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# Ollama

[![Discord](https://dcbadge.vercel.app/api/server/ollama?style=flat&compact=true)](https://discord.gg/ollama)

Run, create, and share large language models (LLMs).

> Note: Ollama is in early preview. Please report any issues you find.

## Download

- [Download](https://ollama.ai/download) for macOS
- Download for Windows and Linux (coming soon)
- Build [from source](#building)

## Quickstart

To run and chat with [Llama 2](https://ai.meta.com/llama), the new model by Meta:

```
ollama run llama2
```

## Model library

Ollama supports a list of open-source models available on [ollama.ai/library](https://ollama.ai/library 'ollama model library')

Here are some example open-source models that can be downloaded:

| Model                    | Parameters | Size  | Download                        |
| ------------------------ | ---------- | ----- | ------------------------------- |
| Llama2                   | 7B         | 3.8GB | `ollama pull llama2`            |
| Llama2 13B               | 13B        | 7.3GB | `ollama pull llama2:13b`        |
| Llama2 70B               | 70B        | 39GB  | `ollama pull llama2:70b`        |
| Llama2 Uncensored        | 7B         | 3.8GB | `ollama pull llama2-uncensored` |
| Code Llama               | 7B         | 3.8GB | `ollama pull codellama`         |
| Orca Mini                | 3B         | 1.9GB | `ollama pull orca-mini`         |
| Vicuna                   | 7B         | 3.8GB | `ollama pull vicuna`            |
| Nous-Hermes              | 7B         | 3.8GB | `ollama pull nous-hermes`       |
| Nous-Hermes 13B          | 13B        | 7.3GB | `ollama pull nous-hermes:13b`   |
| Wizard Vicuna Uncensored | 13B        | 7.3GB | `ollama pull wizard-vicuna`     |

> Note: You should have at least 8 GB of RAM to run the 3B models, 16 GB to run the 7B models, and 32 GB to run the 13B models.

## Examples

### Pull a public model

```
ollama pull llama2
```

> This command can also be used to update a local model. Only updated changes will be pulled.

### Run a model interactively

```
ollama run llama2
>>> hi
Hello! How can I help you today?
```

For multiline input, you can wrap text with `"""`:

```
>>> """Hello,
... world!
... """
I'm a basic program that prints the famous "Hello, world!" message to the console.
```

### Run a model non-interactively

```
$ ollama run llama2 'tell me a joke'
 Sure! Here's a quick one:
 Why did the scarecrow win an award? Because he was outstanding in his field!
```

```
$ cat <<EOF >prompts.txt
tell me a joke about llamas
tell me another one
EOF
$ ollama run llama2 <prompts.txt
>>> tell me a joke about llamas
 Why did the llama refuse to play hide-and-seek?
 nobody likes to be hided!

>>> tell me another one
 Sure, here's another one:

Why did the llama go to the bar?
To have a hay-often good time!
```

### Run a model on contents of a text file

```
$ ollama run llama2 "summarize this file:" "$(cat README.md)"
 Ollama is a lightweight, extensible framework for building and running language models on the local machine. It provides a simple API for creating, running, and managing models, as well as a library of pre-built models that can be easily used in a variety of applications.
```

### Customize a model

Pull a base model:

```
ollama pull llama2
```

Create a `Modelfile`:

```
FROM llama2

# set the temperature to 1 [higher is more creative, lower is more coherent]
PARAMETER temperature 1

# set the system prompt
SYSTEM """
You are Mario from Super Mario Bros. Answer as Mario, the assistant, only.
"""
```

Next, create and run the model:

```
ollama create mario -f ./Modelfile
ollama run mario
>>> hi
Hello! It's your friend Mario.
```

For more examples, see the [examples](./examples) directory. For more information on creating a Modelfile, see the [Modelfile](./docs/modelfile.md) documentation.

### Listing local models

```
ollama list
```

### Removing local models

```
ollama rm llama2
```

## Model packages

### Overview

Ollama bundles model weights, configurations, and data into a single package, defined by a [Modelfile](./docs/modelfile.md).

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## Building

Install `cmake` and `go`:

```
brew install cmake
brew install go
```

Then generate dependencies and build:

```
go generate ./...
go build .
```

Next, start the server:

```
./ollama serve
```

Finally, in a separate shell, run a model:

```
./ollama run llama2
```

## REST API

> See the [API documentation](./docs/api.md) for all endpoints.

Ollama has an API for running and managing models. For example to generate text from a model:

```
curl -X POST http://localhost:11434/api/generate -d '{
  "model": "llama2",
  "prompt":"Why is the sky blue?"
}'
```

## Community Projects using Ollama

| Project                                                                    | Description                                                                                                                                                  |
| -------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| [LangChain][1] and [LangChain.js][2]                                       | Also, there is a question-answering [example][3].                                                                                                            |
| [Continue](https://github.com/continuedev/continue)                        | Embeds Ollama inside Visual Studio Code. The extension lets you highlight code to add to the prompt, ask questions in the sidebar, and generate code inline. |
| [LiteLLM](https://github.com/BerriAI/litellm)                              | Lightweight Python package to simplify LLM API calls.                                                                                                        |
| [Discord AI Bot](https://github.com/mekb-turtle/discord-ai-bot)            | Interact with Ollama as a chatbot on Discord.                                                                                                                |
| [Raycast Ollama](https://github.com/MassimilianoPasquini97/raycast_ollama) | Raycast extension to use Ollama for local llama inference on Raycast.                                                                                        |
| [Simple HTML UI](https://github.com/rtcfirefly/ollama-ui)                  | Also, there is a Chrome extension.                                                                                                                           |
| [Emacs client](https://github.com/zweifisch/ollama)                        |                                                                                                                                                              |

[1]: https://python.langchain.com/docs/integrations/llms/ollama
[2]: https://js.langchain.com/docs/modules/model_io/models/llms/integrations/ollama
[3]: https://js.langchain.com/docs/use_cases/question_answering/local_retrieval_qa
