Meta will allow rival AI chatbots on WhatsApp in Europe after EU antitrust scrutiny, though providers must pay message-based API fees.
OpenAI launches GPT-5.4, calling it its most capable and efficient AI model yet, with AI agents, computer control, improved reasoning, and a 1M-token context.
Agent skills shift AI agents toward procedural tasks with skill.md steps; progressive disclosure reduces context window bloat in real use.