# OpenAI makes two GPT-5.6 models cheaper, expanding usage in ChatGPT > Source: > Published: 2026-07-30 17:25:37+00:00 OpenAI is making two of its GPT-5.6 models more affordable today, and the benefits extend beyond API customers. OpenAI has three GPT-5.6 models: - Sol, OpenAI’s flagship model - Terra, their balanced model for everyday work - Luna, their fast and affordable model Starting today, the cost of the medium Terra model is dropping 20%, and the cost of the smaller Luna model is dropping 80% [compared to the initial prices ](https://9to5mac.com/2026/07/09/openai-announcing-the-next-chapter-for-chatgpt-today-watch-here/)set earlier this month. Here’s the new pricing for API customers: - $2 per million input tokens and $12 per million output tokens for Terra - $0.20 per million input tokens and $1.20 per million output tokens for Luna But what if you’re just a ChatGPT Work or Codex user? While OpenAI’s monthly subscription prices remain the same, the company says it’s also adjusting token usage for Terra and Luna models today as well. “These lower prices for Luna and Terra are also reflected in how usage is counted against paid subscriptions when using Codex and ChatGPT Work,” OpenAI says. In other words, you can now use GPT-5.6 Terra and Luna for more tasks before hitting limits. You can read the full announcement [here](https://openai.com/index/advancing-the-price-performance-frontier-with-gpt-5-6/) for more details. **Do more with your Apple products** [Apple AirTag 2 | Add Find My tracking to keys, bags, bikes, more](https://amzn.to/4vjNWN1) [AirPods 4 | Apple’s newest wireless headphones](https://amzn.to/43ndewV) [AirPods Pro 3 | Apple’s best wireless headphones](https://amzn.to/4ut3FYp) [Beats USB-A to USB-C Cable | The official CarPlay cable](https://amzn.to/4mpKs7K) *FTC: We use income earning auto affiliate links.* [More.](https://9to5mac.com/about/#affiliate) [our homepage](http://9to5mac.com/)for all the latest news, and follow 9to5Mac on [exclusive stories](https://9to5mac.com/feature/exclusive/), [reviews](https://9to5mac.com/guides/review/), [how-tos](https://9to5mac.com/guides/how-to/), and [subscribe to our YouTube channel](https://www.youtube.com/9to5mac)