The AI Daily Brief · Monday, October 26, 2026
Moonshot released Kimi K3.1 Pro, an open-weights model that benchmarks closely with Western frontier models like Fable 5.1 and Anthropic's Opus 5.5, while priced at roughly two-thirds of its predecessor's cost. Artificial analysis noted that once its weights are released, it will be the highest-scoring open-weights model on their intelligence index.
“Once the waits for K31 Pro are released, it will be the highest-scoring open weights model, and the gap between the leading open weights and proprietary models on the intelligence index will narrow from 12 points to 3.”