Gemini 3.7 Flash and Inkling Small are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Gemini 3.7 Flash, from Google, has a 1,048,576-token context window and is priced at $0.375/M tokens input, $1.875/M tokens output on OpenRouter.
Inkling Small, from thinkingmachines, has a 524,288-token context window and is priced at $0.45/M tokens input, $1.20/M tokens output on OpenRouter.