The short answer
Start with Aila, Oak National Academy's free lesson planner built for the English curriculum. Add one general assistant, Claude or ChatGPT (both have free tiers), for differentiation, feedback drafts and admin. Then use whatever your school already licenses, Microsoft Copilot or Gemini in Google Workspace, because a school-managed account is the safest place to work. The tool matters less than the workflow, and one rule keeps all of it safe: no pupil-identifying data ever goes into a consumer AI tool. And here is the honest headline: the best tool is the one you can actually drive. Every option below is easy to open and easy to waste, and the skill that turns them into three or four reclaimed hours a week is exactly what our Claude for Teachers course is built to teach, for £99 per teacher. It is designed around UK schools but built on workflows that work for teachers anywhere, whatever you teach.
A common pattern in UK staffrooms right now looks like this: a teacher tried ChatGPT once, got a generic worksheet, decided AI was overhyped, and went back to planning at 10pm. The problem was never the tool. It was the absence of a repeatable workflow and a clear rule about what is safe to type. The teachers saving three or four hours a week are not using better tools than everyone else. They are using a small set of them deliberately, on the tasks that actually eat their evenings. This guide ranks the tools by the job they do best, and is honest about the part that matters more than any of them: the skill to drive them, which is what we teach in Claude for Teachers.
1. Aila: best for UK curriculum planning, but not the best AI tool for teachers overall
Aila is Oak National Academy's free AI lesson assistant, launched in September 2024. It generates lesson plans, slide decks, quizzes and worksheets tailored to your class, all editable and downloadable. It is built on retrieval from Oak's curriculum-aligned content, which is why its output lands closer to the English national curriculum than a general chatbot starting from a blank prompt. Because it is designed for schools with safety guardrails and keeps the teacher in control of every output, it sidesteps most of the data worries that make senior leaders nervous about consumer tools.
Its limitation is scope, and that is by design. Aila plans lessons. It will not draft your reports, write a feedback comment bank, or turn a mark scheme into differentiated success criteria. For those jobs you need a general assistant. So it is the best free option if you teach the English national curriculum, but not the best AI tool for teaching overall, and little help if you teach outside the UK or on a different curriculum: it does one narrow job. The realistic setup for most teachers anywhere is a curriculum planner like Aila where it fits, plus one general assistant for everything around it, and the thing that actually banks the time is knowing how to drive that assistant. That skill travels across curricula and borders, which is exactly what our Claude for Teachers course teaches. The next two tools are where it pays off.
2. Claude: best for marking support, feedback and long documents
Claude, from Anthropic, is strongest at the reading-heavy work teachers rarely have time for. It handles long documents well, so it will work through a full scheme of work, an exam specification or a policy document and pull out what you asked for without losing the thread halfway down. Give it a mark scheme and it will draft a feedback comment bank in your marking voice. Give it one resource and it will produce three versions at different reading ages while keeping the subject content intact, which is differentiation done in minutes rather than a free period.
Its Projects feature lets you store your class context once, the topic, year group and mark scheme, but never pupil names, so you stop re-explaining yourself every session. Anthropic bills in US dollars: there is a capable free tier, Claude Pro is $20 per month (or $17 billed annually), and team plans run higher per seat (claude.com/pricing). There is no official pound price, so treat any sterling figure you see as an exchange-rate estimate. It is the assistant our Claude for Teachers course is built around, because the way it handles long documents and stored context maps neatly onto how teachers actually work, and because the workflows transfer to ChatGPT, Copilot or Gemini if your school mandates one of those instead.
Want to go deeper? Our Claude for Teachers course turns these tactics into a working skill with templates and exercises, for £99 per seat.
3. ChatGPT: the all-rounder
ChatGPT from OpenAI is the most widely used assistant, and for most teachers it is where the first experiment happens. It is a strong general drafter: lesson resources, quizzes, retrieval questions, explanations pitched at different levels, parent-friendly rewrites of technical points. The free tier is genuinely useful and covers most of what a classroom teacher needs day to day. Paid access, around £16 per month plus VAT, buys higher limits and access to stronger models rather than a different category of tool.
The honest comparison with Claude is narrower than the internet suggests. For quick generation and general drafting they are close. Claude tends to hold detail better across very long inputs and writes feedback and commentary in a slightly more careful register, which is why we lean on it for marking and report work. But a teacher who is fluent in one of them and applies the safeguarding rule is in a far better position than one hopping between both without a method. Pick one, learn it properly, and the workflows transfer if you ever switch.
4. Copilot and Gemini: whatever your school already runs
If your school runs Microsoft 365, Copilot Chat is included at no extra cost with A1, A3 and A5 licences when you sign in with your school account. That matters more than any feature: work done on a managed school account carries school-grade data protection instead of consumer terms. Copilot lives inside Word, PowerPoint and Outlook, so drafting a parent letter, building a deck from a lesson plan, or summarising a document happens where you already work. The full Microsoft 365 Copilot that acts inside Excel and Teams is a paid add-on, so ask your IT lead what you already have before paying for anything personally.
If your school runs Google Workspace, the same logic applies to Gemini, which Google now bundles into Workspace for Education editions at no extra cost rather than selling separately. It is strong inside Docs and Slides, and the version inside your school account is the safe one to use with school material. The rule of thumb for both: the managed school version beats any consumer tool on data protection, so if you have one, start there.
5. Specialist teacher platforms worth knowing
Beyond the general assistants, purpose-built teaching platforms bundle school-specific generators with school-level controls. TeacherMatic offers a large set of generators (schemes of work, rubrics, quizzes) and licences at around £30 per user per year for institutions buying 50 or more seats; Jisc ran a national AI assessment pilot with it across the 2025 to 2026 academic year. That is a whole-school conversation rather than an individual purchase, but worth a look if you want teaching-specific tools with admin oversight.
Two popular platforms, MagicSchool and Diffit, are usable but US-headquartered and US-curriculum-centric, so UK teachers adapt the output and buy school plans by quote rather than a published UK price. And when you need sourced research with citations rather than drafting, Perplexity is built for exactly that. None of these replaces the core setup above; they sit around it.
The safeguarding bit, even if you skip the rest
From 1 September 2025, Keeping Children Safe in Education brought generative AI within schools' online-safety and filtering duties, and the 2026 edition takes effect from 1 September 2026. That makes how you use these tools a compliance question, not just a preference. The rules are simple and non-negotiable: never enter names, needs, grades, photos or anything pupil-identifying into a consumer AI tool; treat every output as a draft a professional checks for accuracy and bias; and know your school's line on pupil use before you set AI-touched homework. The Department for Education is explicit that personal data should not go into generative AI tools, and where it does, UK GDPR still applies.
Every tool in this guide is easy to open and easy to use badly. The gap between "I tried ChatGPT once" and reliably saving hours a week is a set of repeatable routines: differentiation, feedback banks and report scaffolds that never touch pupil data. That is exactly what our Claude for Teachers course teaches, safeguarding-first and built for UK schools, at £99 per teacher. If your school is thinking about AI more broadly, Prime AI Solutions also runs AI opportunity assessments and consulting for organisations that want a structured rollout rather than ad-hoc experiments.
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 TeachersClaude 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.