Braintrust vs LangSmith Pricing (2026)
How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.
| Braintrust | LangSmith | |
|---|---|---|
| Starts at | $249/mo | $39/mo |
| Number of plans | 3 | 3 |
| Free plan | ||
| Free trial | — | — |
| Pricing model | usage-based | hybrid |
Starter
- Platform fee
- Topics
- Processed data
- Scores
- Users
- Projects
- Playgrounds
- Experiments
- Datasets
- Human review scores
- Saved table views
- Custom columns
- Custom trace views
- Included data retention
- OAuth sign-in
- Multi-factor authentication (MFA)
- SOC 2 Type II compliance
- Community support
Pro
- Platform fee
- Topics
- Processed data
- Scores
- Users
- Projects
- Playgrounds
- Experiments
- Datasets
- Human review scores
- Playground annotations
- Saved table views
- Custom columns
- Custom trace views
- Custom charts
- Environments
- Included data retention
- OAuth sign-in
- Multi-factor authentication (MFA)
- SOC 2 Type II compliance
- Role-based access control (RBAC)
- Data processing agreement (DPA)
- Community support
- Priority support
Enterprise
- Platform fee
- Topics
- Processed data
- Scores
- Users
- Projects
- Playgrounds
- Experiments
- Datasets
- Human review scores
- Loop agent
- Playground annotations
- Saved table views
- Custom columns
- Custom trace views
- Custom charts
- Environments
- Included data retention
- Custom policies
- S3 data export
- OAuth sign-in
- Multi-factor authentication (MFA)
- SOC 2 Type II compliance
- SAML single sign-on (SSO)
- Role-based access control (RBAC)
- Data processing agreement (DPA)
- Business associate agreement (BAA)
- Uptime service level agreement (SLA)
- Community support
- Priority support
- Shared Slack channel
- Guaranteed service level agreements (SLAs)
Developer
- Up to 5k base traces / mo, then pay-as-you-go
- Community support
- 1 seat
- Tracing
- Monitoring
- Insights
- Online and offline evals
- Dataset collection
- Annotation queue (human feedback)
- Prompt Hub and Playground
- Bulk data export
- Unlimited agents
- LangSmith Studio
- Expose agent as MCP server
- Real-time streaming of intermediary steps and final output
- Agent Authorization (beta)
- Access to prebuilt templates
- Add tools with a remote MCP server
- Trigger agent via API
- Use LangChain models
- Auth proxy with custom callbacks
- Bring your own image
- Configurable TTLs
- Snapshot and fork to explore parallel branches
- Port tunneling to your local machine
- Sandbox CLI
- Scale to 1000s on demand
- Platform hosting option(s): Cloud
- Community Forum
Plus
- Up to 10k base traces / mo, then pay-as-you-go
- Access to Deployment, Engine, and more
- Add unlimited seats
- Tracing
- Monitoring
- Insights
- Online and offline evals
- Dataset collection
- Annotation queue (human feedback)
- Prompt Hub and Playground
- Bulk data export
- Unlimited agents
- LangSmith Studio
- Expose agent as MCP server
- Real-time streaming of intermediary steps and final output
- Agent Authorization (beta)
- 1-Click Deploy
- Horizontally-scalable service for dedicated deployments
- Server Scale-to-Zero when idle
- Assistants API
- 30+ API endpoints including state and memory
- Cron scheduling
- Authentication & authorization for LangGraph APIs
- Access to prebuilt templates
- Add tools with a remote MCP server
- Trigger agent via API
- Use LangChain models
- Share and clone agent templates
- Unlimited agents
- Monitor traces autonomously
- Cluster agent behavior into issues
- Diagnose code failures
- Recommend fixes to prompts and code
- Create datasets for human review
- Create offline and online evals to prevent repeated failures
- Auth proxy with custom callbacks
- Bring your own image
- Configurable TTLs
- Snapshot and fork to explore parallel branches
- Port tunneling to your local machine
- Sandbox CLI
- Scale to 1000s on demand
- Platform hosting option(s): Cloud
- SSO
- Role-Based Access Control
- Organization Roles (User and Admin)
- Community Forum
- Support Portal
- Email Support
Enterprise
- Self-hosted and hybrid deployment options
- Custom SSO and RBAC
- Support SLA
- Custom seats and workspaces
- Tracing
- Monitoring
- Insights
- Online and offline evals
- Dataset collection
- Annotation queue (human feedback)
- Prompt Hub and Playground
- Bulk data export
- Unlimited agents
- LangSmith Studio
- Expose agent as MCP server
- Real-time streaming of intermediary steps and final output
- Agent Authorization (beta)
- 1-Click Deploy
- Horizontally-scalable service for dedicated deployments
- Server Scale-to-Zero when idle
- Assistants API
- 30+ API endpoints including state and memory
- Cron scheduling
- Authentication & authorization for LangGraph APIs
- Access to prebuilt templates
- Add tools with a remote MCP server
- Trigger agent via API
- Use LangChain models
- Share and clone agent templates
- Unlimited agents
- Monitor traces autonomously
- Cluster agent behavior into issues
- Diagnose code failures
- Recommend fixes to prompts and code
- Create datasets for human review
- Create offline and online evals to prevent repeated failures
- Auth proxy with custom callbacks
- Bring your own image
- Configurable TTLs
- Snapshot and fork to explore parallel branches
- Port tunneling to your local machine
- Sandbox CLI
- Scale to 1000s on demand
- Platform hosting option(s): Cloud, Hybrid, or Self-Hosted
- SSO
- Role-Based Access Control
- Organization Roles (User and Admin)
- Community Forum
- Support Portal
- Email Support
- Slack
- Team trainings
- Architectural guidance for your applications
- Access to deployed engineers
- SLA
- Custom Terms
- Infosec Review
Braintrust vs LangSmith FAQ
- Which one is cheaper?
- LangSmith is the cheaper option, starting at $39/mo vs $249/mo for Braintrust.
- Can I use either one for free?
- Both offer free plans, so you can try each without paying. Start with whichever fits your workflow better and upgrade when you hit the limits.
- How do they charge?
- Different approach here. Braintrust uses usage-based pricing, while LangSmith goes with hybrid. That changes the math depending on your team size and usage.
- Which one is a better deal?
- Depends on what you need. Braintrust: At $249/mo, they're priced accessibly for mid-stage AI teams but not trying to be the cheapest eval tool in the room — they're positioning against the 'build it yourself' crowd and tools like LangSmith or Weights & Biases. The startup discount (6–12 months free on Pro) signals they're actively trying to land early-stage AI companies before competitors do. LangSmith: At $39/seat they're not trying to be the cheapest LLM observability tool, but they're not swinging for premium either — it's a mid-market entry point aimed squarely at well-funded startups and growth-stage teams already in the LangChain ecosystem. The Startups program signals they're prioritizing ecosystem lock-in over near-term revenue.
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