ChatGPT is starting to transform answers into interactive charts and instant tools, and GPT-6 is being expanded to free users; Anthropic released Haiku 5.5, with input and output costs per word reduced by 90% compared to its predecessor for suggestions up to 100,000 words. On the investment front, Broadcom reportedly raised over $50 billion to support OpenAI's custom chips, and DeepSeek's new round of financing reportedly exceeded 80 billion yuan. The report also covers model pulse tracking of actual usage, small model capabilities, and evaluation of the new flagship model, supplementing the progress in mathematical research, multimodal retrieval, and open weights during the holiday period.
