Opus 45
Opus 45 is a frontier-class large language model developed by Anthropic. It is part of Anthropic’s Opus model line, which represents the company’s advanced offerings in the competitive landscape of state-of-the-art language models.
Competitive Context
Opus 45 operates alongside other frontier models in the market, including Qwen 3.6 Plus and Gemini 3. 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.