cd /news/artificial-intelligence/openai-makes-two-gpt-5-6-models-chea… · home topics artificial-intelligence article
[ARTICLE · art-80705] src=9to5mac.com ↗ pub= topic=artificial-intelligence verified=true sentiment=↑ positive

OpenAI makes two GPT-5.6 models cheaper, expanding usage in ChatGPT

OpenAI is cutting prices on two of its GPT-5.6 models, reducing the cost of the Terra model by 20% and the Luna model by 80% for API customers, with new rates of $2 per million input tokens and $12 per million output tokens for Terra, and $0.20 per million input tokens and $1.20 per million output tokens for Luna. The company says the lower prices also apply to usage counted against paid subscriptions for ChatGPT Work and Codex, allowing users to perform more tasks before hitting limits.

read1 min views1 publishedJul 30, 2026
OpenAI makes two GPT-5.6 models cheaper, expanding usage in ChatGPT
Image: 9To5Mac (auto-discovered)

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 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 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)
── more in #artificial-intelligence 4 stories · sorted by recency
── more on @openai 3 stories trending now
sponsored brought to you by zahid.host 4,200+ EU-deployed projects
reading about agents? ship yours in a single git push.

Run your AI side-project on zahid.host

EU-based hosting, git-push deploys, automatic HTTPS, no cold starts. Free tier with a custom domain — perfect for shipping the agent you just read about.

$git push zahid main
Live at https://your-agent.zahid.host
Get free account → Pricing
from €0/mo · no card required
LIVE [news/openai-makes-two-gpt…] indexed:0 read:1min 2026-07-30 ·