ChatGPT vs Claude for legal work: which should solicitors use?
Both are capable. They're not identical. Here's an honest, practitioner's comparison for the work solicitors actually do.
- Both ChatGPT and Claude can handle legal drafting and review competently.
- Claude tends to excel at long documents and careful, instruction-following reasoning; ChatGPT has a vast ecosystem and broad familiarity.
- Whichever you choose, the verification duty is identical — neither is a source of authority.
- The installable skills in The Lawyer's Prompt are built for Claude; the book's principles apply to both.
This is one of the most common questions solicitors ask when they start with AI, and the honest answer is that both tools are good enough that the choice rarely makes or breaks the work. What matters far more is how you use them. That said, there are real differences worth understanding.
Where Claude tends to lead
For legal work specifically, Claude's strengths line up well: a large context window for working across a full contract and a precedent at once, a tendency toward careful reasoning, and reliable adherence to detailed, structured instructions. For drafting and review, where you want the model to follow your process exactly, that matters.
Where ChatGPT tends to lead
ChatGPT has enormous reach, a mature ecosystem, and broad general familiarity — many solicitors already use it daily. For quick general tasks and a gentle on-ramp, it's an easy starting point.
The thing that's identical: your duty to verify
Neither model is authoritative. Both can fabricate. The Courts and Tribunals Judiciary guidance is explicit that AI output can reflect non-UK law and must be verified for relevance and accuracy, and the Ayinde duty applies whichever tool produced the text. Choosing the "better" model lowers your error rate at the margins; it never removes the obligation to check.
The Lawyer's Prompt — book + 15 Claude skills
Everything in this guide, built into tools you install once. Solicitor-trained skills that draft, review and verify to your house style, with the Ayinde discipline built in — and the book that explains the standard behind them.
See what's included — £99 →So which should you use?
If you're choosing one to build a real workflow around for drafting and review, Claude is the stronger fit — and it's the platform the skills in The Lawyer's Prompt are built for, because skills let you bake your house style and the verification discipline directly into the tool. If you already live in ChatGPT, the book's prompts work there too; you'll just be copying and pasting them rather than having a skill run them for you.
Next: Claude for lawyers and AI contract review for solicitors.