vioscale
Comparison

Braintrust vs LangChain

On the evidence we track, LangChain leads this comparison with a composite score of 81/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Braintrust full profile →LangChain full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Braintrust58
★LangChain81
Score
Vioscale score
Braintrust58 / 100low · 32%
LangChain81 / 100medium · 70%
Pricing
Free tier
Braintrust–
LangChain✓
Model
Braintrust–
LangChainfreemium
Price level
Braintrust–
LangChainmid
Starting price
Braintrust–
LangChain$39
Transparent
Braintrust–
LangChain✓
Integrations
Count
Braintrust3
LangChain1,000
Security
Disclosure policy
Braintrust–
LangChain✓
Gdpr
Braintrust✓
LangChain✓
Hipaa
Braintrust✓
LangChain✓
Iso27001
Braintrust–
LangChain✓
Pci
Braintrust✓
LangChain–
Scorecard
Braintrust–
LangChain5.9
Soc2
Braintrust✓
LangChain✓
Vulnerabilities
Reliability
Sla pct
Braintrust–
LangChain99.5
Status page
Braintrust✓
LangChain✓
Adoption
Dependent repos
Braintrust–
LangChain18,663
Github stars
Braintrust–
LangChain145,063
Package downloads weekly
Braintrust–
LangChain2,967,570
Activity
Commits last 30d
Braintrust–
LangChain100
Release
History
Braintrust–
LangChain20 items
License
Spdx
Braintrust–
LangChainMIT
Language
Primary
Braintrust–
LangChainPython
Market
Availability
Braintrust–
LangChainAvailable worldwide · HQ US

Capabilities

Feature-by-feature on the axes that matter for mlops & llmops tools. “-” means undocumented, not absent.

Core
Tool role
BraintrustLLM observability / eval
LangChainLLM observability / eval
Deployment
Self-hostable / OSS core
Braintrust✓
LangChain✓
Managed cloud available
Braintrust✓
LangChain✓
On-prem / VPC deployment
Braintrust✓
LangChain✓
Observability
LLM tracing / observability
Braintrust✓
LangChain✓
Evaluation (offline / LLM-judge / human)
Braintrust✓
LangChain✓
Dev
Prompt management + versioning
Braintrust✓
LangChain✓
Tracking
Experiment tracking / model registry
Braintrust✓
LangChain-
Serving
Model serving / inference endpoint
Braintrust✗
LangChain✓
Interop
OpenTelemetry / OpenLLMetry compatible
Braintrust-
LangChain✓
Framework-agnostic
Braintrust✓
LangChain✓
Gateway
Multi-provider model support
Braintrust✓
LangChain✓
Data
No-train-on-customer-data guarantee
BraintrustUnknown
LangChainUnknown

What each one is

The product in its own terms, so the numbers below have context.

Braintrust

A platform for tracking AI agent performance at runtime, automatically discovering quality issues and behavioral patterns. Teams can run experiments, set quality expectations, and continuously improve agents through real-time trace inspection, evaluation scoring, and automated prompt optimization.

Independently observed

LangChain

Leader

LangSmith provides observability through tracing to debug agent behavior, evaluation capabilities to test and score agents with human review and automated assessments, and deployment services to run agents at scale.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Braintrust

Pricing not documented yet.

LangChain

Leader
from $39/seat/moSubscriptionFree tier

Free Developer plan (5k traces). Plus plan $39/seat/month. Enterprise custom. Usage-based pricing for compute (LCU=$1.50) and storage (LSU=$1.00).

  • DeveloperFree
    • 1 free seat
    • 5k base traces/month
    • Tracing and analytics
    • Access to LangSmith platform
  • Plus$39/seat/month + usage (LCU/LSU), 10k traces included, 1 free small deployment
    • Unlimited seats
    • 10k base traces/month
    • 1 free small serverless deployment
    • Full tracing and analytics
    • Evaluation tools
  • EnterpriseContact sales
    • Advanced administration
    • Dedicated support
    • Custom deployments
    • White-glove onboarding
    • Proactive monitoring
    • +1 more
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Braintrust✓
LangChain✓
Deployment
Cloud / SaaS
Braintrust✓
LangChain✓
Self-hosted
Braintrust✗
LangChain✓
On-premise
Braintrust✓
LangChain✗
Hybrid
Braintrust✓
LangChain✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (3)
  • OpenAI
  • Anthropic
  • Google

Braintrust

3 total - 0 not shared
  • OpenAI
  • Anthropic
  • Google
Independently observed

LangChain

Leader
9 total - 6 not shared
  • Cohere
  • Azure OpenAI
  • Azure AI Search
  • Microsoft Fabric
  • Azure Kubernetes Service
  • OpaquePrompts
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.