Home/Compare/langchain vs PurpleLlama

Comparison

langchain vs PurpleLlama

Verdict

Pick langchain when license: langchain is MIT, PurpleLlama is Other; pick PurpleLlama when license: PurpleLlama is Other, langchain is MIT.

Markdown twin · langchain alternatives · PurpleLlama alternatives

GraphCanon updated today

langchain logo

langchain

langchain-ai/langchain

142kpushed Jul 11, 2026
vs
PurpleLlama logo

PurpleLlama

meta-llama/PurpleLlama

4.3kpushed Jul 1, 2026

Trust & integrity

SignallangchainPurpleLlama
Maintenance
Very active (0d since push)
As of today · github_public_v1
Active (10d since push)
As of today · github_public_v1
Provenance
Not a fork · Organization account
As of today · github_public_v1
Not a fork · Organization account
As of today · github_public_v1
Security (OSV)
No lockfile
As of today · none
No lockfile
As of today · none

Tagline

langchain
The agent engineering platform.
PurpleLlama
Set of tools to assess and improve LLM security.

Stars

langchain
142k
PurpleLlama
4.3k

Forks

langchain
24k
PurpleLlama
747

Open issues

langchain
419
PurpleLlama
75

Language

langchain
Python
PurpleLlama
Python

Adopt for

langchain
LangChain is an open-source platform designed specifically for building agents and applications that leverage large language models (LLMs). It provides a standard framework to develop interoperable components and connect
PurpleLlama
-

Persona

langchain
-
PurpleLlama
-

Runtime

langchain
-
PurpleLlama
-

License

langchain
MIT License, allowing free use for both personal and commercial purposes under its stipulated terms.
PurpleLlama
Other

Last pushed

langchain
Jul 11, 2026
PurpleLlama
Jul 1, 2026

Categories

langchain
AI Agents, LLM Frameworks
PurpleLlama
AI Agents, Inference & Serving, LLM Frameworks

Trust and health

Maintenance

langchain
Very active (96%)
PurpleLlama
Active (82%)

Days since push

langchain
0d
PurpleLlama
10d

Open issues (now)

langchain
419
PurpleLlama
75

Full report

langchain
Trust report
PurpleLlama
Trust report

Choose langchain if…

  • License: langchain is MIT, PurpleLlama is Other.
  • Pricing: LangChain itself is open-source and free to use. However, it might rely on paid services or premium models from external platforms like OpenAI..
  • Tags unique to langchain: agents, ai-agents, anthropic, chatgpt.
  • * When aiming to build complex AI-powered agents or applications requiring high-level capabilities like planning, subagent interaction, and file system operations.

When NOT to use langchain

  • * When working on smaller, less complex projects where full-scale integration with sophisticated components is not necessary as LangChain's extensive features might introduce unnecessary complexity.
  • * If you are primarily focused on JavaScript or TypeScript development as the primary focus of LangChain is Python. Although there is a JS/TS equivalent (LangChain.js), it may not offer the same depth
  • * For projects requiring heavy customization at lower levels, where a more granular control over individual components is required rather than working with an integrated framework.

Choose PurpleLlama if…

  • License: PurpleLlama is Other, langchain is MIT.
  • Tags unique to PurpleLlama: python.
  • Also covers Inference & Serving.

When NOT to use PurpleLlama

  • AI Agents: Don't use an agent loop when a deterministic workflow would do; agents add latency, cost, and non-determinism.
  • Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic.
  • LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves.

Explore

Sources

Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.

GitHub stars on cards: langchain 142k · PurpleLlama 4.3k (synced Jul 11, 2026).

Common questions

What is the difference between langchain and PurpleLlama?
langchain: The agent engineering platform.. PurpleLlama: Set of tools to assess and improve LLM security.. See the comparison table for live GitHub stats and shared categories.
When should I choose langchain over PurpleLlama?
Choose langchain over PurpleLlama when License: langchain is MIT, PurpleLlama is Other; Pricing: LangChain itself is open-source and free to use. However, it might rely on paid services or premium models from external platforms like OpenAI.; Tags unique to langchain: agents, ai-agents, anthropic, chatgpt; * When aiming to build complex AI-powered agents or applications requiring high-level capabilities like planning, subagent interaction, and file system operations.
When should I choose PurpleLlama over langchain?
Choose PurpleLlama over langchain when License: PurpleLlama is Other, langchain is MIT; Tags unique to PurpleLlama: python; Also covers Inference & Serving.
When should I avoid langchain?
* When working on smaller, less complex projects where full-scale integration with sophisticated components is not necessary as LangChain's extensive features might introduce unnecessary complexity. * If you are primarily focused on JavaScript or TypeScript development as the primary focus of LangChain is Python. Although there is a JS/TS equivalent (LangChain.js), it may not offer the same depth * For projects requiring heavy customization at lower levels, where a more granular control over individual components is required rather than working with an integrated framework.
When should I avoid PurpleLlama?
AI Agents: Don't use an agent loop when a deterministic workflow would do; agents add latency, cost, and non-determinism. Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic. LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves.
Is langchain or PurpleLlama more popular on GitHub?
langchain has more GitHub stars (141,504 vs 4,269). Stars measure visibility, not whether either tool fits your constraints.
Are langchain and PurpleLlama open source?
Yes - both are open-source projects on GitHub (langchain: MIT, PurpleLlama: Other).
Where can I find alternatives to langchain or PurpleLlama?
GraphCanon lists graph-backed alternatives at langchain alternatives and PurpleLlama alternatives (langchain markdown twin, PurpleLlama markdown twin), ranked by typed relationship edges rather than popularity votes.
Is there a machine-readable version of this comparison?
Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
Which is better maintained, langchain or PurpleLlama?
langchain: Very active. PurpleLlama: Active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
Where are the full trust reports for langchain and PurpleLlama?
GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: langchain trust report; PurpleLlama trust report.