Anthropic has launched Claude 4, the latest iteration of its AI assistant, featuring what the company calls Constitutional AI 2.0. The model demonstrates significant improvements in mathematical reasoning, code generation, and nuanced instruction following while maintaining the safety-focused design philosophy that distinguishes Anthropic's approach.
Independent evaluations show Claude 4 matching or exceeding competitor models on tasks requiring multi-step logical reasoning and long-form analysis. The model also achieved the highest scores on newly developed safety benchmarks that test for harmful outputs, bias propagation, and resistance to adversarial prompting techniques.