Compare GLM 5.2 from Z.ai and Claude Fable 5 from Anthropic on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
GLM 5.2 and Claude Fable 5 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
GLM 5.2, from Z.ai, has a 1,048,576-token context window and is priced at $0.4886/M tokens input, $1.536/M tokens output on OpenRouter.
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.