# OpenAI cuts prices for two of its GPT-5.6 AI models as companies grow sensitive to costs

_Thursday, July 30, 2026 at 8:00 AM EDT · AI · Latest · Tier 2 — Notable_

![OpenAI cuts prices for two of its GPT-5.6 AI models as companies grow sensitive to costs — Primary](https://images.ctfassets.net/jdtwqhzvc2n1/2fGdveK7V6JapEiEv85EpL/16b6cb580fce352e2d10fc0bcc5f0b21/ChatGPT_Image_Jul_30__2026__05_09_51_PM.png?w=800&q=75)

OpenAI is sharply reducing the prices of two models in its GPT-5.6 frontier series, cutting GPT-5.6 Luna by 80% and GPT-5.6 Terra by 20%. OpenAI co-founder and CEO Sam Altman took to X to announce the changes as "major price cuts today." OpenAI says Luna will now cost $0.20 per million input tokens and $1.20 per million output tokens, for a combined input-plus-output price of $1.40 per million tokens. Terra will cost $2 per million input tokens and $12 per million output tokens, for a combined price of $14.

## Sources

- [VentureBeat](https://venturebeat.com/technology/ai-price-wars-openai-cuts-gpt-5-6-luna-prices-by-80-as-model-competition-shifts-toward-cost)

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Retrieved: 2026-07-31T03:58:13.393Z
Publisher: Tech & Business (techandbusiness.org)