GitHub has launched a free tier for its Copilot AI code completion tool, offering developers up to 2,000 code completions and 50 chat messages per month. This new free tier includes access to both GPT-4o and Claude 3.5 Sonnet models, making advanced AI-assisted coding accessible to a broader audience. This initiative aims to expand the reach of AI capabilities to more developers and further encourage adoption of AI in software development workflows.