Qwen3.8 Max (0902) and GLM 5.3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
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.
GLM 5.3, from Z.ai, has a 1,310,720-token context window and is priced at $1.15/M tokens input, $3.50/M tokens output on OpenRouter.