OpenAI improves prompt caching in GPT-6 Sol and Luna for better efficiency

OpenAI and Anthropic have simultaneously launched new model updates, with Claude Opus 5.5 and GPT-6 Sol and Luna announced within an hour of each other. OpenAI has specifically improved prompt caching in GPT-6 Sol and Luna to significantly lower operational costs and boost overall efficiency. These advancements are expected to impact AI deployment strategies. Both companies are prioritizing lower costs for their latest releases, marking a competitive shift in the current artificial intelligence landscape today.