GPT-6 Astra and Qwen3.8 Max (0902) are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
GPT-6 Astra, from OpenAI, has a 1,050,000-token context window and is priced at $10/M tokens input, $50/M tokens output on OpenRouter.
Qwen3.8 Max (0902), from Qwen, has a 1,000,000-token context window and is priced at $2/M tokens input, $6/M tokens output on OpenRouter.