Anthropic releases next-generation large model, Claude Opus 4.5.

Anthropic released its new generation of large-scale model, Claude Opus 4.5, achieving a major breakthrough in programming capabilities. It became the first model to score over 80% in the SWE-Bench Verified real-world software engineering test and ranked first in seven out of eight programming languages. Core upgrades include a precise understanding of ambiguous requirements, autonomous bug localization capabilities, and an innovative "effort" parameter control system that significantly reduces token consumption while maintaining performance.