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Record · mirothinkerAgentOpen sourceVerified Sep 18, 2026

MiroThinker

MiroThinker is a deep research agent optimized for complex research and prediction tasks. Our latest models, MiroThinker-1.7, achieves 74.0 and 75.3 on the BrowseComp and BrowseComp Zh, respectively.

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Best for

Long-chain deep-research and prediction tasks where an open-weight research model is preferred to a hosted one.

Avoid if

You need independently verified quality; the benchmark figures quoted for it are the project's own.

About MiroThinker

MiroThinker: A deep research agent optimized for research and prediction. It achieves a 88.2 on the challenging BrowseComp benchmark. See Quick Start.

Our new MiroThinker family represents a significant leap in building reliable agents for long-chain tasks. Engineered with enhanced post-training pipeline, our MiroThinker-1.7 family achieve SOTA performance in deep research tasks among open-source models.

MiroThinker-1.7 demonstrates strong general-research performance across a broad range of benchmarks, achieving 74.0%, 75.3%, 82.7% and 42.9% on BrowseComp, BrowseComp-ZH, GAIA-Val-165 and HLE-Text, respectively. MiroThinker-1.7 achieves SOTA performance on BrowseComp-ZH.

From the project's README

MiroThinker is an open-source project written primarily in Python, with 8.4k stars on GitHub. It was last updated in July 2026.

Install

uv sync
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