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JetBrains 发布 Mellum2.1：面向智能体编程工作流的开源代码模型
作者（Nikita Pavlichenko）宣布发布 Mellum2.1，称其为 6 月开源的 Mellum2 的重大更新，通过扩大 RL 后训练规模以支持智能体编程（agentic coding）工作流。作者表示该模型在与其速度相比的情况下取得智能体编程基准的最高分数，并已在 Hugging Face 和 GGUF 两种格式下开放权重，MTP 支持将在随后几天推出。
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RT Nikita Pavlichenko Today we're releasing Mellum2.1: a major update to the Mellum2 that we open-sourced in June. This release is the result of a significant scaling of our RL post-training to enable agentic coding workflows. Mellum2.1 achieves top scores on the agentic coding benchmarks relative to its speed. We're releasing the weights in both HF and GGUF formats, and MTP support is coming in the following days. 🤗 collection: https://huggingface.co/collections/JetBrains/mellum21 Blog post: https://blog.jetbrains.com/ai/2026/10/mellum2-1-gets-to-work-a-fast-open-model-for-coding-agents/