Overview
GPT-6 Astra Pro vs GLM 5.3 FlashX: side-by-side summary
GPT-6 Astra Pro and GLM 5.3 FlashX are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
GPT-6 Astra Pro, from OpenAI, has a 1,050,000-token context window and is priced at $10/M tokens input, $50/M tokens output on OpenRouter.
GLM 5.3 FlashX, from Z.ai, has a 1,048,576-token context window and is priced at $0.37/M tokens input, $1.25/M tokens output on OpenRouter.
- Context window
- GPT-6 Astra Pro: 1,050,000 tokens
- GLM 5.3 FlashX: 1,048,576 tokens
- Price
- GPT-6 Astra Pro: $10/M tokens input, $50/M tokens output
- GLM 5.3 FlashX: $0.37/M tokens input, $1.25/M tokens output
- Provided by
- GPT-6 Astra Pro: OpenAI
- GLM 5.3 FlashX: Z.ai