Anarres is an open-source toolkit and research program for predicting how training environments shape model improvement. It qualifies task sources, measures the experience they produce under a starting policy, compares compatible candidates, and preserves the evidence behind each decision.

Equal post-training budgets can improve a model, do little, or make it worse. Anarres makes those differences measurable before an expensive training run.

Install

On macOS or Linux:

brew install anarres-organization/tap/anarres && anarres --version

The standalone installer is available when Homebrew is not:

curl --proto '=https' --tlsv1.2 -LsSf \
  https://github.com/anarres-organization/anarres/releases/latest/download/anarres-cli-installer.sh | sh
"${CARGO_HOME:-$HOME/.cargo}/bin/anarres" --version

Open a new terminal after the standalone installer updates PATH. If the shell still cannot find the command, run ~/.cargo/bin/anarres --version to confirm the installation and follow the PATH troubleshooting guide.

Windows, pinned-version, archive, checksum, and…