Overview
verifiers is our library for creating environments to train and evaluate LLMs.
verifiers is tightly integrated with the Environments Hub, as well as our training framework prime-rl and our Hosted Training platform.
Installation
We recommend installing the Prime CLI to interact with the environments.
# install uv
curl -LsSf https://astral.sh/uv/install.sh | sh
# install the prime CLI
uv tool install prime
Further reading
- The docs contain short, human-written guides and overviews about the architecture.
- The AGENTS.md and skills are for coding agents and go into more details.
Contributing
We welcome community contributions. We use issues to track bugs and feature requests. If you hit a bug, a pain point, or have an idea for a feature, please open an issue.
Contributions are welcome via PR. Please follow these guidelines:
- Install the pre-commit hooks so your code is formatted and type-checked.
- Keep your PR in "Draft" until it is ready for review.
- If your PR resolves an issue, link the issue in the PR description.
- Run the tests for the areas you touched.
Pre-commit hooks
uv run pre-commit install
Tests
Unit tests run one component in isolation, with no network, and mirror the verifiers/v1 layout. Integration tests run real evals: they need PRIME_API_KEY and skip without it.
uv run pytest tests/unit -n auto # unit
uv run pytest tests/integration -n 8 # integration
uv run pytest tests/integration/test_single_turn.py # one behavior
uv run pytest tests/integration -m "docker and codex" # one runtime and harness
Citation
Originally created by Will Brown (@willccbb).
@misc{brown_verifiers_2025,
author = {William Brown},
title = {{Verifiers}: Environments for LLM Reinforcement Learning},
howpublished = {\url{https://github.com/PrimeIntellect-ai/verifiers}},
year = {2025}
}
1 maintainer
Metadata
1 maintainer
Release files for verifiers 0.4.1
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| verifiers-0.4.1.tar.gz | 457.8 kB | With provenance | Details for verifiers-0.4.1.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| verifiers-0.4.1-py3-none-any.whl | Python 3 | none | any | Details for verifiers-0.4.1-py3-none-any.whl |
Total release size: 938.6 kB
Release files / verifiers-0.4.1.tar.gz
| Download URL | verifiers-0.4.1.tar.gz |
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| Tags | Source |
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SHA-256 checksum How to use checksums |
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| Size | 480.8 kB |
| Tags | Python 3 |
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SHA-256 checksum How to use checksums |
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