{"id":125012,"date":"2026-07-30T23:35:14","date_gmt":"2026-07-30T23:35:14","guid":{"rendered":"https:\/\/www.europesays.com\/ai\/125012\/"},"modified":"2026-07-30T23:35:14","modified_gmt":"2026-07-30T23:35:14","slug":"openai-just-made-its-cheapest-ai-model-dramatically-cheaper","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ai\/125012\/","title":{"rendered":"OpenAI just made its cheapest AI model dramatically cheaper"},"content":{"rendered":"

\t\t\"ChatGPT<\/p>\n

\u24d8 Matheus Bertelli \/ Pexels<\/p>\n

<\/a>ChatGPT on a laptop<\/p>\n

OpenAI has cut pricing across its GPT-5.6 lineup and introduced a new Fast mode for the API. The changes affect Luna and Terra, OpenAI’s lower-cost tiers, and come alongside benchmark data comparing Luna’s price-performance against models from Google, Anthropic, and other competitors.<\/p>\n

OpenAI has cut API pricing across its GPT-5.6 lineup<\/a>, framing the move as the payoff from efficiency work the model itself helped drive. GPT-5.6 Luna, the fastest and most affordable tier, is now 80% cheaper, while GPT-5.6 Terra, the balanced model for everyday work, drops 20% in price. The changes took effect on July 30.<\/p>\n

Subscription prices and quota budgets for ChatGPT and Codex stay the same, but Terra and Luna usage now draws down fewer credits against those plans.\u00a0<\/p>\n

OpenAI also introduced Fast mode for the API, replacing the old Priority Processing tier. For GPT-5.6 Sol, Fast mode runs up to 2.5 times faster than Standard processing at double the price, with no change in output quality, and existing requests tagged “priority” carry over automatically.\u00a0 <\/p>\n

On the performance side, OpenAI claims Luna now matches models that were considered frontier-class a year ago, at roughly 6 cents on the dollar per task and close to nine times the speed. The company also benchmarked Luna directly against a rival: on the Agents’ Last Exam professional-work benchmark, Luna is said to outperform Claude Fable 5 at an estimated cost per task nearly 99% lower.<\/p>\n

\tGPT-5.6 Luna scores above 51 on Artificial Analysis’s v4.1 index at roughly $0.05 per task, matching or beating rivals that cost 5 to 10x more, like Claude Opus 5 Low and Gemini 3.6 Flash.<\/p>\n

OpenAI attributes the gains to work across three layers: model architecture, inference systems, and the agentic harness connecting models to tools. Notably, the company says GPT-5.6 Sol itself helped find these efficiencies, autonomously rewriting production kernels and running hundreds of experiments to improve token generation. The kernel optimization work cut end-to-end model-serving costs by 20%, while the experiments lifted token-generation efficiency by more than 15%.<\/p>\n

\t\"B\u00f9i<\/a>Giang B\u00f9i<\/a> – Tech Writer – 39 articles published on Notebookcheck since 2026<\/p>\n

Instead of sports, I spent my school years buried in researching about everything tech, looking into chips and specs instead of doing whatever normal kids did. I am now writing for NotebookCheck, hoping that research finally reaches more people than just me and a text file.<\/p>\n","protected":false},"excerpt":{"rendered":"\u24d8 Matheus Bertelli \/ Pexels ChatGPT on a laptop OpenAI has cut pricing across its GPT-5.6 lineup and…\n","protected":false},"author":2,"featured_media":125013,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[4077,24,53,8540,512,23677,580,182,2317,7975,62852,132,34352,23678,3887,62851,4114,52404,23676,4117,157,20073,1635,5061,3597,6843,735,6342,15891,46565,23675,23674,8344],"class_list":["post-125012","post","type-post","status-publish","format-standard","has-post-thumbnail","category-openai","tag-agents","tag-ai","tag-anthropic","tag-api","tag-automation","tag-benchmarks","tag-chatgpt","tag-claude","tag-codex","tag-efficiency","tag-fastmode","tag-google","tag-gpt-5-6","tag-graphics-card","tag-inference","tag-kernels","tag-laptop","tag-luna","tag-netbook","tag-notebook","tag-openai","tag-optimization","tag-performance","tag-pricing","tag-processor","tag-reports","tag-review","tag-reviews","tag-sol","tag-terra","tag-test","tag-tests","tag-tokens"],"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/posts\/125012","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/comments?post=125012"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/posts\/125012\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/media\/125013"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/media?parent=125012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/categories?post=125012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/tags?post=125012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}