Claude Fable 5 vs GLM 5.2: side-by-side summary

Claude Fable 5 and GLM 5.2 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Fable 5, 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 5.2, from Z.ai, has a 1,048,576-token context window and is priced at $0.50/M tokens input, $3.15/M tokens output on OpenRouter.

Context window

• Claude Fable 5: 1,000,000 tokens
• GLM 5.2: 1,048,576 tokens

Price

• Claude Fable 5: $10/M tokens input, $50/M tokens output
• GLM 5.2: $0.50/M tokens input, $3.15/M tokens output

Provided by

• Claude Fable 5: Anthropic
• GLM 5.2: Z.ai

• Claude Fable 5 model details, providers and pricing
• GLM 5.2 model details, providers and pricing