GPT-5.1 Chat and Qwen3 Embedding 8B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
GPT-5.1 Chat, from OpenAI, has a 128,000-token context window and is priced by the provider serving it on OpenRouter.
Qwen3 Embedding 8B, from Qwen, has a 32,768-token context window and is priced at $0.01/M tokens on OpenRouter.