New Anthropic, OpenAI models make same promise: A little more for a lot less money

Anthropic released Opus 5.5, which improves coding performance and increases generation speed by 30% while reducing cache read costs by 60%. Simultaneously, OpenAI introduced GPT-6 Sol and Luna to prioritize efficiency and speed. Both companies are lowering prices to maintain competitiveness against open-weight models and enterprise-focused model routers.