ChatGPT reaches 700 million weekly users as OpenAI prepares to launch GPT-5 with integrated reasoning capabilities in August 2025.

OpenAI launches ChatGPT Study Mode, transforming AI from an answer engine into a Socratic tutor that guides students through problems step-by-step rather than providing direct solutions.

Sparrow raises $35M Series B to scale AI-powered employee leave management platform that has grown 14x since 2021, serving 1,000+ companies and saving $200M in payroll costs.