OpenAI Announces Cheaper GPT-6 Family Models

OpenAI on Tuesday announced GPT-6 Sol and GPT-6 Luna, which it describes as cheaper and faster models in the GPT-6 Astra family.

The company said that the new models show significant improvements compared to their predecessors, GPT-5.6 Sol and GPT-5.6 Luna, in areas like professional work, coding, computer use and accuracy.

Additionally, OpenAI said that it had been able to make optimizations in running these models which has allowed them to lower prices for customers; the new models are half of the price of their predecessors. Such price cuts could help to entice customers who are concerned by the costs of AI spending.

OpenAI said that the new models will be rolling out throughout Tuesday in ChatGPT Work and Codex for all Plus, Pro, Business, and Enterprise users, while Free and Go users would be able to access GPT-6 Luna in the ChatGPT desktop app. The company said that the models will not initially be available to users in the “chat” tab in ChatGPT.