Claude and ChatGPT are the two assistants most people decide between, and at $20 a month each they look almost interchangeable on the pricing page. Use both for a week and the difference shows up fast. Claude is the writer and the long-document reader. ChatGPT is the toolbox that does a little of everything. Which one I reach for depends on whether the job is mostly words or mostly tasks.
How they actually differ
The cleanest way to think about it is depth against breadth. Claude bets on a narrow set of things done unusually well, and what it does best is writing and reasoning over large inputs. Its prose reads more like a person wrote it, with fewer of the tells people have learned to spot in machine text, so the cleanup afterward is lighter. It also tends to question a flawed instruction instead of confidently running with it, which is what you want when you are thinking something through.
ChatGPT goes the other direction and makes breadth the whole pitch. One login covers drafting, debugging code, generating images, voice mode, analyzing spreadsheets, and browsing the live web. On top of that sits a library of custom GPTs other people built for narrow jobs, plus Deep Research and Agent Mode, which plan a series of steps and carry them out so you read a finished brief instead of opening fifteen tabs yourself. Claude has no native image generation at the consumer tier, so the moment your work needs visuals, ChatGPT is the pick.
The exception that runs against the breadth story is long documents. Claude reads its full 200K-token input before it answers, so it can tie a clause on page 3 to a footnote on page 80 without inventing the connection. Drop a sprawling contract or hundred-page PDF into ChatGPT and it can lose details buried in the middle. If your day is feeding big files in and asking precise questions, that gap decides it.
Pricing compared
At the entry tier they are matched: Claude Pro and ChatGPT Plus are both $20 a month, and ChatGPT has held that price for years. What you get for it differs in shape. Claude Pro buys the 200K-token context window and, the part that surprises people, Claude Code, the command-line coding agent that reads your real repository and edits files in your terminal. Bundling that into the $20 plan makes Pro one of the cheapest credible entry points for AI-assisted development, since comparable agents are often a separate subscription. ChatGPT Plus spends its $20 on range: the current top model, higher limits, a monthly allowance of Deep Research runs, Agent Mode, image generation, voice, and the custom GPT library.
The free tiers both have caveats. ChatGPT's free plan now shows ads in the US and caps you at ten messages in a rolling five-hour window. Claude's free tier hits its daily cap quickly too, sooner than ChatGPT's once you feed it long inputs. Treat either as an audition. At the top, ChatGPT Pro is $200 a month and Claude's Max plans run $100 to $200, for people who run their whole workday through the tool. Start on the $20 tier and only climb when you are hitting the ceiling daily.
Where each one wins
Claude wins on craft. For anything a human will read closely, its draft lands closer to publishable, and that shorter editing pass is where the hours come back. It wins again on scale of input, holding detail across a long document where smaller windows make you chunk the text. For developers, Claude Code on the same $20 plan is leverage you would otherwise pay for separately.
ChatGPT wins on coverage and on being the easy place to start. It is competent at almost everything from one login, which makes it the right pick before you know which feature you will live in. Deep Research and Agent Mode do genuine multi-step legwork, and custom GPTs let you stop re-explaining yourself every session.
Which to choose by use case
If your work is writing, get Claude. The prose needs less coaxing and less repair. If your work is long documents like contracts or research papers, get Claude for the context window and the way it stays tied to the text you supplied. If your work is coding, Claude is the better value because Claude Code rides on the base plan, though ChatGPT handles code fine if you prefer one tool. If your work is research, or you want one broad assistant that makes images and runs voice, get ChatGPT.
If you can spare it, a lot of people land on ChatGPT Plus for breadth alongside a Claude free tier for the writing. If you pay for only one, match it to what you actually do most days, not to the feature list that looks most impressive.