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Microsoft trains Qwen3.8-27B on 187 tasks to improve agent repeatability

Microsoft and Hugging Face published an open-source training system on October 22 that rewards an AI agent for the database state it leaves behind, and fine-tuning Qwen3.8-27B with executable checks raised average success by 9.08 percentage points across a 507-task evaluation, according to Microsoft applied scientist Tuhin Kundu and collaborators. The experiment trained the model on 187 tasks, and the model solved at least one attempt on seven fewer tasks. Microsoft's results show stronger repeatability on its benchmark.

by read1 min views2 publishedOct 23, 2026
Microsoft trains Qwen3.8-27B on 187 tasks to improve agent repeatability
Image: Runtimewire (auto-discovered)

The Microsoft and Hugging Face experiment raised average success by 9.08 percentage points across 507 benchmark tasks, while the model solved at least one attempt on seven fewer tasks.

        By [Ryan Merket](https://runtimewire.com/author/ryan-merket)
        · Published 
        · Updated 

Primary source: [Hugging Face Newsroom](https://huggingface.co/blog/microsoft/thinkingbox-training)

Why it matters #

Executable checks connect agent training to the actual records business systems retain. Microsoft's results show stronger repeatability on its benchmark.

On October 22nd, Microsoft and Hugging Face published an open-source training system that rewards an AI agent for the database state it leaves behind. In the release results, Microsoft applied scientist Tuhin Kundu and collaborators report that fine-tuning Qwen3.8-27B with executable checks raised average success by 9.08 percentage points across a 507-task evaluation.…

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