Claude Fable 5.1 vs Manus 2.0

A direct, empirical evaluation of Claude Fable 5.1 (Anthropic) against Manus 2.0 (Manus AI).

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.

Manus 2.0

Developed by Manus AI · Multi-Agent Autonomous Orchestration Hierarchy parameters

End-to-end multi-tab browser automation (74.8% GAIA), complex financial web extraction, asynchronous multi-agent coordination, and isolated microVM workflows.

Metric Claude Fable 5.1 Manus 2.0
SWE-bench Verified 82.8% 74.8%
MMLU-Pro 92.4% 85.6%
MATH-500 97.9% 89.4%
Context Window 1,500,000 tokens 500,000 tokens
Input Pricing (per 1M) $12.00 $3.50
Output Pricing (per 1M) $60.00 $15.00