On January 27, 2026, Moonshot AI unveiled its latest - generation open - source model, Kimi K2.5. This innovative model delivered outstanding performances across multiple evaluation metrics, including HLE, BrowseComp, and DeepSearchQA, outshining other global open - source models. In an astonishingly short span of just one day post - launch, Kimi K2.5 catapulted to the pinnacle of several global rankings. On the highly authoritative LMarena benchmark, it stood only a step behind closed - source models such as Claude opus 4.5 and Genimi3 Pro, claiming the coveted top position among all open - source models. Moreover, on the well - known independent evaluation platform Artificial Analysis, it secured the 5th place overall, which was the highest rank achieved by any open - source model on this platform.
