I have tested the major AI models for content creation across 50+ tasks. Here is the breakdown:

GPT-4: Best for structured outputs and following complex instructions. Excels at code generation and technical writing. Sometimes too verbose.

Claude: Best for nuanced reasoning and long-form content. Handles context windows better than competitors. More conservative with factual claims.

Gemini: Best for multimodal tasks and real-time information. Integration with Google services is seamless. Still catching up on reasoning depth.

My workflow: Use Claude for drafting, GPT-4 for structure and code, Gemini for research and fact-checking. No single model wins everything.