Comparison
koog vs langchain
Verdict
Pick koog when koog is primarily Kotlin; langchain is Python; pick langchain when langchain is primarily Python; koog is Kotlin.
Markdown twin · koog alternatives · langchain alternatives
GraphCanon updated today
vs
Trust & integrity
| Signal | koog | langchain |
|---|---|---|
| Maintenance | Active (9d since push) As of today · github_public_v1 | Very active (0d since push) As of 1d · github_public_v1 |
| Provenance | Not a fork · Organization account As of today · github_public_v1 | Not a fork · Organization account As of 1d · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of today · osv@v1 | No lockfile (source not queried) As of 4d · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- koog
- Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-brow
- langchain
- The agent engineering platform.
Stars
- koog
- 4.4k
- langchain
- 142k
Forks
- koog
- 447
- langchain
- 24k
Open issues
- koog
- 162
- langchain
- 419
Language
- koog
- Kotlin
- langchain
- Python
Adopt for
- koog
- -
- 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
Persona
- koog
- -
- langchain
- -
Runtime
- koog
- -
- langchain
- -
License
- koog
- Apache-2.0
- langchain
- MIT License, allowing free use for both personal and commercial purposes under its stipulated terms.
Last pushed
- koog
- Jul 6, 2026
- langchain
- Jul 14, 2026
Categories
- koog
- AI Agents, Inference & Serving, LLM Frameworks
- langchain
- AI Agents, LLM Frameworks
Trust and health
Maintenance
- koog
- Active (82%)
- langchain
- Very active (96%)
Days since push
- koog
- 9d
- langchain
- 0d
Open issues (now)
- koog
- 162
- langchain
- 419
Full report
- koog
- Trust report
- langchain
- Trust report
Choose koog if…
- koog is primarily Kotlin; langchain is Python.
- License: koog is Apache-2.0, langchain is MIT.
- Tags unique to koog: agentframework, agentic-ai, ai, ai-agents-framework.
- Also covers Inference & Serving.
When NOT to use koog
- 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.
Choose langchain if…
- langchain is primarily Python; koog is Kotlin.
- License: langchain is MIT, koog is Apache-2.0.
- 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: ai-agents, chatgpt, deepagents, enterprise.
- * 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.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (JetBrains/koog) · observed Jul 15, 2026
- GitHub forks (JetBrains/koog) · observed Jul 15, 2026
- Last push (JetBrains/koog) · observed Jul 6, 2026
- License file (Apache-2.0) · observed Jul 15, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
- GitHub stars (langchain-ai/langchain) · observed Jul 14, 2026
- GitHub forks (langchain-ai/langchain) · observed Jul 14, 2026
- Last push (langchain-ai/langchain) · observed Jul 14, 2026
- License file (MIT) · observed Jul 14, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: koog 4.4k · langchain 142k (synced Jul 15, 2026).
Common questions
- What is the difference between koog and langchain?
- koog: Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-brow. langchain: The agent engineering platform.. See the comparison table for live GitHub stats and shared categories.
- When should I choose koog over langchain?
- Choose koog over langchain when koog is primarily Kotlin; langchain is Python; License: koog is Apache-2.0, langchain is MIT; Tags unique to koog: agentframework, agentic-ai, ai, ai-agents-framework; Also covers Inference & Serving.
- When should I choose langchain over koog?
- Choose langchain over koog when langchain is primarily Python; koog is Kotlin; License: langchain is MIT, koog is Apache-2.0; 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: ai-agents, chatgpt, deepagents, enterprise; * 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 avoid koog?
- 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.
- 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.
- Is koog or langchain more popular on GitHub?
- langchain has more GitHub stars (141,713 vs 4,447). Stars measure visibility, not whether either tool fits your constraints.
- Are koog and langchain open source?
- Yes - both are open-source projects on GitHub (koog: Apache-2.0, langchain: MIT).
- Where can I find alternatives to koog or langchain?
- GraphCanon lists graph-backed alternatives at koog alternatives and langchain alternatives (koog markdown twin, langchain 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, koog or langchain?
- koog: Active. langchain: Very 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 koog and langchain?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: koog trust report; langchain trust report.