{"id":238453,"date":"2026-06-29T02:47:00","date_gmt":"2026-06-29T06:47:00","guid":{"rendered":"https:\/\/testing.news-you-need.com\/index.php\/2026\/06\/29\/openai-renews-its-challenge-to-anthropic-sol-terra-and-luna-the-new-gpt-5-6-models-for-coding-and-cybersecurity-are-here\/"},"modified":"2026-06-29T04:35:10","modified_gmt":"2026-06-29T08:35:10","slug":"openai-renews-its-challenge-to-anthropic-sol-terra-and-luna-the-new-gpt-5-6-models-for-coding-and-cybersecurity-are-here","status":"publish","type":"post","link":"https:\/\/testing.news-you-need.com\/index.php\/2026\/06\/29\/openai-renews-its-challenge-to-anthropic-sol-terra-and-luna-the-new-gpt-5-6-models-for-coding-and-cybersecurity-are-here\/","title":{"rendered":"OpenAI renews its challenge to Anthropic: Sol, Terra and Luna \u2013 the new GPT-5.6 models for coding and cybersecurity \u2013 are here"},"content":{"rendered":"<p><a href=\"https:\/\/en.ilsole24ore.com\/art\/openai-renews-its-challenge-to-anthropic-new-gpt-56-models-code-and-cybersecurity-arrive-on-earth-and-the-moon-AIwEcPvD\">OpenAI renews its challenge to Anthropic: Sol, Terra and Luna \u2013 the new GPT-5.6 models for coding and cybersecurity \u2013 are here<\/a><\/p>\n<p><a href=\"https:\/\/en.ilsole24ore.com\/art\/openai-renews-its-challenge-to-anthropic-new-gpt-56-models-code-and-cybersecurity-arrive-on-earth-and-the-moon-AIwEcPvD\">https:\/\/en.ilsole24ore.com\/art\/openai-renews-its-challenge-to-anthropic-new-gpt-56-models-code-and-cybersecurity-arrive-on-earth-and-the-moon-AIwEcPvD<\/a><\/p>\n<p>Publish Date: <a href=\"publish_date]\">2026-06-29 02:47:00<\/a><\/p>\n<p>Source Domain: <a href=\"en.ilsole24ore.com\">en.ilsole24ore.com<\/a><\/p>\n<p>Author: <a href=\"\"><\/a><\/p>\n<p> Using an unordered list, summarize the following article with between 4 and 8 key points. They are called Sol, Terra and Luna, and are the three versions of GPT-5.6 released in preview to \u2018a select group of trusted partners and organisations\u2019 by OpenAI. And, at least the first of these, reignites the rivalry with Anthropic and its flagship model, Claude Mythos \u2013 which is also not available to the general public.Luna is described as a balance between performance and cost; Terra is comparable to ChatGPT-5.5 but at half the cost; Sol is described in the press release announcing its launch as a \u2018next-generation model\u2019. This press release is nothing more than a benchmark comparison between OpenAI\u2019s LLMs and those of Anthropic.Meanwhile, in terms of performance: Sol\u2019s success rate in writing code, as assessed by Terminal-Bench \u2013 which is now one of the most widely used tools for comparing AI models \u2013 stands at 88.8 per cent and rises to 91.9 per cent when the new \u2018Ultra\u2019 reasoning mode is selected. In practice, this is a mode of operation in which an agent coordinates the activities of various sub-agents to achieve the ultimate goal. And what about Claude Mythos 5? It stops at 88 per cent.That\u2019s not all: GPT-5.6 Terra matches the performance of Claude Fable 5, with a code-writing accuracy rate of 84.3 per cent. Meanwhile, Luna achieves 82.5 per cent, surpassing the 78.9 per cent achieved by Claude Opus 4.8, Anthropic\u2019s most powerful model currently available.Furthermore, when it comes to cybersecurity, Sol achieves the same results as Mythos whilst using only a third of the tokens. This result was measured using ExploitGym, a benchmarking tool developed by OpenAI itself in collaboration with researchers at the University of Berkeley.<br \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>OpenAI renews its challenge to Anthropic: Sol, Terra and Luna \u2013 the new GPT-5.6 models&#8230;<\/p>\n","protected":false},"author":1,"featured_media":238454,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/i2.res.24o.it\/images2010\/S24\/Documenti\/2026\/06\/30\/Immagini\/Ritagli\/download%20(8)-U60684414814Kct-1440x752@IlSole24Ore-Web.jpg?r=1170x507","fifu_image_alt":"","footnotes":""},"categories":[15],"tags":[26,24],"class_list":["post-238453","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity","tag-ai","tag-cybersecurity"],"_links":{"self":[{"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/238453"}],"collection":[{"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=238453"}],"version-history":[{"count":1,"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/238453\/revisions"}],"predecessor-version":[{"id":238455,"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/238453\/revisions\/238455"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/238454"}],"wp:attachment":[{"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=238453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=238453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/testing.news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=238453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}