Gemini 2.5 Flash and Qwen3 Coder Plus are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Gemini 2.5 Flash, from Google, has a 1,048,576-token context window and is priced at $0.30/M tokens input, $2.50/M tokens output on OpenRouter.
Qwen3 Coder Plus, from Qwen, has a 1,000,000-token context window and is priced at $0.65/M tokens input, $3.25/M tokens output on OpenRouter.