FastGPT vs langflow

Common questions

What is the difference between FastGPT and langflow?

FastGPT: A knowledge-based platform for developing and deploying complex question-answering systems. langflow: A tool for building and deploying AI-powered agents and workflows. See the comparison table for live GitHub stats and shared categories.

When should I choose FastGPT over langflow?

Choose FastGPT over langflow when FastGPT is primarily TypeScript; langflow is Python; License: FastGPT is Other, langflow is MIT; LangFlow and FastGPT both provide platforms for building and deploying AI-powered agents and workflows, but they may have different approaches or features; Tags unique to FastGPT: agent, claude, deepseek, llm; Also covers Data & Retrieval, 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 langflow over FastGPT?

Choose langflow over FastGPT when langflow is primarily Python; FastGPT is TypeScript; License: langflow is MIT, FastGPT is Other; LangFlow and FastGPT both provide platforms for building and deploying AI-powered agents and workflows, but they may have different approaches or features; Tags unique to langflow: agents, chatgpt, generative-ai, large-language-models; When you need to develop AI agents and workflows that can integrate with large language models, as Langflow supports this integration directly.

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 langflow?

If your project does not require the use of large language models or multiagent systems, as Langflow's strengths lie in these areas. When you are working in an environment that does not support Python 3.10–3.14, as Langflow requires this specific version range. If you are looking for a tool that does not require the use of the uv package manager, as Langflow recommends uv for installation and running.

Is FastGPT or langflow more popular on GitHub?

langflow has more GitHub stars (154,963 vs 29,690). Stars measure visibility, not whether either tool fits your constraints.

Are FastGPT and langflow open source?

Yes - both are open-source projects on GitHub (FastGPT: Other, langflow: MIT).

Where can I find alternatives to FastGPT or langflow?

GraphCanon lists graph-backed alternatives at FastGPT alternatives and langflow alternatives (FastGPT markdown twin, langflow 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 langflow?

FastGPT: Very active. langflow: 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 langflow?

GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: FastGPT trust report; langflow trust report.