Overview
Grok 4.5 vs GLM 5.3 FlashX: side-by-side summary
Grok 4.5 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.
Grok 4.5, from SpaceXAI, has a 500,000-token context window and is priced at $2/M tokens input, $6/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
- Grok 4.5: 500,000 tokens
- GLM 5.3 FlashX: 1,048,576 tokens
- Price
- Grok 4.5: $2/M tokens input, $6/M tokens output
- GLM 5.3 FlashX: $0.37/M tokens input, $1.25/M tokens output
- Provided by
- Grok 4.5: SpaceXAI
- GLM 5.3 FlashX: Z.ai