Installation

Install Delta on macOS, Windows, or Linux. App installers or the Delta CLI.

App installers

File	OS	Notes
.dmg	macOS (Apple Silicon)	Disk image installer
.deb	Linux (Ubuntu / Debian)	Install with `sudo dpkg -i`
.AppImage	Linux (any distro)	Portable, no install needed
.exe	Windows	Standard installer

Get the latest builds from the download section. Sign in, then download your installer.

macOS setup (unsigned build)

Open the Apple Silicon .dmg from Downloads and drag Delta into Applications.
Try to open Delta. macOS will show a warning. Click Done or Cancel.
Open System Settings → Privacy & Security. Scroll down and click Open Anyway next to the message about Delta being blocked.
When macOS asks to confirm, click Open. Delta launches normally after this.

Or run this in Terminal to skip the steps above:

bash

sudo xattr -d com.apple.quarantine /Applications/Delta.app

Intel Mac builds are not bundled in this release. Apple Silicon Macs can run the app natively; contact support if you need an Intel build.

Linux: Debian / Ubuntu (.deb)

bash

cd ~/Downloads
sudo dpkg -i Delta_*_amd64.deb
sudo apt-get install -f   # fix missing dependencies if prompted

Launch Delta from your applications menu after installation.

Linux: AppImage (portable)

Make the file executable.

bash

chmod +x Delta_*_amd64.AppImage
./Delta_*_amd64.AppImage

Works on Fedora, Arch, and other distros without a package manager install step.

Windows setup

Run the Windows .exe installer from your Downloads folder.
Follow the installer prompts (64-bit Windows 10 or 11).
Open Delta from the Start menu when setup completes.

Direct file path after download: /installers/

Install Delta CLI

Prefer the terminal? Install the CLI with one command, then pull models and chat locally.

macOS / Linux

bash

curl -fsSL https://github.com/nile-agi/delta-release/releases/download/v1.0.18-rc.5/install.sh | DELTA_VERSION=v1.0.18-rc.5 sh

Windows (PowerShell)

bash

irm https://github.com/nile-agi/delta-release/releases/latest/download/install.ps1 | iex

Try Delta

bash

delta pull qwen2.5:0.5b   # download a small model (about 400 MB); run once
delta                    # chat in the terminal; it also prints a link to the web UI
delta -m qwen2.5:0.5b "Explain photosynthesis in one sentence"   # one answer in the terminal
delta --server           # web UI plus an OpenAI-compatible API on http://127.0.0.1:8081/v1
delta server start       # the same, in the background; then: delta server status | logs | stop

Command	What it does
delta --list-models	Models you have downloaded
delta --list-models --available	Models you can download (`delta pull <name>`)
delta remove <name>	Delete a downloaded model
delta --update	Update the CLI in place to the newest release
delta --help	Every option