Ling 3.0 Tiny and Mistral Small 4 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Ling 3.0 Tiny, from inclusionai, has a 262,144-token context window and is priced by the provider serving it on OpenRouter.
Mistral Small 4, from Mistral AI, has a 262,144-token context window and is priced at $0.15/M tokens input, $0.60/M tokens output on OpenRouter.