"Anthropic released Claude Sonnet 4.5, its latest model, on Monday. The company positioned it as the world's best AI coding system and a leap forward in applied artificial intelligence. The upgrade arrives just four months after its predecessor, Sonnet 4, underscoring the startup's rapid product cadence in the generative AI arms race. Anthropic said Sonnet 4.5 delivers state-of-the-art results on SWE-Bench Verified, astandard for evaluating software engineering performance."
"The startup also pitched the new model's ability to generate practical business outcomes through autonomous computer use, cybersecurity capabilities, and the creation of production-ready applications and context-aware AI agents. Anthropic's revenue has surged this year, primarily driven by the coding functionalities of its models and a specific product called Claude Code. The startup pulled away from rivals in AI coding, and Sonnet 4.5 is designed to maintain this lead."
Anthropic released Claude Sonnet 4.5, positioning it as a leading AI coding system and claiming up to 30 hours of autonomous operation. The model reportedly achieves state-of-the-art results on SWE-Bench Verified and aims to improve code reliability, refactoring judgment, and production readiness. Anthropic emphasized capabilities for autonomous computer use, faster cybersecurity vulnerability detection and remediation, and creation of production-ready, context-aware AI agents. Claude Agent SDK targets developer tools for customized agents. Claude Code has driven significant revenue growth, exceeding $500 million run-rate with usage growing over 10× in three months. Sonnet 4.5 competes with Gemini, GPT-5, and Grok 4.
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