Compare Claude Fable 5.1 from Anthropic and Qwen3.8 Max Prime from Qwen on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.


Claude Fable 5.1 and Qwen3.8 Max Prime 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.
Qwen3.8 Max Prime, from Qwen, has a 1,000,000-token context window and is priced at $4/M tokens input, $12/M tokens output on OpenRouter.