Qwen 2.5 Max vs Claude Fable 5.1

A direct, empirical evaluation of Qwen 2.5 Max (Alibaba Cloud) against Claude Fable 5.1 (Anthropic).

Qwen 2.5 Max

Developed by Alibaba Cloud · Proprietary (~700B) parameters

Cross-lingual document extraction and structured structured output generation.

Claude Fable 5.1

Developed by Anthropic · Proprietary Frontier parameters

Full-repository software refactoring, agentic tool workflows, formal verification, and 1.5M-token needle retrieval.