ERNIE 4.5 21B A3B Thinking and Mistral Small Creative are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
ERNIE 4.5 21B A3B Thinking, from baidu, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.
Mistral Small Creative, from Mistral AI, has a 32,768-token context window and is priced by the provider serving it on OpenRouter.