Choosing The Right AI

AI Comparison

How ChatGPT, Gemini, and Claude can support English learners, teachers, and people using English at work — with practical examples for each.

“The best AI is the one that fits the task. A learner practising vocabulary, a teacher drafting a lesson, and a manager polishing an email each have different needs — and each tool has different strengths.”

GPT ChatGPT
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Gemini
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C Claude
At a Glance
ChatGPTGeminiClaude
Best forAll-round speed and creative tasksSearch, multimedia, Google integrationCareful writing & long documents
Standout featureVoice mode & Custom GPTsLives inside Gmail, Docs, MeetLong context, polished tone
Free versionYes — daily limit, fewer featuresYes — full Gemini 2.5 accessYes — daily message limit
Voice / speakingExcellent — natural voice modeGood — Live mode in appLimited — text-first
Image inputYes — describe, translate, mark upYes — strong with diagrams & videoYes — thoughtful descriptions
Long documentsGoodExcellent — up to 1M tokensExcellent — up to 200K tokens

For Learners Practise, ask, improve.

If you are studying English, AI can be a patient practice partner — available any hour, never tired of your questions. The three tools all do similar things, but each has a personality and a few features that suit different parts of language learning.

ChatGPTBest for speaking practice

The most well-known AI assistant and probably the easiest to start with. It is excellent at open-ended conversation and instant grammar feedback in plain language.

  • Voice mode — have natural spoken conversations to practise pronunciation and listening.
  • Role-play — ask it to be an interviewer, waiter, doctor, or customer.
  • Image input — photograph a menu or sign and ask what it means.
  • Custom GPTs — reusable tutors built for IELTS, TOEFL, business English, etc.
Open ChatGPT →
Speaking & everyday practice

GeminiBest for vocab & research

Gemini’s biggest advantage is how it connects to the rest of Google. Ask about a word and you will often get definitions, related YouTube videos at your level, and authentic example sentences from across the web.

  • Search grounding — answers backed by real web sources.
  • YouTube integration — suggest videos & summarise them.
  • Multilingual — strong translations and side-by-side comparisons.
  • Gems — build a custom tutor (e.g. “B2 partner that corrects only 3 mistakes per turn”).
Open Gemini →
Vocabulary, look-ups & video

ClaudeBest for reading & explanations

Claude tends to give the most thoughtful explanations of grammar and meaning, and is less likely to confidently give wrong answers — important when you are a beginner who cannot easily spot mistakes.

  • Long texts — paste an article and ask for a simpler version, vocabulary list, or comprehension questions.
  • Careful tone — patient, structured grammar explanations.
  • Projects — keep your textbook excerpts in one place and Claude remembers your level.
  • Artifacts — build mini interactive practice exercises inside the chat.
Open Claude →
Reading & written feedback
Sample conversation · Asking for grammar help
How do I use “used to” correctly?
“Used to” describes past habits or states that are no longer true. Two main patterns:
  • “I used to live in London.” (past habit, now I don’t)
  • “I used to be afraid of dogs.” (past state, now I’m not)
Tip: it’s only for the past. For present habits, use “usually” instead. Want 5 practice sentences to try?

For Teachers Plan, adapt, mark.

For teachers, AI can take the slow parts of preparation off your plate — lesson plans, worksheets, level-adapted texts, and feedback on student writing — so you can spend more time with your learners and less on photocopiable materials.

ChatGPTBest for lesson generation

Fast for the bulk of preparation work. Lesson plans, comprehension worksheets, role-play scripts, gap-fill exercises, and quizzes are produced in seconds and easy to refine.

  • Custom GPTs — build a reusable class tutor and share a link with students.
  • Image generation — visual prompts for storytelling tasks.
  • Big ecosystem — lots of teacher templates online and active communities.
  • Canvas mode — collaborate on a worksheet side-by-side.
Open ChatGPT →
Plans, worksheets, quizzes

GeminiBest for Google Workspace

The path of least resistance if your school uses Google. It lives inside Docs, Slides, Forms, and Classroom, so handouts and slide decks can be drafted without copy-pasting between tools.

  • Multimodal — photograph a student’s handwriting and ask Gemini to mark it.
  • Video — summarise YouTube videos into discussion questions.
  • Forms / Classroom — auto-generate quizzes and feedback.
  • Gemini for Education — school-grade privacy & admin controls.
Open Gemini →
Workspace, video & visuals

ClaudeBest for feedback & adapting

Claude shines on the slow, careful tasks. It writes substantive feedback on student essays (not just “good job!”) and is excellent at adapting authentic texts to a target level while keeping the meaning intact.

  • Level adaptation — rewrite a B2 article for an A2 reader, or vice-versa.
  • Long context — paste a class set of essays and ask for patterns.
  • Sensitive topics — well-reasoned around current affairs, mental health, culture.
  • Projects — keep curriculum & rubrics on hand for consistent marking.
Open Claude →
Marking, adapting, careful prose
Sample conversation · Generating a level-adapted reading
Make a B1 reading on remote work (~180 words) plus 5 comprehension questions.
Reading (B1, ~180 words):
Remote work has become very common since 2020. Many companies now let their employees work from home, at least part of the time. This change has brought both benefits and challenges

Questions:
  • 1. When did remote work become very common?
  • 2. Name two advantages mentioned in the text.
  • 3. What does “flexible” mean in paragraph 2?
  • 4. Find a synonym for “challenge”.
  • 5. Do you think remote work is positive? Why?

At Work Write, summarise, present.

If English is your working language, AI can help you draft emails, polish reports, prepare presentations, and summarise long documents — quickly, and at a professional level. The choice of tool often depends on which apps you already live inside.

ChatGPTBest for all-purpose speed

A safe default when you need a quick, capable assistant for many office tasks: emails, summaries, presentations, brainstorming, and translation between many languages.

  • Image generation — quick illustrations for slides & social posts.
  • Custom GPTs — agents trained for contracts, market research, etc.
  • Data analysis — upload a CSV and ask for charts.
  • Wide language support — strong in dozens of languages.
Open ChatGPT →
Daily office assistant

GeminiBest for long documents

Inside Gmail, Docs, Sheets, and Meet, Gemini is the easiest path if your business runs on Google. Strong on very long documents — feed it a 200-page contract or report and ask for the key points.

  • Meet — live notes & action items during calls.
  • Sheets — pull figures and turn them into charts on request.
  • Workspace search — ask about your own emails & files.
  • Massive context — up to 1M tokens for huge documents.
Open Gemini →
Long docs & meetings

ClaudeBest for polished writing

Often the strongest at polished business writing — emails that sound professional, reports that read naturally, careful rewrites that preserve your meaning while changing the tone.

  • Style guides — follows a detailed brand voice well.
  • Projects — keep brand & product context in one workspace.
  • Artifacts — build small training quizzes & demos inline.
  • Tone control — ask for “warmer”, “firmer”, “shorter” — it actually changes.
Open Claude →
High-stakes writing
Sample conversation · Softening a difficult email
Make this email more diplomatic: “Your report has too many errors. Please fix it.”
Try this:

“Hi [Name], thanks for sending the report through. I’ve had a read and noticed a few areas where the figures or wording could use a second pass — happy to flag the specifics if that’s helpful. Could you share a revised version by Friday? Appreciate the work on this so far.”

Want a shorter version, or one that’s even more direct?

Top Tips For Getting Good Answers

The same prompt can produce a brilliant or boring answer depending on how you ask. A few small habits make a big difference — whichever AI you use.

1 · Give context first

Say who you are and why you’re asking. “I’m a B1 English learner preparing for a job interview” gets a much better answer than just “help me with English”.

2 · Ask for a format

“Give me 5 bullet points”, “answer in a table”, “write 200 words”. Naming the format gets you a usable answer the first time.

3 · Show, don’t just tell

Paste an example of what good looks like. “Here’s a sample of our newsletter style — write the next one in the same voice.”

4 · Iterate, don’t restart

If the first answer isn’t right, reply with what to change — “shorter, more formal, drop the second point”. You’ll get a better result faster than starting over.

5 · Always check facts

AI sounds confident even when wrong. For numbers, names, and current events, verify with a real source — especially before sharing with students or colleagues.

6 · Don’t share private data

Treat AI like a smart stranger. Avoid pasting passwords, ID numbers, or confidential business documents unless you’re using an enterprise version with privacy guarantees.

Where To Learn More

Each company publishes free guides on getting better results. Bookmark these — a few minutes spent learning to prompt well saves hours later.