Kimi K2 is an advanced Mixture-of-Experts (MoE) Transformer model designed to excel in specialized real-world software engineering tasks, surpassing models like GPT-4.1 in benchmarks such as SWE-Bench Verified. With a unique architecture featuring 384 specialized experts, Kimi K2 dynamically routes input to the most relevant skills in real time, making it efficient and effective in long-range reasoning and autonomous tool-use scenarios. Its agentic capabilities allow for autonomous workflow orchestration, including API calls and code execution, making it suitable for building intelligent assistants that perform multi-step actions. Kimi K2 is available in two main variants, the Base and Instruct models, with the latter optimized for chatbots, coding assistants, and autonomous agents. Despite its impressive performance, deploying Kimi K2 requires experienced engineers to customize behaviors and integrate advanced tool chains, with Fireworks AI offering expertise in optimizing deployments for speed, quality, and cost.