Best all-rounder — the safest choice if you only pay for one assistant
ChatGPT is the broadest assistant available and the sensible default for anyone buying exactly one. Its advantage is not any single capability but the absence of gaps: web search, file analysis, images, voice, code execution and custom agents all work well enough that you rarely need a second tool.
Best for companies already running Google Workspace
Gemini is the obvious answer for Google Workspace companies: it reads your Drive, Gmail and Docs natively with no integration work. As a standalone assistant it is competitive rather than leading, and its consumer plan bundling can be confusing.
Best for long-document analysis and writing that has to sound human
Claude is the assistant our testers reached for when the input was long or the output had to read well. Its large context window and comparatively restrained prose are the differentiators; image generation and consumer polish are where it trails.
