Comparing Assistants: ChatGPT, Gemini, Copilot

Use this guide to quickly recognize strengths, limits, and best-fit scenarios for each assistant.

Strengths at a Glance

• ChatGPT: strong writing, structured reasoning, tool ecosystem via OpenAI.
• Gemini: good with Google ecosystem context and multimodal tasks.
• Copilot: integrated with Microsoft 365 for work content and graphs.

Common Limits

• Hallucinations: verify facts; ask for citations or steps.
• Context: long inputs may be truncated; focus on essentials.
• Policy: certain content (PII, medical, legal) may be restricted.

Choosing the Right Tool

• Google Docs/Drive context → try Gemini.
• Microsoft 365/Teams context → try Copilot.
• General writing, structure, and iteration → start with ChatGPT.