--- title: "hello-agents vs langchainrb" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/datawhalechina-hello-agents-vs-patterns-ai-core-langchainrb" tools: ["datawhalechina-hello-agents", "patterns-ai-core-langchainrb"] --- # hello-agents vs langchainrb *GraphCanon updated Jul 11, 2026* ## Verdict Pick hello-agents when hello-agents is primarily Python; langchainrb is Ruby; pick langchainrb when langchainrb is primarily Ruby; hello-agents is Python. [hello-agents](https://hello-agents.datawhale.cc) reports 65k GitHub stars, 8.1k forks, and 144 open issues, last pushed Jul 10, 2026. [langchainrb](https://rubydoc.info/gems/langchainrb) has 2.0k stars, 262 forks, and 80 open issues, last pushed May 1, 2026. Figures are from public GitHub metadata via [hello-agents's repository](https://github.com/datawhalechina/hello-agents) and [langchainrb's repository](https://github.com/patterns-ai-core/langchainrb). | | [hello-agents](/tools/datawhalechina-hello-agents.md) | [langchainrb](/tools/patterns-ai-core-langchainrb.md) | | --- | --- | --- | | Tagline | Course on building intelligent agents from scratch | Build LLM-powered applications in Ruby | | Stars | 65,432 | 1,989 | | Forks | 8,109 | 262 | | Open issues | 144 | 80 | | Language | Python | Ruby | | Adopt for | hello-agents is a comprehensive guide and hands-on tutorial for developing AI agents using LLMs (Large Language Models) and RAG methods. | - | | Persona | - | - | | Runtime | - | - | | License | hello-agents is covered under an unconventional license which may require further review before usage. | MIT | | Categories | AI Agents, LLM Frameworks | AI Agents, LLM Frameworks, Vector Databases | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [hello-agents](/tools/datawhalechina-hello-agents.md) | [langchainrb](/tools/patterns-ai-core-langchainrb.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Steady (60%) | | Days since push | 0d | 70d | | Open issues (now) | 144 | 80 | | Full report | [trust report](/tools/datawhalechina-hello-agents/trust.md) | [trust report](/tools/patterns-ai-core-langchainrb/trust.md) | ## Decision facts: hello-agents - **Requirements:** Min 4 GB RAM; Python knowledge assumed - **Adopt for:** hello-agents is a comprehensive guide and hands-on tutorial for developing AI agents using LLMs (Large Language Models) and RAG methods. - **License detail:** hello-agents is covered under an unconventional license which may require further review before usage. ## Choose when ### Choose hello-agents if… - hello-agents is primarily Python; langchainrb is Ruby. - License: hello-agents is Other, langchainrb is MIT. - Requirements: Min 4 GB RAM; Python knowledge assumed. - Tags unique to hello-agents: agent, llm, rag, tutorial. - You should use hello-agents if you are interested in practical, step-by-step instructions on building intelligent agents from the ground up. ### Choose langchainrb if… - langchainrb is primarily Ruby; hello-agents is Python. - License: langchainrb is MIT, hello-agents is Other. - Tags unique to langchainrb: agents, ai-agents, artificial-intelligence, machine-learning. - Also covers Vector Databases. ## When NOT to use hello-agents - Avoid using hello-agents if you are looking for a quick, superficial introduction to AI agents; this tool focuses heavily on in-depth learning and practical application. - Do not opt for hello-agents if you want a more general AI development resource; unlike some competitors, it has a narrower focus specifically on agent creation with advanced methods like LLMs and RAG. ## When NOT to use langchainrb - AI Agents: Don't use an agent loop when a deterministic workflow would do; agents add latency, cost, and non-determinism. - LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves. - Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. ## Common questions ### What is the difference between hello-agents and langchainrb? hello-agents: Course on building intelligent agents from scratch. langchainrb: Build LLM-powered applications in Ruby. See the comparison table for live GitHub stats and shared categories. ### When should I choose hello-agents over langchainrb? Choose hello-agents over langchainrb when hello-agents is primarily Python; langchainrb is Ruby; License: hello-agents is Other, langchainrb is MIT; Requirements: Min 4 GB RAM; Python knowledge assumed; Tags unique to hello-agents: agent, llm, rag, tutorial; You should use hello-agents if you are interested in practical, step-by-step instructions on building intelligent agents from the ground up. ### When should I choose langchainrb over hello-agents? Choose langchainrb over hello-agents when langchainrb is primarily Ruby; hello-agents is Python; License: langchainrb is MIT, hello-agents is Other; Tags unique to langchainrb: agents, ai-agents, artificial-intelligence, machine-learning; Also covers Vector Databases. ### When should I avoid hello-agents? Avoid using hello-agents if you are looking for a quick, superficial introduction to AI agents; this tool focuses heavily on in-depth learning and practical application. Do not opt for hello-agents if you want a more general AI development resource; unlike some competitors, it has a narrower focus specifically on agent creation with advanced methods like LLMs and RAG. ### When should I avoid langchainrb? AI Agents: Don't use an agent loop when a deterministic workflow would do; agents add latency, cost, and non-determinism. LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves. Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. ### Is hello-agents or langchainrb more popular on GitHub? hello-agents has more GitHub stars (65,432 vs 1,989). Stars measure visibility, not whether either tool fits your constraints. ### Are hello-agents and langchainrb open source? Yes - both are open-source projects on GitHub (hello-agents: Other, langchainrb: MIT). ### Where can I find alternatives to hello-agents or langchainrb? GraphCanon lists graph-backed alternatives at [hello-agents alternatives](/tools/datawhalechina-hello-agents/alternatives) and [langchainrb alternatives](/tools/patterns-ai-core-langchainrb/alternatives) ([hello-agents markdown twin](/tools/datawhalechina-hello-agents/alternatives.md), [langchainrb markdown twin](/tools/patterns-ai-core-langchainrb/alternatives.md)), 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](/compare/datawhalechina-hello-agents-vs-patterns-ai-core-langchainrb.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, hello-agents or langchainrb? hello-agents: Very active. langchainrb: Steady. 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 hello-agents and langchainrb? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [hello-agents trust report](/tools/datawhalechina-hello-agents/trust); [langchainrb trust report](/tools/patterns-ai-core-langchainrb/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=datawhalechina-hello-agents`](/api/graphcanon/graph?tool=datawhalechina-hello-agents) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_