Decision Workspace
langchain-ai-rust vs synaptic-macros vs synaptic-deep
Side-by-side comparison of Rust crates
47
langchain-ai-rust
experimentalv5.0.1
Build LLM applications in Rust with type safety: chains, agents, RAG, LangGraph, embeddings, vector stores, and 20+ document loaders. A LangChain port supporting OpenAI, Claude, Gemini, Mistral, Bedrock, Ollama, and more. Includes streaming, structured output, and multi-agent (Deep Agent) workflows.
56
synaptic-macros
experimentalv0.4.0
Procedural macros for the Synaptic framework (#[tool], #[chain], #[entrypoint], etc.)
55
synaptic-deep
experimentalv0.4.0
Deep agent harness for Synaptic — planning, filesystem, subagents, skills, memory
Core Metrics
| langchain-ai-rust | synaptic-macros | synaptic-deep | |
|---|---|---|---|
| Health Score | 47 | 56 | 55 |
| Total Downloads | 96 | 672 | 215 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 62 | 12 |
| Releases | 2 | 11 | 11 |
| Last Updated | 118d ago | 89d ago | 89d ago |
| Age | 3m | 3m | 3m |
Health Breakdown
langchain-ai-rust
Maintenance
11
Quality
15
Community
6
Popularity
2
Documentation
13
synaptic-macros
Maintenance
20
Quality
13
Community
10
Popularity
3
Documentation
10
synaptic-deep
Maintenance
20
Quality
14
Community
8
Popularity
3
Documentation
10
Technical Details
| langchain-ai-rust | synaptic-macros | synaptic-deep | |
|---|---|---|---|
| Version | 5.0.1 | 0.4.0 | 0.4.0 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT | MIT | MIT |
| Dependencies | 81 | 11 | 20 |
| Crate Size | 646KB | 31KB | 45KB |
| Features | 42 | 1 | 7 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •synaptic-macros leads with a health score of 56/100, but none of the options score above 80.
- •synaptic-macros, synaptic-deep are pre-1.0 — API may change.