--- title: "jiwer vs just-eval" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/jitsi-jiwer-vs-re-align-just-eval" tools: ["jitsi-jiwer", "re-align-just-eval"] --- # jiwer vs just-eval *GraphCanon updated Aug 8, 2026* ## Verdict Pick jiwer if a Python library for assessing speech-to-text systems with word error rate measures; pick just-eval if just-eval provides a straightforward GPT-based framework for evaluating LLMs across multiple dimensions with clear outputs. [jiwer](https://github.com/jitsi/jiwer) reports 917 GitHub stars, 107 forks, and 19 open issues, last pushed Apr 16, 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 [jiwer's repository](https://github.com/jitsi/jiwer) and [just-eval's repository](https://github.com/Re-Align/just-eval). | | [jiwer](/tools/jitsi-jiwer.md) | [just-eval](/tools/re-align-just-eval.md) | | --- | --- | --- | | Tagline | Evaluate speech-to-text systems with word error rate (WER) measures | A simple GPT-based evaluation tool for multi-aspect, interpretable assessment of LLMs. | | Stars | 917 | 90 | | Forks | 107 | 7 | | Open issues | 19 | 2 | | Language | Python | Python | | Adopt for | A Python library for assessing speech-to-text systems with word error rate measures. | 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._ | | [jiwer](/tools/jitsi-jiwer.md) | [just-eval](/tools/re-align-just-eval.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Dormant (18%) | | Days since push | 105d | 921d | | Open issues (now) | 19 | 2 | | Full report | [trust report](/tools/jitsi-jiwer/trust.md) | [trust report](/tools/re-align-just-eval/trust.md) | ## Shared compatibility - **Python**: [jiwer](/tools/jitsi-jiwer.md) - Python runtime; [just-eval](/tools/re-align-just-eval.md) - Python runtime ## Decision facts: jiwer - **Adopt for:** A Python library for assessing speech-to-text systems with word error rate measures. ## 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 jiwer if… - License: jiwer is Apache-2.0, just-eval is MIT. - Tags unique to jiwer: automatic-speech-recognition, evaluation-metrics, python3, speech-to-text. - For accurate speech recognition evaluation needing direct WER calculations ### Choose just-eval if… - License: just-eval is MIT, jiwer is Apache-2.0. - Tags unique to just-eval: evaluation, gpt4, llm, llm-eval. - When your team requires an in-depth yet interpretable evaluation of LLM performance, focusing on various aspects. ## When NOT to use jiwer - Avoid if your project requires only basic, non-word level performance indicators - Not suitable for evaluating text-to-speech systems, as it focuses exclusively on speech-to-text output assessment ## 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 jiwer and just-eval? jiwer: Evaluate speech-to-text systems with word error rate (WER) measures. 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 jiwer over just-eval? Choose jiwer over just-eval when License: jiwer is Apache-2.0, just-eval is MIT; Tags unique to jiwer: automatic-speech-recognition, evaluation-metrics, python3, speech-to-text; For accurate speech recognition evaluation needing direct WER calculations. ### When should I choose just-eval over jiwer? Choose just-eval over jiwer when License: just-eval is MIT, jiwer is Apache-2.0; Tags unique to just-eval: evaluation, gpt4, llm, llm-eval; When your team requires an in-depth yet interpretable evaluation of LLM performance, focusing on various aspects. ### When should I avoid jiwer? Avoid if your project requires only basic, non-word level performance indicators Not suitable for evaluating text-to-speech systems, as it focuses exclusively on speech-to-text output assessment ### 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 jiwer or just-eval more popular on GitHub? jiwer has more GitHub stars (917 vs 90). Stars measure visibility, not whether either tool fits your constraints. ### Are jiwer and just-eval open source? Yes - both are open-source projects on GitHub (jiwer: Apache-2.0, just-eval: MIT). ### Where can I find alternatives to jiwer or just-eval? GraphCanon lists graph-backed alternatives at [jiwer alternatives](/tools/jitsi-jiwer/alternatives) and [just-eval alternatives](/tools/re-align-just-eval/alternatives) ([jiwer markdown twin](/tools/jitsi-jiwer/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/jitsi-jiwer-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, jiwer or just-eval? jiwer: Slowing. 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 jiwer and just-eval? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [jiwer trust report](/tools/jitsi-jiwer/trust); [just-eval trust report](/tools/re-align-just-eval/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=jitsi-jiwer`](/api/graphcanon/graph?tool=jitsi-jiwer) - 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/_