Ministral 3 14B 2512 and Riverflow V2 Max Preview are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Ministral 3 14B 2512, from Mistral AI, has a 262,144-token context window and is priced at $0.20/M tokens input, $0.20/M tokens output on OpenRouter.
Riverflow V2 Max Preview, from Sourceful, has a 8,192-token context window and is priced by the provider serving it on OpenRouter.