Introducing Kimi K3.1 Pro on Amazon Bedrock

Kimi K3.1 Pro Highspeed from Moonshot AI is now available on Amazon Bedrock. Part of Moonshot AI’s new K3.1 series, it’s a post-trained version of Kimi K3 with the same 3T-class open-weight architecture and 1-million-token context window, trained with substantially more post-training compute. According to Moonshot AI, that extra training targets long-horizon agentic work and fewer factual errors. It also improves professional tasks such as financial modeling and office documents, and coding for game engines, 3D scenes, and computer-aided design (CAD) scripts. Kimi K3.1 Pro Highspeed generates output tokens at a higher rate and Moonshot AI reports 2–3 times the speed of Kimi K3.1 Pro. Kimi K3.1 Pro Highspeed uses the same endpoint,…