Claude Opus 4.5 全面上线，凭什么夺回 Agentic Coding 第一！

Core Insights - The article discusses the advancements in AI models, particularly focusing on Opus 4.5, which shows significant improvements in performance and efficiency compared to its predecessors and competitors [1][14][16] Group 1: Performance Comparison - Opus 4.5 outperforms Gemini 3 Pro in generating interactive applications, achieving a high level of completion and usability with minimal prompts [1][3] - In coding tests, Opus 4.5 demonstrates superior efficiency, using significantly fewer tokens while achieving comparable or better results than Sonnet 4.5 [6][7] - The model's ability to utilize tools has improved, allowing it to selectively call only relevant tools, which enhances efficiency and reduces token consumption [8][9] Group 2: Cost Efficiency - The pricing structure for token usage has been reduced to $5 per million input tokens and $25 per million output tokens, approximately one-third of previous costs, leading to a notable increase in cost-effectiveness [7][8] - Opus 4.5's advanced tool usage allows it to complete tasks at a much lower cost compared to Sonnet 4.5, with estimates showing a task cost of about $1 for Opus 4.5 versus $4 for Sonnet 4.5 [8][9] Group 3: Advanced Features - The introduction of the "effort" parameter allows users to customize the model's input intensity, balancing between time and cost efficiency [4][6] - The "infinite chat" feature enables continuous dialogue without hitting context limits, allowing for more seamless long-term projects and collaboration [11][12][13] - The enhanced computer use capability allows the AI to perform tasks directly on a computer interface, including zooming in on elements for precise interactions [9][10] Group 4: Market Positioning - Opus 4.5 is positioned as a tool for professional software developers and knowledge workers, emphasizing its utility in complex project management and collaborative development [16] - The model aims to redefine software production processes by acting as a collaborative developer rather than just a code completion tool [16]