North Mini Code and Claude Fable 5 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
North Mini Code, from Cohere, has a 256,000-token context window and is priced by the provider serving it on OpenRouter.
Claude Fable 5, from Anthropic, has a 1,000,000-token context window and is priced at $10/M tokens input, $50/M tokens output on OpenRouter.