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Get up and running with Llama 2 and other large language models locally

Ollama

Get up and running with large language models locally.

macOS

Download

Windows

Coming soon! For now, you can install Ollama on Windows via WSL2.

Linux & WSL2

curl https://ollama.ai/install.sh | sh

Manual install instructions

Docker

The official Ollama Docker image ollama/ollama is available on Docker Hub.

Quickstart

To run and chat with Llama 2:

ollama run llama2

Model library

Ollama supports a list of open-source models available on ollama.ai/library

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

Model	Parameters	Size	Download
Llama 2	7B	3.8GB	ollama run llama2
Mistral	7B	4.1GB	ollama run mistral
Phi-2	2.7B	1.7GB	ollama run phi
Neural Chat	7B	4.1GB	ollama run neural-chat
Starling	7B	4.1GB	ollama run starling-lm
Code Llama	7B	3.8GB	ollama run codellama
Llama 2 Uncensored	7B	3.8GB	ollama run llama2-uncensored
Llama 2 13B	13B	7.3GB	ollama run llama2:13b
Llama 2 70B	70B	39GB	ollama run llama2:70b
Orca Mini	3B	1.9GB	ollama run orca-mini
Vicuna	7B	3.8GB	ollama run vicuna
LLaVA	7B	4.5GB	ollama run llava

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.

Customize your own model

Import from GGUF

Ollama supports importing GGUF models in the Modelfile:

1. Create a file named Modelfile, with a FROM instruction with the local filepath to the model you want to import.

   FROM ./vicuna-33b.Q4_0.gguf
   

2. Create the model in Ollama

   ollama create example -f Modelfile
   

3. Run the model

   ollama run example
   

Import from PyTorch or Safetensors

See the guide on importing models for more information.

Customize a prompt

Models from the Ollama library can be customized with a prompt. For example, to customize the llama2 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 message
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 directory. For more information on working with a Modelfile, see the Modelfile documentation.

CLI Reference

Create a model

ollama create is used to create a model from a Modelfile.

Pull a model

ollama pull llama2

This command can also be used to update a local model. Only the diff will be pulled.

Remove a model

ollama rm llama2

Copy a model

ollama cp llama2 my-llama2

Multiline input

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.

Multimodal models

>>> What's in this image? /Users/jmorgan/Desktop/smile.png
The image features a yellow smiley face, which is likely the central focus of the picture.

Pass in prompt as arguments

$ 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.

List models on your computer

ollama list

Start Ollama

ollama serve is used when you want to start ollama without running the desktop application.

Building

Install cmake and go:

brew install cmake 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

Ollama has a REST API for running and managing models.

Generate a response

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

Chat with a model

curl http://localhost:11434/api/chat -d '{
  "model": "mistral",
  "messages": [
    { "role": "user", "content": "why is the sky blue?" }
  ]
}'

See the API documentation for all endpoints.

Community Integrations

Web & Desktop

• Bionic GPT
• HTML UI
• Chatbot UI
• Typescript UI
• Minimalistic React UI for Ollama Models
• Web UI
• Ollamac
• big-AGI
• Cheshire Cat assistant framework
• Amica
• chatd

Terminal

• oterm
• Ellama Emacs client
• Emacs client
• gen.nvim
• ollama.nvim
• ogpt.nvim
• gptel Emacs client
• Oatmeal
• cmdh

Database

• MindsDB

Package managers

• Pacman

Libraries

• LangChain and LangChain.js with example
• LangChainGo with example
• LlamaIndex
• LiteLLM
• OllamaSharp for .NET
• Ollama-rs for Rust
• Ollama4j for Java
• ModelFusion Typescript Library
• OllamaKit for Swift
• Ollama for Dart
• Ollama for Laravel
• LangChainDart

Mobile

• Enchanted
• Maid

Extensions & Plugins

• Raycast extension
• Discollama (Discord bot inside the Ollama discord channel)
• Continue
• Obsidian Ollama plugin
• Logseq Ollama plugin
• Dagger Chatbot
• Discord AI Bot
• Ollama Telegram Bot
• Hass Ollama Conversation
• Rivet plugin
• Llama Coder (Copilot alternative using Ollama)
• Obsidian BMO Chatbot plugin