, custom allowances and connections, and dedicated support.
Ways to pay less
LangGraph
- Startups
LangSmith for Startups
Discounted rates and credits of up to $10,000 for VC-backed startups, by application.
Mastra
No public discounts listed.
Common questions
Which is cheaper, LangGraph or Mastra?
As of Nov 13, 2026, LangGraph starts at $39 per seat / month, billed monthly, and Mastra starts at $25 per workspace / month. One is priced for each person and the other is not, so which costs less depends on how many of you use it.
Which has a free plan, LangGraph or Mastra?
As of Nov 13, 2026, both LangGraph and Mastra have a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.