Opus 45
Opus 45 is a frontier-class large language model developed by Anthropic. It belongs to the Opus model line, which represents the company’s advanced offerings in the competitive landscape of state-of-the-art language models. As a frontier-class system, it is positioned among the most capable language models available, competing with similarly advanced offerings from other AI research organizations.
In the current market, Opus 45 operates alongside other leading models such as Qwen 3.6 Plus and Gemini 3. These comparisons highlight its standing within the broader ecosystem of high-performance AI systems, where it is evaluated against peers from major technology firms to assess its capabilities and relative performance.