Claude
Anthropic's assistant. The best writer of the three, and the strongest at working across a whole codebase rather than isolated snippets.
There are three assistants most people end up choosing between — and they are genuinely good at different things. We test them on real work and tell you which one to pick, in plain English.
Skip the feature lists. Pick the job you actually need done.
Dozens of assistants exist. In practice, almost everyone lands on one of these.
Anthropic's assistant. The best writer of the three, and the strongest at working across a whole codebase rather than isolated snippets.
OpenAI's assistant. Does the widest range of things — images, voice, data analysis — and has the biggest ecosystem behind it.
An AI search engine. Every answer arrives with citations you can click, which makes it the only one of the three you can properly fact-check.
If you only read one thing on this site, read this table.
| If you mainly want to… | Pick | Why |
|---|---|---|
| Write and edit long documents | Claude | Holds a consistent voice across long pieces and edits without rewriting everything. |
| Research with citations | Perplexity | Built as a search engine first — every claim links to a source you can check. |
| Do a bit of everything | ChatGPT | The widest feature set: images, voice, data analysis and a huge app ecosystem. |
| Work on real codebases | Claude | Strongest at reasoning across many files at once rather than single snippets. |
| Spend nothing | All three | Each has a genuinely usable free tier. Start there before paying. |
Full breakdown on the comparison page.
Practical walkthroughs, not press releases.
Both cost about the same. They are good at genuinely different things, and the right answer depends on what you do most days — here is how to tell.
Getting started takes about two minutes. Getting genuinely good results takes a few habits — here are the ones that matter.
We tested the main assistants on the writing tasks people actually have — drafting, editing, and sounding like a person. One is clearly ahead.
All three tools have free tiers that are good enough to judge them on. Try the one that matches your main job, give it a week of real work, and only pay once it has earned it.