Overview
Claude Fable 5.1 vs GLM 5.3 Flash: side-by-side summary
Claude Fable 5.1 and GLM 5.3 Flash are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Fable 5.1, from Anthropic, has a 1,000,000-token context window and is priced at $10/M tokens input, $50/M tokens output on OpenRouter.
GLM 5.3 Flash, from Z.ai, has a 1,310,720-token context window and is priced at $0.075/M tokens input, $0.25/M tokens output on OpenRouter.
- Context window
- Claude Fable 5.1: 1,000,000 tokens
- GLM 5.3 Flash: 1,310,720 tokens
- Price
- Claude Fable 5.1: $10/M tokens input, $50/M tokens output
- GLM 5.3 Flash: $0.075/M tokens input, $0.25/M tokens output
- Provided by
- Claude Fable 5.1: Anthropic
- GLM 5.3 Flash: Z.ai