GPT 5.6 Luna real cost

A user reported their experience with ChatGPT 5.6 Luna, noting a cost of $0.30 USD for 140 questions and answers over 14 days. They highlighted that 70% of the answers required cross-referencing data across multiple pages. This cost was observed to be three times less than that of GPT 5. The user concluded by asking for recommendations on the best entry model for a chatbot.