hermes-agent vs LangChain
Side-by-side comparison of two AI agent tools
Short answer
- LangChain has had no commit in 32 months; hermes-agent is actively maintained (33,428 commits in the last 90 days).
- hermes-agent is growing faster: +5,710 GitHub stars in the last 30 days vs +2 for LangChain.
- Pick hermes-agent for: the agent that grows with you. Pick LangChain for: reference implementations of several LangChain agents as Streamlit apps.
From GitHub data refreshed daily.
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hermes-agentopen-source
The agent that grows with you
LangChainopen-source
Reference implementations of several LangChain agents as Streamlit apps
Metrics
| hermes-agent | LangChain | |
|---|---|---|
| Stars | 250.9k | 1.6k |
| Star velocity /mo | 5.7k | 2.2105263157894735 |
| Commits (90d) | 33.4k | 0 |
| Releases (6m) | 10 | 0 |
| Overall score | 0.946551175635728 | 0.16744302204886327 |
Pros
- +Multiple complete, working examples covering diverse agent patterns from basic chat to complex document Q&A systems
- +Ready-to-deploy Streamlit applications with live demos available for immediate testing and exploration
- +Demonstrates best practices for LangChain-Streamlit integration including callback handling, memory management, and user feedback collection
Cons
- -Some examples use potentially unsafe tools like PythonAstREPLTool that are vulnerable to arbitrary code execution
- -Limited to the LangChain ecosystem and may not showcase integration with other agent frameworks or libraries
- -Most examples require external API keys and services to run fully, creating setup barriers for immediate testing
Use Cases
- •Rapid prototyping of conversational AI agents with interactive web interfaces for testing and demonstration
- •Building document Q&A systems that can chat about custom content and provide contextual answers from uploaded files
- •Creating natural language interfaces for database queries and data analysis tools
FAQ
- Which is more popular, hermes-agent or LangChain?
- hermes-agent has more GitHub stars (250,877 vs 1,644).
- Which is more actively developed, hermes-agent or LangChain?
- hermes-agent had more commits in the last 90 days (33,428 vs 0).
- Should I use hermes-agent or LangChain?
- Compare their capabilities, limitations and "best for" notes above. Both are open source, so trying each on a small task is the fastest way to decide.