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Beyond Fine-tuning: Solving DABstep's Hard Mode with Versioned Assets

Zion Gao
Zion Gao
Published on January 9, 2026
10 minute read
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Key Takeaways
  • OceanBase DataPilot tops the DABstep financial reasoning leaderboard — not with a bigger model, but by shifting from prompt engineering to asset engineering: versioned SOPs, validated code templates, and metric definitions managed like code, not disposable context.
  • A train-free GRPO mechanism drives iteration: the agent forks competing logic branches, benchmarks them against golden answers, and promotes winners to trunk — solving ambiguity, dirty-data crashes, and timeout failures without retraining.
  • The infrastructure requirement is ACID for agents: OceanBase's unified relational + vector + full-text engine ensures knowledge updates are atomic and context assembly is a single hybrid SQL query, eliminating the state-drift risk of stitched-together stacks.
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