vioscale
Comparison

DSPy 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.

DSPy full profile →LangChain full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
DSPy61
★LangChain81
Score
Vioscale score
DSPy61 / 100medium · 68%updating
LangChain81 / 100medium · 70%updating
Pricing
Free tier
DSPy✓
LangChain✓
Model
DSPycommercial
LangChainfreemium
Price level
DSPyfree
LangChainmid
Starting price
DSPy–
LangChain$39
Transparent
DSPy✓
LangChain✓
Integrations
Count
DSPy1
LangChain1,000
Security
Disclosure policy
DSPy–
LangChain✓
Gdpr
DSPy–
LangChain✓
Hipaa
DSPy–
LangChain✓
Iso27001
DSPy–
LangChain✓
Scorecard
DSPy–
LangChain5.9
Soc2
DSPy–
LangChain✓
Vulnerabilities
Reliability
Sla pct
DSPy–
LangChain99.5
Status page
DSPy✓
LangChain✓
Adoption
Dependent repos
DSPy3
LangChain18,663
Github stars
DSPy37,611
LangChain145,063
Package downloads weekly
DSPy156,385
LangChain2,967,570
Activity
Commits last 30d
DSPy67
LangChain100
Release
Cadence days
DSPy18
LangChain–
History
DSPy20 items
LangChain20 items
License
Spdx
DSPyMIT
LangChainMIT
Language
Primary
DSPyPython
LangChainPython
Market
Availability

Capabilities

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

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

What each one is

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

DSPy

A Python framework for developing AI applications through declarative components and modular patterns, with built-in optimization that automatically tunes system performance against defined metrics.

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.

DSPy

Open sourceFree tier
as of verify ↗

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
DSPy✗
LangChain✓
CLI
DSPy✓
LangChain✗
Deployment
Cloud / SaaS
DSPy✗
LangChain✓
Self-hosted
DSPy✓
LangChain✓
Hybrid
DSPy✗
LangChain✓

Integrations

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

In common (1)
  • OpenAI

DSPy

1 total - 0 not shared
  • OpenAI
Independently observed

LangChain

Leader
9 total - 8 not shared
  • Anthropic
  • Cohere
  • Google
  • 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.