Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Run Claude Sonnet 4 with API| openrouter.ai
Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.| www.anthropic.com
Modern AI rewards being very weird.| minimaxir.com