Kimi k1.5, developed by MoonshotAI, is a multimodal language model that significantly enhances performance in complex reasoning tasks through reinforcement learning and long-context extension techniques. The model has achieved industry-leading results on several benchmark tests, surpassing GPT-4o and Claude Sonnet 3.5 in mathematical reasoning tasks such as AIME and MATH-500. Its primary advantages include an efficient training framework, strong multimodal reasoning capabilities, and support for long contexts. Kimi k1.5 is mainly aimed at application scenarios requiring complex reasoning and logical analysis, such as programming assistance, mathematical problem-solving, and code generation.