❯ Stealth Model Ox Alpha Debuts on OpenRouter, Free 1M-Context Trial for a Week

LAUNCHA model named Ox Alpha quietly surfaced on OpenRouter on August 20 — no lab byline, no release notes. The spec sheet is generous: a 1,048,576-token context window, tri-modal input covering text, image, and video, maximum output around 130,000 tokens, and completely free for a one-week preview window.

BENCH & ORIGINThe long context stood up to scrutiny — the needle-in-a-haystack test still hit at about 934,000 tokens, and the model completed 113 DeepSWE tasks with a 58.4% solve rate. Its origin, however, is entirely unresolved: the model page claims a daily serving capacity above 100 trillion tokens, and the most widely circulated community guess is a variant of Zhipu’s GLM-5.3, with a secondary theory pointing at Xiaomi’s MiMo team. Researcher teortaxesTex has posted multiple tweets pushing back on the “it was Cursor” claim — every attribution so far is speculation; none has been confirmed.

STAKESStealth launches are becoming a routine product-testing tactic: gather a round of real-workload feedback without brand baggage, then decide whose name goes on the listing. For developers, the near-term value is that one-week free million-context quota; for model vendors, OpenRouter’s blind-test reputation has become a distribution channel that bypasses launch events — a model’s first reviews now form anywhere but the vendor’s own blog.

▪ SIGNALAn anonymous listing, a free week, and the community running your evaluations — this playbook hands the power of the launch event to the users.