Someone Fine-Tuned OpenBMB’s MiniCPM5-1B on Claude Fable 5 Traces to Ship a 657MB Local Thinking Model

Summary

<p>A community developer fine-tuned OpenBMB's MiniCPM5-1B on Claude Fable 5 traces into a 1B model that runs fully local — a 657MB smallest build, 128K context, and visible reasoning. We verify every spec against the Hugging Face cards, separate what a fine-tune actually inherits from real capability, and flag the licensing question the model card leaves open.</p> <p>The post <a href="https://www.marktechpost.com/2026/07/19/someone-fine-tuned-openbmbs-minicpm5-1b-on-claude-fable-5-traces-to-ship-a-657mb-local-thinking-model/">Someone Fine-Tuned OpenBMB&#8217;s MiniCPM5-1B on Claude Fable 5 Traces to Ship a 657MB Local Thinking Model</a> appeared first on <a href="https://www.marktechpost.com">MarkTechPost</a>.</p>