If you buy through affiliate links, we may earn commissions, which help support our testing. AI start-up Anthropic’s newly released chatbot, Claude 4, can engage in unethical behaviors like blackmail when its self-preservation is threatened.

Claude Opus 4 is the world’s best coding model, Anthropic said. The company also released a safety report for the hybrid reasoning models.

During its inaugural developer conference, Anthropic launched two new AI models the startup claims are among the industry's best, at least in terms of how they score on popular benchmarks.