---
title: Tuned Tensor
sdk: static
pinned: false
---

## Tuned Tensor

**Behaviour control infrastructure for open-weight language models.**

Specify behaviour, fine-tune open-weight models, and use evaluation feedback to start the next run.

### Workflow

- **Specify behaviour:** capture system prompts, guidelines, constraints, examples, and a base model in a structured spec.
- **Fine-tune:** compile training data and tune supported open-weight models.
- **Evaluate:** score outputs, inspect failures, and catch regressions.
- **Iterate:** use run feedback to refine the spec and start the next tuning pass.

### Get started

```bash
npm i -g @tuned-tensor/cli
tt init
tt runs start <spec-id>
```

[Website](https://tunedtensor.com/) · [Docs](https://tunedtensor.com/docs) · [CLI](https://github.com/tunedtensor/tuned-tensor-cli) · [Agent skill](https://tunedtensor.com/skill.md)