Decision Workspace
langchain-rust-openrouter vs langchain-rust vs llm-chain
Side-by-side comparison of Rust crates
42
langchain-rust-openrouter
experimentalv4.6.0
LangChain for Rust with OpenRouter integration - unified access to 200+ LLM and embedding models
48
langchain-rust
growingv4.6.0
LangChain for Rust, the easiest way to write LLM-based programs in Rust
45
llm-chain
growingv0.13.0
A library for running chains of LLMs (such as ChatGPT) in series to complete complex tasks, such as text summation.
Core Metrics
| langchain-rust-openrouter | langchain-rust | llm-chain | |
|---|---|---|---|
| Health Score | 42 | 48 | 45 |
| Total Downloads | 17 | 133.3K | 84.6K |
| 30d Downloads | 3 | 2.7K | 2.1K |
| Dependents | 0 | 51 | 92 |
| Releases | 1 | 68 | 30 |
| Last Updated | 78d ago | 537d ago | 863d ago |
| Age | 2m | 2y 1m | 3y |
Health Breakdown
langchain-rust-openrouter
Maintenance
9
Quality
16
Community
3
Popularity
1
Documentation
13
langchain-rust
Maintenance
8
Quality
13
Community
8
Popularity
6
Documentation
13
llm-chain
Maintenance
7
Quality
12
Community
10
Popularity
6
Documentation
10
Technical Details
| langchain-rust-openrouter | langchain-rust | llm-chain | |
|---|---|---|---|
| Version | 4.6.0 | 4.6.0 | 0.13.0 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✗ No |
| License | MIT | MIT | MIT |
| Dependencies | 58 | 53 | 19 |
| Crate Size | 354KB | 339KB | 61KB |
| Features | 15 | 13 | 0 |
| Yanked % | 0.0% | 75.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •langchain-rust leads with a health score of 48/100, but none of the options score above 80.
- •⚠ langchain-rust, llm-chain have not been updated in over a year.
- •llm-chain is pre-1.0 — API may change.