---
title: "Neutrino-1 0.6B-Chat"
description: "A 596M-parameter conversational model that answered all 50 held-out fragment and factual prompts, preserved its identity on 8/8 probes, and exposed no chat-template text."
canonical: "https://www.fermionresearch.com/models/neutrino-0-6b-chat/"
source: "Fermion Research"
---

# Neutrino-1 0.6B-Chat

A 596M-parameter conversational model that answered all 50 held-out fragment and factual prompts, preserved its identity on 8/8 probes, and exposed no chat-template text.

## Overview

## Compact conversational model

A 596M-parameter conversational model that answered all 50 held-out fragment and factual prompts, preserved its identity on 8/8 probes, and exposed no chat-template text.

## Performance

## Measured conversation and stopping behavior.

The shipping model is graded through the same native binary and MLX pack users receive, including reply form, identity, leakage, looping, and termination.

## Install

## Run locally.

First run downloads and verifies the model. Later runs load from the local cache.

```text
$ pip install fermion-research
$ fermion chat --model fermionresearch/Neutrino-0.6B-Chat
```

Model download: 328 MB.

Compare all three Neutrino-1 models.

Source: [https://www.fermionresearch.com/models/neutrino-0-6b-chat/](https://www.fermionresearch.com/models/neutrino-0-6b-chat/)