OpenAI releases 2 new models minutes after Anthropic's launch

OpenAI has released two new AI models, GPT-6 Sol and GPT-6 Luna, as part of its GPT-6 generation. Sol is designed for complex tasks like coding, while Luna is more efficient for everyday work, OpenAI said. The launch came about 90 minutes after rival Anthropic unveiled Claude Opus 5.5, the first model in its new Claude 5.5 family.