Llama 4 Maverick and Cydonia 24B V4.1 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Llama 4 Maverick, from Meta Llama, has a 1,048,576-token context window and is priced at $0.20/M tokens input, $0.696/M tokens output on OpenRouter.
Cydonia 24B V4.1, from Drummer, has a 131,072-token context window and is priced at $0.30/M tokens input, $0.50/M tokens output on OpenRouter.