Claude 3.7 Sonnet vs GPT-6 Astra

A direct, empirical evaluation of Claude 3.7 Sonnet (Anthropic) against GPT-6 Astra (OpenAI).

Claude 3.7 Sonnet

Developed by Anthropic · Proprietary parameters

Enterprise software engineering, full-repo refactoring, and agentic workflows.

GPT-6 Astra

Developed by OpenAI · Proprietary Frontier parameters

Complex multi-step engineering, formal math proofs, autonomous computer/browser navigation, and CAD synthesis.