Laguna XS 2.1 and Nemotron 3 Ultra 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.
Nemotron 3 Ultra, from Nvidia, has a 512,288-token context window and is priced at $0.50/M tokens input, $2.20/M tokens output on OpenRouter.