Nova Premier 1.0 and Text Embedding 3 Large are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Nova Premier 1.0, from Amazon, has a 1,000,000-token context window and is priced at $2.50/M tokens input, $12.50/M tokens output on OpenRouter.
Text Embedding 3 Large, from OpenAI, has a 8,192-token context window and is priced at $0.13/M tokens on OpenRouter.