<div align="center">
<img src="https://vectorless.dev/img/with-title.png" alt="Vectorless" width="400" style="vertical-align:middle;">
<h1>Reasoning-native Document Intelligence Engine</h1>
[](https://pypi.org/project/vectorless/)
[](https://pepy.tech/projects/vectorless)
[](https://crates.io/crates/vectorless)
[](https://crates.io/crates/vectorless)
[](https://docs.rs/vectorless)
[](LICENSE)
</div>
**Vectorless** is a reasoning-native document intelligence engine written in Rust — **no vector database, no embeddings, no similarity search**. It transforms documents into hierarchical semantic trees and uses LLMs to navigate the structure, retrieving the most relevant content through deep contextual understanding instead of vector math.
## Quick Start
### Install
```bash
pip install vectorless
```
### Index and Query
```python
import asyncio
from vectorless import Engine, IndexContext
async def main():
# Create engine — api_key and model are required
engine = Engine(
workspace="./data",
api_key="sk-...",
model="gpt-4o",
)
# Index a document (PDF or Markdown)
result = await engine.index(IndexContext.from_file("./report.pdf"))
doc_id = result.doc_id
# Query
result = await engine.query(doc_id, "What is the total revenue?")
print(result.single().content)
asyncio.run(main())
```
<details>
<summary><b>Rust</b></summary>
```toml
[dependencies]
vectorless = "0.1"
```
```rust
use vectorless::client::{EngineBuilder, IndexContext, QueryContext};
#[tokio::main]
async fn main() -> vectorless::Result<()> {
let engine = EngineBuilder::new()
.with_workspace("./data")
.with_key("sk-...")
.with_model("gpt-4o")
.build()
.await?;
// Index
let result = engine.index(IndexContext::from_path("./report.pdf")).await?;
let doc_id = result.doc_id().unwrap();
// Query
let result = engine.query(
QueryContext::new("What is the total revenue?").with_doc_id(doc_id)
).await?;
println!("Answer: {}", result.content);
Ok(())
}
```
</details>
## Examples
See [examples](examples/) for more and stay tuned.
## Contributing
Contributions welcome! If you find this useful, please ⭐ the repo — it helps others discover it.
## Star History
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## License
Apache License 2.0