Qwen3.6 35B A3B and Nova 2 Lite are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Qwen3.6 35B A3B, from Qwen, has a 262,144-token context window and is priced at $0.05/M tokens input, $0.70/M tokens output on OpenRouter.
Nova 2 Lite, from Amazon, has a 1,000,000-token context window and is priced at $0.30/M tokens input, $2.50/M tokens output on OpenRouter.