Opus 5 Ranks Second in Mathematics and Long-Context Agents

Anthropic introduced Opus 5, its latest large language model. On public benchmark testing, the model did not claim any top positions in individual categories. Opus 5 secured second place in mathematical research and long-context agentic tasks. It ranks behind GPT-Sol in mathematics and Fable in long-context agents. Anthropic's positioning strategy emphasizes cost-effectiveness: Opus 5 delivers near-Fable-level intelligence at half the price.