--- title: "olmo-eval vs just-eval" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/allenai-olmo-eval-vs-re-align-just-eval" tools: ["allenai-olmo-eval", "re-align-just-eval"] --- # olmo-eval vs just-eval *GraphCanon updated Aug 8, 2026* ## Verdict Pick olmo-eval if olmo-eval is an evaluation framework for large language models, using uv for reproducible builds. It focuses on modular task implementations and integrates with various datasets via defined tasks; pick just-eval if just-eval provides a straightforward GPT-based framework for evaluating LLMs across multiple dimensions with clear outputs. [olmo-eval](https://github.com/allenai/olmo-eval) reports 65 GitHub stars, 14 forks, and 38 open issues, last pushed Aug 6, 2026. [just-eval](https://allenai.github.io/re-align/) has 90 stars, 7 forks, and 2 open issues, last pushed Jan 29, 2024. Figures are from public GitHub metadata via [olmo-eval's repository](https://github.com/allenai/olmo-eval) and [just-eval's repository](https://github.com/Re-Align/just-eval). | | [olmo-eval](/tools/allenai-olmo-eval.md) | [just-eval](/tools/re-align-just-eval.md) | | --- | --- | --- | | Tagline | Olmo Evaluation Framework for LLM Tasks | A simple GPT-based evaluation tool for multi-aspect, interpretable assessment of LLMs. | | Stars | 65 | 90 | | Forks | 14 | 7 | | Open issues | 38 | 2 | | Language | Python | Python | | Adopt for | Olmo-eval is an evaluation framework for large language models, using uv for reproducible builds. It focuses on modular task implementations and integrates with various datasets via defined tasks. | just-eval provides a straightforward GPT-based framework for evaluating LLMs across multiple dimensions with clear outputs. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | MIT | | Categories | Evaluation & Observability | Evaluation & Observability | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [olmo-eval](/tools/allenai-olmo-eval.md) | [just-eval](/tools/re-align-just-eval.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Dormant (18%) | | Days since push | 0d | 921d | | Open issues (now) | 38 | 2 | | Full report | [trust report](/tools/allenai-olmo-eval/trust.md) | [trust report](/tools/re-align-just-eval/trust.md) | ## Shared compatibility - **Python**: [olmo-eval](/tools/allenai-olmo-eval.md) - Python runtime; [just-eval](/tools/re-align-just-eval.md) - Python runtime ## Decision facts: olmo-eval - **Adopt for:** Olmo-eval is an evaluation framework for large language models, using uv for reproducible builds. It focuses on modular task implementations and integrates with various datasets via defined tasks. ## Decision facts: just-eval - **Adopt for:** just-eval provides a straightforward GPT-based framework for evaluating LLMs across multiple dimensions with clear outputs. ## Choose when ### Choose olmo-eval if… - License: olmo-eval is Apache-2.0, just-eval is MIT. - Tags unique to olmo-eval: datasets, python, tasks, uv. - olmo-eval ships Docker support for self-hosted deployment. - When you need a flexible evaluation setup that works with a variety of LLMs and datasets. ### Choose just-eval if… - License: just-eval is MIT, olmo-eval is Apache-2.0. - Tags unique to just-eval: gpt4, llm-eval, llm-evaluation, llm-evaluation-toolkit. - When your team requires an in-depth yet interpretable evaluation of LLM performance, focusing on various aspects. ## When NOT to use olmo-eval - When you require a simpler setup that doesn't need the reproducibility constraints of uv builds. - If your project already has an established evaluation toolchain and does not benefit from introducing a new framework for manageability reasons. ## When NOT to use just-eval - Avoid if direct integration with competing API services is needed as just-eval focuses solely on OpenAI API key configuration. - Not suitable when your project demands a custom evaluation framework that extends beyond simple GPT-based assessments. ## Common questions ### What is the difference between olmo-eval and just-eval? olmo-eval: Olmo Evaluation Framework for LLM Tasks. just-eval: A simple GPT-based evaluation tool for multi-aspect, interpretable assessment of LLMs.. See the comparison table for live GitHub stats and shared categories. ### When should I choose olmo-eval over just-eval? Choose olmo-eval over just-eval when License: olmo-eval is Apache-2.0, just-eval is MIT; Tags unique to olmo-eval: datasets, python, tasks, uv; olmo-eval ships Docker support for self-hosted deployment; When you need a flexible evaluation setup that works with a variety of LLMs and datasets. ### When should I choose just-eval over olmo-eval? Choose just-eval over olmo-eval when License: just-eval is MIT, olmo-eval is Apache-2.0; Tags unique to just-eval: gpt4, llm-eval, llm-evaluation, llm-evaluation-toolkit; When your team requires an in-depth yet interpretable evaluation of LLM performance, focusing on various aspects. ### When should I avoid olmo-eval? When you require a simpler setup that doesn't need the reproducibility constraints of uv builds. If your project already has an established evaluation toolchain and does not benefit from introducing a new framework for manageability reasons. ### When should I avoid just-eval? Avoid if direct integration with competing API services is needed as just-eval focuses solely on OpenAI API key configuration. Not suitable when your project demands a custom evaluation framework that extends beyond simple GPT-based assessments. ### Is olmo-eval or just-eval more popular on GitHub? just-eval has more GitHub stars (90 vs 65). Stars measure visibility, not whether either tool fits your constraints. ### Are olmo-eval and just-eval open source? Yes - both are open-source projects on GitHub (olmo-eval: Apache-2.0, just-eval: MIT). ### Where can I find alternatives to olmo-eval or just-eval? GraphCanon lists graph-backed alternatives at [olmo-eval alternatives](/tools/allenai-olmo-eval/alternatives) and [just-eval alternatives](/tools/re-align-just-eval/alternatives) ([olmo-eval markdown twin](/tools/allenai-olmo-eval/alternatives.md), [just-eval markdown twin](/tools/re-align-just-eval/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/allenai-olmo-eval-vs-re-align-just-eval.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, olmo-eval or just-eval? olmo-eval: Very active. just-eval: Dormant. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for olmo-eval and just-eval? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [olmo-eval trust report](/tools/allenai-olmo-eval/trust); [just-eval trust report](/tools/re-align-just-eval/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=allenai-olmo-eval`](/api/graphcanon/graph?tool=allenai-olmo-eval) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_