Ox Alpha and LongCat 2.0 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Ox Alpha, from Stealth, has a 1,048,576-token context window and is free to use on OpenRouter.
LongCat 2.0, from meituan, has a 1,048,756-token context window and is priced at $0.30/M tokens input, $1.20/M tokens output on OpenRouter.