OpenAI cuts GPT-5.6 Luna API price 80% and Terra 20%
OpenAI dropped GPT-5.6 Luna to $0.20 per million input tokens and $1.20 output — an 80% cut — and Terra 20% to $2 and $12, weeks after setting the original prices; flagship Sol is unchanged. The same cuts flow into how usage counts against ChatGPT Work and Codex subscriptions, so a fixed monthly plan now covers more calls, and the sub-dollar tier of frontier inference moves into batch and high-volume workloads that were priced out at launch.
Source: 9to5mac.com ↗
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
Why this matters
- → 80% Luna price cut moves frontier AI into cost-sensitive workloads.
- → Fixed ChatGPT Work/Codex subscriptions now cover 5–6x more API calls.
- → Price reset weeks after launch signals demand elasticity, not supply shortage.
Frontier AI gets budget-friendly