README.md

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title: README
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🌐 About OpenDataArena

OpenDataArena (ODA) is an open research initiative devoted to evaluating, benchmarking, and creating high-value datasets for the post-training era of large language models (LLMs).
We believe data quality defines model capability — and that open, reproducible evaluation is key to accelerating progress in AI.

🚀 Our Mission

To make data evaluation scientific, transparent, and community-driven, while continuously producing high-value, openly available datasets that enhance model alignment and reasoning ability.

🔑 Key Features

• 🏆 Dataset Leaderboard — Leaderboard ranks the most valuable datasets across multiple domains, based on diverse benchmarks.
• 📊 Comprehensive Scoring System — Scoring tool measures dataset quality, diversity, and learning values using reproducible pipelines.
• 🧰 Open-Source Toolkit — OpenDataArena-Tool enables dataset evaluation, scoring with a standardized, community-driven workflow.
• 🌱 High-Value Data Generation — beyond evaluation, ODA continuously produces and shares new, top-quality datasets for fine-tuning and alignment research.

If you find our work helpful, please consider ⭐ starring and subscribing to support open, data-driven AI research. Learn more at opendataarena.github.io.