What is Lumi, the AI English robot?
Lumi is a free AI English speaking partner that you talk to with your voice. Tap START, speak in English and Lumi listens, replies out loud and keeps the conversation going, gently helping with words and grammar. It is ideal for practising speaking without the fear of making mistakes in front of people, any time of day, with no sign-up.
By Tanvir H · Updated
Why learners love Lumi
Voice conversation
Speak naturally using your microphone. Lumi understands you and answers with a spoken voice, like a real conversation.
Type when you prefer
Not in a quiet place? Type your message and Lumi replies in text and voice.
Patient and friendly
Make mistakes freely. Lumi never laughs, never gets tired and keeps the talk encouraging.
Gentle corrections
Lumi models correct phrasing in its replies so you pick up better grammar and vocabulary as you talk.
Practise any time
Five minutes before work or an hour at midnight. Your partner is always available.
Works in your browser
Use Chrome or Edge on your phone or computer. No app to install.
How to practise English with Lumi
- 1
Allow your microphone
Open the page in Chrome or Edge and allow microphone access when your browser asks.
- 2
Tap START and say hello
Introduce yourself or ask Lumi to talk about a topic such as your job, a movie or a job interview.
- 3
Listen and reply
Lumi answers out loud. Reply in full sentences, even if they are simple. The goal is to keep speaking.
- 4
Tap STOP when you are done
Practise daily for 10 to 15 minutes. Consistency beats long sessions once a week.
Lumi is great for
Students
Prepare for IELTS speaking, viva and presentations.
Job seekers
Rehearse interview answers until they feel natural.
Shy speakers
Build confidence privately before speaking with real people.
Freelancers
Practise client calls and small talk with international clients.
Lumi vs other ways to practise speaking
| Lumi (AI robot) | ChatterNest (live people) | Paid tutor | |
|---|---|---|---|
| Cost | Free | Free | $5 to $30 per hour |
| Available 24/7 | ✓ | When others are online | ✕ |
| Real human conversation | ✕ | ✓ | ✓ |
| Zero pressure for beginners | ✓ | Medium | Medium |
| Structured feedback | Light | ✕ | ✓ |
Tips to improve your spoken English faster
- Speak in full sentences, even short ones. 'I went to the market yesterday' beats 'market, yesterday'.
- Ask Lumi to role-play: 'Be an interviewer for a sales job' or 'Be a hotel receptionist'.
- Repeat Lumi's corrected sentence out loud. Saying it trains your mouth, not just your brain.
- Practise 10 to 15 minutes every day and track your streak.
- When you feel ready, join a live room on ChatterNest to practise with real people.
Frequently asked questions
Is Lumi free?
Yes. Lumi is completely free with no account or time limit.
Which browser should I use?
Use Google Chrome or Microsoft Edge on Android, Windows or Mac for the best voice recognition. Some browsers, including many in-app browsers, do not support speech recognition.
Lumi cannot hear me. What should I do?
Check that your browser has microphone permission, that no other app is using the microphone, and that you opened the page in Chrome or Edge rather than inside Facebook or Messenger.
Can beginners use Lumi?
Yes. Speak slowly and simply. Lumi adapts to short sentences and keeps the conversation easy.
Is my voice recorded or stored?
Your browser converts speech to text, and only the text is sent to the AI to create a reply. Nothing is stored on this website.
Can Lumi help with IELTS speaking?
Yes. Ask Lumi to give you IELTS Part 1, 2 or 3 style questions and practise answering them out loud.
Guides for this tool
Guide · 3 min readIELTS Speaking Practice with AI: Questions, Tips and a Daily Plan
Guide · 3 min readHow to Practise Speaking English Alone: 10 Methods That Work
Guide · 4 min readEnglish Pronunciation for Bangla Speakers: Fix the Sounds That Matter Most
Guide · 4 min readA 15-Minute Daily English Speaking Routine That Actually WorksWant a tool, website or app like this for your business?
Every free tool on this site is designed and coded by Tanvir H, a Bangladesh-based WordPress and Elementor web designer with 7+ years of experience and 650+ projects for clients worldwide. Fast, mobile-first, search-optimised websites that turn visitors into customers.
- 650+ projects
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