Comparison
FastGPT vs langchain
Verdict
Pick FastGPT if fastGPT is a knowledge-based platform for developing and deploying complex question-answering systems, offering out-of-the-box capabilities for data processing, RAG retrieval, and visual AI workflow orchestration; pick langchain if langChain is a Python framework for building agents and LLM-powered applications, offering interoperable components and third-party integrations to simplify AI application development.
Markdown twin · FastGPT alternatives · langchain alternatives
GraphCanon updated Sep 30, 2026
12views this month
vs
Trust & integrity
| Signal | FastGPT | langchain |
|---|---|---|
| Maintenance | Very active (0d since push) As of Sep 18, 2026 · github_public_v1 | Very active (0d since push) As of Sep 18, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 18, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 18, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Sep 18, 2026 · osv@v1 | No lockfile (source not queried) As of Sep 18, 2026 · 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
- FastGPT
- A knowledge-based platform for developing and deploying complex question-answering systems
- langchain
- The agent engineering platform.
Stars
- FastGPT
- 30k
- langchain
- 147k
Forks
- FastGPT
- 7.3k
- langchain
- 25k
Open issues
- FastGPT
- 170
- langchain
- 541
Language
- FastGPT
- TypeScript
- langchain
- Python
Adopt for
- FastGPT
- FastGPT is a knowledge-based platform for developing and deploying complex question-answering systems, offering out-of-the-box capabilities for data processing, RAG retrieval, and visual AI workflow orchestration.
- langchain
- LangChain is a Python framework for building agents and LLM-powered applications, offering interoperable components and third-party integrations to simplify AI application development.
Persona
- FastGPT
- -
- langchain
- -
Runtime
- FastGPT
- -
- langchain
- -
License
- FastGPT
- Other
- langchain
- MIT
Last pushed
- FastGPT
- Sep 18, 2026
- langchain
- Sep 18, 2026
Categories
- FastGPT
- AI Agents, Data & Retrieval, Developer Tools, Model Training
- langchain
- AI Agents, LLM Frameworks
Trust and health
Open issues (now)
- FastGPT
- 170
- langchain
- 541
Stars delta
- FastGPT
- +324 (30d)
- langchain
- +3.0k (30d)
Open issues delta
- FastGPT
- +5 (30d)
- langchain
- +78 (30d)
Full report
- FastGPT
- Trust report
- langchain
- Trust report
Typed relationship
FastGPT alternative langchainLangChain is an agent engineering platform that could serve a similar purpose to FastGPT in creating and deploying AI agents, making them alternatives.
Choose FastGPT if…
- FastGPT is primarily TypeScript; langchain is Python.
- License: FastGPT is Other, langchain is MIT.
- LangChain is an agent engineering platform that could serve a similar purpose to FastGPT in creating and deploying AI agents, making them alternatives.
- Tags unique to FastGPT: agent, claude, deepseek, llm.
- Also covers Data & Retrieval, Developer Tools, Model Training.
- When you need a comprehensive platform that supports data processing, RAG retrieval, and visual AI workflow orchestration for developing complex question-answering systems.
When NOT to use FastGPT
- If you are looking for a platform that supports real-time AI plugin generation, as this feature is not yet available in FastGPT.
- When you need a platform that supports RAG module hot updates or Agent-loop hot updates, as these features are currently under development.
- If you require advanced debugging modes for complex workflows, as this feature is not yet implemented in FastGPT.
Choose langchain if…
- langchain is primarily Python; FastGPT is TypeScript.
- License: langchain is MIT, FastGPT is Other.
- LangChain is an agent engineering platform that could serve a similar purpose to FastGPT in creating and deploying AI agents, making them alternatives.
- Tags unique to langchain: agents, ai-agents, framework, langchain.
- Also covers LLM Frameworks.
- When you need a framework that simplifies chaining together interoperable components and third-party integrations for AI application development.
When NOT to use langchain
- If you prefer a framework that does not offer built-in capabilities for common usage patterns such as planning and subagents, as LangChain's Deep Agents provide these features.
- When you need a higher-level abstraction that does not require detailed agent orchestration, as LangChain's LangGraph is designed for low-level control over agent workflows.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (labring/FastGPT) · observed Sep 20, 2026
- GitHub forks (labring/FastGPT) · observed Sep 20, 2026
- Last push (labring/FastGPT) · observed Sep 18, 2026
- License file (Other) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 18, 2026
- Trust scan (lockfile / OSV) · observed Sep 18, 2026
- GitHub stars (langchain-ai/langchain) · observed Sep 20, 2026
- GitHub forks (langchain-ai/langchain) · observed Sep 20, 2026
- Last push (langchain-ai/langchain) · observed Sep 18, 2026
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 18, 2026
- Trust scan (lockfile / OSV) · observed Sep 18, 2026
GitHub stars on cards: FastGPT 30k · langchain 147k (synced Sep 20, 2026).
Common questions
- What is the difference between FastGPT and langchain?
- FastGPT: A knowledge-based platform for developing and deploying complex question-answering systems. langchain: The agent engineering platform.. See the comparison table for live GitHub stats and shared categories.
- When should I choose FastGPT over langchain?
- Choose FastGPT over langchain when FastGPT is primarily TypeScript; langchain is Python; License: FastGPT is Other, langchain is MIT; LangChain is an agent engineering platform that could serve a similar purpose to FastGPT in creating and deploying AI agents, making them alternatives; Tags unique to FastGPT: agent, claude, deepseek, llm; Also covers Data & Retrieval, Developer Tools, Model Training; When you need a comprehensive platform that supports data processing, RAG retrieval, and visual AI workflow orchestration for developing complex question-answering systems.
- When should I choose langchain over FastGPT?
- Choose langchain over FastGPT when langchain is primarily Python; FastGPT is TypeScript; License: langchain is MIT, FastGPT is Other; LangChain is an agent engineering platform that could serve a similar purpose to FastGPT in creating and deploying AI agents, making them alternatives; Tags unique to langchain: agents, ai-agents, framework, langchain; Also covers LLM Frameworks; When you need a framework that simplifies chaining together interoperable components and third-party integrations for AI application development.
- When should I avoid FastGPT?
- If you are looking for a platform that supports real-time AI plugin generation, as this feature is not yet available in FastGPT. When you need a platform that supports RAG module hot updates or Agent-loop hot updates, as these features are currently under development. If you require advanced debugging modes for complex workflows, as this feature is not yet implemented in FastGPT.
- When should I avoid langchain?
- If you prefer a framework that does not offer built-in capabilities for common usage patterns such as planning and subagents, as LangChain's Deep Agents provide these features. When you need a higher-level abstraction that does not require detailed agent orchestration, as LangChain's LangGraph is designed for low-level control over agent workflows.
- Is FastGPT or langchain more popular on GitHub?
- langchain has more GitHub stars (146,576 vs 29,690). Stars measure visibility, not whether either tool fits your constraints.
- Are FastGPT and langchain open source?
- Yes - both are open-source projects on GitHub (FastGPT: Other, langchain: MIT).
- Where can I find alternatives to FastGPT or langchain?
- GraphCanon lists graph-backed alternatives at FastGPT alternatives and langchain alternatives (FastGPT 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, FastGPT or langchain?
- FastGPT: Very 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 FastGPT and langchain?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: FastGPT trust report; langchain trust report.