Cogito V2 Preview Llama 109B and Mercury are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Cogito V2 Preview Llama 109B, from deepcogito, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.
Mercury, from inception, has a 128,000-token context window and is priced by the provider serving it on OpenRouter.