Most teachers who use AI started with ChatGPT because it was the one they had heard of. Many have since tried Claude after a colleague said it was better for planning. Both are capable, and the honest answer to which is better depends on the job, and on whether your school already gives you something safer.
This guide compares them on the work teachers actually do. For the wider toolkit, including Gemini, Copilot and Oak National Academy's Aila, see our full comparison of AI for teachers.
Claude vs ChatGPT for Teachers: Task by Task
| Task | Better choice | Why |
|---|---|---|
| Lesson planning from a scheme of work | Claude | Holds a long scheme steady and keeps the subject content intact |
| Differentiating a text for reading age | Claude | Changes the reading demand without dropping the content |
| Quick ideas, starters and plenaries | Either | Both are fast; use the one you have open |
| Feedback against a mark scheme | Claude | Follows a detailed mark scheme closely; anonymise everything |
| Report comment banks | Either | Build banks by attainment band, then personalise offline |
| Images and illustrations | ChatGPT | Generates images; Claude does not |
| Parent letters and admin | Either, or your school Copilot | The school-managed tool is safest for anything sent home |
The pattern is consistent. Claude's edge shows on long, reading-heavy tasks where precision matters. ChatGPT closes most of the gap on short tasks, and it is the only one of the two that makes pictures. Fluency in one tool, used with a method, beats dabbling in both.
Lesson Planning and Differentiation
Give Claude a full scheme of work and ask for differentiated success criteria at three reading ages, and it holds the subject content steady while genuinely changing the reading demand. ChatGPT does this well on shorter texts, but on long inputs it is more likely to simplify the content along with the language.
Here is my Year 8 scheme of work on the water cycle (attached). For lesson 3, write success criteria at three levels: working towards, expected and greater depth. Keep the scientific content identical across all three; change only the reading demand and the scaffolding. Then write a 10-minute starter that checks prior learning from lessons 1 and 2.
In both tools, Projects let you store your scheme of work, your school's lesson template and your marking language once, so you are not pasting them every time. Never store pupil information in a Project.
Want to go deeper? Our Claude for Teachers course turns these tactics into a working skill with templates and exercises, for £99 per seat.
Feedback, Marking and Reports
For feedback, give the tool your mark scheme and an anonymised extract, and ask for feedback in your own voice with one strength and one next step. Claude tends to follow a detailed mark scheme more closely. Either way, read every word before it reaches a child, because both tools can be wrong about subject detail while sounding certain.
Reports are where the data rule matters most. Build comment banks by attainment band and subject, describing the type of pupil rather than the pupil, then personalise them offline. That gets most of the time saving without a single name leaving your laptop.
Three rules, whichever tool you use
1. No pupil-identifying data in a personal account: names, needs, grades, photos, or details that identify a child in context.
2. Every output is a draft a professional checks for accuracy and bias.
3. Know your school's AI policy before you start. Our guide to DfE AI guidance and KCSIE sets out what schools need in place.
Where Each One Falls Short
Claude cannot generate images, so anything that needs a picture, a labelled diagram drawn as an image or a custom illustration for a worksheet has to come from elsewhere. Its free tier also runs out sooner on long documents, which is exactly where it is strongest, so heavy planners tend to hit the limit in the middle of a scheme of work.
ChatGPT is more likely to drift on long inputs: simplifying the content along with the language when you ask for a lower reading age, or quietly dropping part of a mark scheme. It is also more inclined to produce a confident answer to a subject question it has got wrong, which matters most in science and maths.
Both can invent sources, misremember the national curriculum and present American spelling or exam conventions unless you tell them otherwise. Start every planning conversation with the key stage, the exam board where relevant, and "use UK English". Then check facts against your own subject knowledge before anything reaches a pupil. Neither tool replaces that check; they just make the first draft quicker.
Your School Account Comes First
Before choosing between Claude and ChatGPT, check what your school already provides. Copilot Chat is included at no extra cost with Microsoft 365 A1, A3 and A5 when you sign in with a school account, and Gemini is bundled into Google Workspace for Education. Both are run by your IT team under the school's data protection terms.
That makes the school-managed tool the right place for anything that touches school material. The pattern that works in most schools is the managed tool for day-to-day work, plus one personal assistant, Claude or ChatGPT, for planning and resource creation using generic, non-identifying inputs.
What They Cost
Both have free tiers, and for most teachers that is where to start. On paid personal plans, ChatGPT Plus is around £16 a month plus VAT. Claude Pro is priced by Anthropic in US dollars, at $20 a month or $17 a month billed annually. Paid plans give higher limits and access to the strongest models, which matters most for long documents.
If you are only going to pay for one, pay for the one that suits your heaviest task. For most teachers that is planning and differentiation, which favours Claude.
Why Claude for Teachers is the best choice for teachers, in the UK and beyond
It is built by Prime AI Solutions, an AI consultancy led by Umar Din FCCA that trains professional teams across UK and MENA organisations. The same prompting method and tool-selection discipline we use in paid engagements, rebuilt for the classroom and wrapped in the safeguarding rules from the first lesson, not bolted on at the end.
- Personalised to the way teachers actually work: planning, differentiation, marking and reports
- Self-paced online, no coding or technical skills required
- Completion records for every teacher to evidence training, and KCSIE-ready for UK schools
- A free preview so you can judge the fit before you pay
- £99 per seat, cheaper than a single month of most AI subscription tools
We built Claude for Teachers because teachers everywhere deserve practical, safe AI training that hands their evenings back, not another compliance headache. It is designed around UK schools and their safeguarding duties, but the workflows work for teachers on any curriculum, part of a wider mission to put trustworthy, safeguarding-first AI skills into every staffroom, so the technology reaches classrooms on teachers' terms.
Explore Claude for TeachersFrequently Asked Questions
Claude for Teachers: Plan, differentiate, mark and report, safely
The UK-schools course: lesson planning, differentiation, feedback and report scaffolds, with the safeguarding rules built into every lesson rather than bolted on. Self-paced, no coding required.