OX Alpha, an unnamed large language model available through OpenRouter, identified itself as GLM made by Z.ai after a user supplied text resembling its extracted system prompt. The purported system prompt instructed the model to call itself “ox-alpha” and say it was developed by an undisclosed organization. When shown that instruction as a user message, the model said it would not adopt a false identity and stated that it was GLM from Z.ai. The identity claim came from the model itself after the prompt-injection test, rather than from Z.ai or OpenRouter. A gzip-based normalized compression distance (NCD) comparison also matched OX Alpha most frequently to GLM-5.3 in a reference corpus. The test compared 14 OX Alpha responses against 293 responses from GPT-5.5, Claude Opus 5, Gemini 3.7 Flash, Gemini 3.1 Pro Preview, and GLM-5.3, using a five-nearest-neighbor vote. GLM-5.3 received 7 of 14 matches, followed by Claude Opus 5 with 3, Gemini 3.7 Flash with 2, and GPT-5.5 and Gemini 3.1 Pro Preview with 1 each. GLM-5.3 also led at neighbor settings of 3, 5, 7, and 9. NCD measures how efficiently two texts compress together, with lower scores indicating more shared textual structure.

Stripe plans to acquire OpenRouter, an AI model marketplace and gateway that provides access to more than 400 models through one interface. The transaction remains subject to customary closing conditions and is expected to close in the coming weeks. OpenRouter said it will keep its name, product, mission, roadmap, and existing customer integrations unchanged after the deal closes. OpenRouter says it processes more than 10 trillion tokens per day for more than 10 million developers and companies, and that its inference volume has grown at least tenfold annually since its founding in early 2023. Its platform offers model discovery, provider choice, model-agnostic observability, cost management, and routing intended to optimize price, performance, and uptime. The company said routing decisions will continue to be based on users’ interests rather than the preferences of any model provider or parent company. OpenRouter said Stripe’s customer network, data on internet-business growth, global infrastructure experience, and fraud and abuse capabilities will help it expand faster. The company employs about 90 people and said it intends to grow while preserving the startup’s velocity, agility, efficiency, and talent density.

Stripe Inc. has agreed to acquire OpenRouter Inc. for over $7 billion. OpenRouter specializes in helping companies switch between different AI models, reflecting the growing demand for cost-effective AI solutions.

OpenRouter has secured $113 million in a Series B funding round, led by CapitalG with participation from several venture capital arms including NVentures, ServiceNow Ventures, MongoDB Ventures, Snowflake Ventures, Databricks Ventures, AMP PBC, and Pace Capital. Existing investors also contributed to this funding round.

Hy3 LLM ranks first in the OpenRouter Model Rankings, significantly outperforming other models. OpenRouter provides access to various LLMs through a single API and publishes user interaction data on its AI Model Rankings page.