OpenAI and Anthropic release new AI models despite recent slowdown calls

Anthropic and OpenAI launched new AI models shortly after their CEOs advocated for a slowdown in development. Anthropic released Claude Opus 5.5, which offers performance comparable to Claude Fable 5.1 at a 40% lower operational cost. OpenAI introduced GPT-6 Sol and GPT-6 Luna, faster and more cost-effective models based on GPT-6 Astra. Both companies emphasized that these releases align with safety and alignment goals.