Particle.news
Download on the App Store

Moonshot AI Releases Open-Source Kimi K2 Thinking, a Tool-Using 'Thinking Agent'

Public model hubs now host the release for independent evaluation.

Overview

  • Trained under a model-as-agent approach, Kimi K2 Thinking natively interleaves reasoning with tool use.
  • Moonshot reports state-of-the-art results, including 44.9% on Humanity's Last Exam and 60.2% on OpenAI's BrowseComp, where the human average is 29.2%.
  • The system is designed for prolonged autonomy with up to 300 rounds of tool calls to support iterative search, browsing, and coding loops without human intervention.
  • IT Home highlights immediate availability, providing deployment links on Hugging Face and ModelScope for public access.
  • The developer cites broad gains across coding benchmarks such as SWE-Multilingual and SWE-bench validation, along with improvements in writing, research reasoning, and empathetic responses.