Claude Sonnet 4.5被炸出来了，依旧最强编程，连续30小时自主运行写代码

Core Insights - The article discusses the release of Claude Sonnet 4.5, which has shown significant improvements over its predecessor, Claude Sonnet 4, in various performance metrics [2][8]. Performance Improvements - Claude Sonnet 4.5 achieved a score of 82.0% on the SWE-bench, an increase of 1.8 percentage points from Sonnet 4 [2]. - In the OSWorld test, it scored 60.2, nearly a 50% improvement over Sonnet 4 [7]. - The model can autonomously write code for up to 30 hours, producing over 11,000 lines of code, which is a significant increase from the previous model's 7-hour capability [3][5]. Benchmark Comparisons - Claude Sonnet 4.5 outperformed other models in various benchmarks, including: - Agentic coding: 77.2% [10] - Terminal-Bench: 50.0% [10] - High school math (AIME 2025): 100% accuracy with Python and 87% without tools [9][10]. - In specialized fields like finance, healthcare, and law, it showed over 60% win rates against baseline models [11]. Safety and Alignment - The model has undergone safety training to reduce undesirable behaviors such as flattery and deception, with a significant decrease in false positives from 0.15% to 0.02% [12][13]. - Claude Sonnet 4.5 has made notable advancements in defending against immediate injection attacks [12]. Pricing and Accessibility - The pricing for Claude Sonnet 4.5 remains the same as Sonnet 4, at $3 per million input tokens and $15 per million output tokens [24]. New Features and SDK - The Claude Agent SDK has been upgraded to support the development of general autonomous agents, enhancing its capabilities beyond just coding tasks [27]. - A new feature called "Imagine with Claude" allows users to generate software in real-time based on their requirements, facilitating the creation of functional prototypes without existing templates [32].