{"id":58656,"date":"2026-09-26T20:59:19","date_gmt":"2026-09-26T12:59:19","guid":{"rendered":"https:\/\/www.1ai.net\/?p=58656"},"modified":"2026-09-26T20:59:19","modified_gmt":"2026-09-26T12:59:19","slug":"%e7%be%8e%e5%9b%a2%e4%b8%8a%e7%ba%bf-longcat-2-5-preview-%e6%a8%a1%e5%9e%8b%ef%bc%9a1-6t-%e5%8f%82%e6%95%b0%ef%bc%8c%e4%b8%bb%e6%89%93-ai-%e9%95%bf%e7%a8%8b%e4%bb%bb%e5%8a%a1%e4%b8%8e%e5%a4%9a","status":"publish","type":"post","link":"https:\/\/www.1ai.net\/en\/58656.html","title":{"rendered":"LongCat-2.5-Preview model: 1.6T parameters, main playing AI long-range tasks and multi-modular capabilities"},"content":{"rendered":"<p>September 26th.<a href=\"https:\/\/www.1ai.net\/en\/tag\/%e7%be%8e%e5%9b%a2\" title=\"[Sees articles with [American] labels]\" target=\"_blank\" >Meituan (Japanese company)<\/a>The LongCat API Open Platform came online on September 25th<a href=\"https:\/\/www.1ai.net\/en\/tag\/%e6%a8%a1%e5%9e%8b\" title=\"_Other Organiser\" target=\"_blank\" >Model<\/a> LongCat-2.5-Preview, main play on \"long-range missions\" and<a href=\"https:\/\/www.1ai.net\/en\/tag\/%e5%a4%9a%e6%a8%a1%e6%80%81\" title=\"[View articles tagged with [multimodal]]\" target=\"_blank\" >Multimodality<\/a>CAPABILITY AND THE SIMULTANEOUS OPENING OF API WITH WEB-END EXPERIENCE PORTALS\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-58657\" title=\"4f3d7ee5j00tlz2p90e2d000mtp\" src=\"https:\/\/www.1ai.net\/wp-content\/uploads\/2026\/09\/4f3d7ee5j00tlz2p900e2d000u000mtp.jpg\" alt=\"4f3d7ee5j00tlz2p90e2d000mtp\" width=\"1080\" height=\"821\" \/><\/p>\n<p>1AI ATTACH THE FOLLOWING OFFICIAL UPDATE LOG:<\/p>\n<p>The core features of LongCat-2.5-Preview are as follows:<\/p>\n<ul>\n<li><strong>Multimodular Understanding: Adding Photo Understanding<\/strong>, which can decipher the image content and support cross-model questions and answers, executive summaries and complex visual reasoning\u3002<\/li>\n<li><strong>Coding Capability<\/strong>: High profile on code generation, code understanding and automated programming tasks\u3002<\/li>\n<li><strong>Depth fit mainstream development environment like Claude Code<\/strong>: Efficient synergy with Claude Code, Hermes, OpenClaw, OpenCode, Kilo Code\u3002<\/li>\n<\/ul>\n<p>According to officially published information, the LongCat-2.5-Preview model continues the MoE (mixed expert) route, with a total parameter volume of approximately 1.6 trillion, and a reasoning activation parameter of about 48 billion each. The model supports a 1 million token context window and is suitable for processing documents, code libraries, logs and multiple rounds of complex tasks\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>On September 26th, the LongCat API Open Platform was launched on September 25th with a big new generation model LongCat-2.5-Preview, which plays \"long-range missions\" with multi-modular capabilities and opens the API and web-end experience portal simultaneously. 1AI Attach the following core features of the official update log: LongCat-2.5-Preview: Multi-modular Understanding: Adding Photo Understanding Capable of Parsing Image Content, Supporting Cross-modular Questions and Answers, Content Abstracts and Complex Visual Logs. Excellent Coding: Distinguished in code generation, code understanding and automated programming tasks. Depth fit mainstream development environment like Claude Code<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[146],"tags":[592,1489,4871],"collection":[],"class_list":["post-58656","post","type-post","status-publish","format-standard","hentry","category-news","tag-592","tag-1489","tag-4871"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.1ai.net\/en\/wp-json\/wp\/v2\/posts\/58656","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.1ai.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.1ai.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.1ai.net\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.1ai.net\/en\/wp-json\/wp\/v2\/comments?post=58656"}],"version-history":[{"count":0,"href":"https:\/\/www.1ai.net\/en\/wp-json\/wp\/v2\/posts\/58656\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.1ai.net\/en\/wp-json\/wp\/v2\/media?parent=58656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.1ai.net\/en\/wp-json\/wp\/v2\/categories?post=58656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.1ai.net\/en\/wp-json\/wp\/v2\/tags?post=58656"},{"taxonomy":"collection","embeddable":true,"href":"https:\/\/www.1ai.net\/en\/wp-json\/wp\/v2\/collection?post=58656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}