Laguna XS 2.1 and Nano Banana 2 (Gemini 3.1 Flash Image) are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Laguna XS 2.1, from poolside, has a 262,144-token context window and is priced at $0.06/M tokens input, $0.12/M tokens output on OpenRouter.
Nano Banana 2 (Gemini 3.1 Flash Image), from Google, has a 131,072-token context window and is priced at $0.50/M tokens input, $3/M tokens output on OpenRouter.