PlumiBot translates voice, images and text across 124 languages — without ever leaving LINE. It reads the room for context, keeps replies clean, and lets everyone just talk.
Translation, voice, images and games — built from the ground up for mixed-language group chats.
Natural, contextual translation across every major world language.
It reads recent chat to settle short or ambiguous messages, then hands back just the clean translation — no tags or commentary.
Long or forwarded messages get auto-summarized before translation — no walls of text.
Send a LINE voice note and get an instant transcript plus translation; long clips are summarized.
Snap a menu, sign or document for a clean translation. Text-free photos — selfies, food, scenery — are silently ignored.
Word Chain and Translation Duel, broadcast in every group language with leaderboards and bonus tokens for winners.
!digest 3h or !digest 1d summarizes recent chat, up to 7 days back.
See top translators and active languages at a glance, and earn bonus tokens when friends join with your code.
Carousel menus and quick-reply buttons — every label shown in each person's own language, even in mixed groups.
Wherever people who don't share a language share a chat, PlumiBot keeps everyone on the same page.
Plan dinners, share news, and keep grandparents in the loop across borders — everyone reads and replies in their own language.
Standups, handovers and watercooler chat in one LINE group. Voice notes get transcribed; menus, docs and screenshots get OCR'd and translated.
Pick up real, idiomatic phrasing from everyday chat — then put it to the test in Word Chain and Translation Duel.
A few regulars below — and a hundred more, each with the same natural, idiomatic translation.
Add PlumiBot, drop it into a group, breeze through a 15-second setup, and you're translating. Then upgrade and manage your plan whenever you're ready.
Tap Add on LINE at the top of this page (or scan its QR code inside LINE) and add it as a friend. That's the whole install — nothing to download.
Open any LINE group, tap Invite, and pick PlumiBot. It starts translating the moment it joins — or chat one-on-one in a DM instead.
PlumiBot sends you a 15-second DM to set your name and the language it talks to you in. In a hurry? Tap !skip. Change your mind later with !setlang fr (or any language code).
Just chat normally. Send a voice note to get it transcribed and translated, snap a photo of a menu or sign for clean OCR, and type !help any time for a tappable menu of everything.
Hitting the free 1,000-message limit? Type !upgrade for tappable subscribe buttons, or open the dashboard. Plans start at NT$100 ($3.09)/month — or choose pay-as-you-go credits that never expire.
Type !login to open your web dashboard — see usage, switch plans, and handle billing. Moving a Group Pro plan to another group? Grab the new group's ID with !groupid and transfer it in a tap. And voilà — you're fluent.
Pay for what you use. One clear currency — tokens — for every feature.
Tokens are how AI measures text length. A short message is ~50 tokens, a normal sentence is ~200 tokens, and a long paragraph is ~1,000 tokens.
Because a 5-word message and a 500-word document aren't the same. Paying per-message would be unfair. Paying per-token means you're charged exactly for what you actually use.
| Rule of thumb | Token cost |
|---|---|
| Text translation | ~350 |
| Voice transcription | ~500 |
| Image OCR | ~1,500 |
| Daily digest | ~800–2,000 |
| Game messages | ~200–400 |
Prices in NT$ · no card for the free tier · monthly tokens reset on the 1st, PAYG credits never expire.
Free covers the thing most groups came for: chat translation in every language, plus games, digest and stats. Reading voice notes, photos and shared links costs several times more to run, so those live on the paid plans — along with a much bigger token budget.
Swipe to compare →
| Feature | Free | PAYG | Personal Pro | Group Pro |
|---|---|---|---|---|
| Text translation | ✓ | ✓ | ✓ | ✓ |
| Voice transcription | – | ✓ | ✓ | ✓ |
| Image OCR | – | ✓ | ✓ | ✓ |
| Shared link reading | – | ✓ | ✓ | ✓ |
| Word Chain + Duel games | ✓ | ✓ | ✓ | ✓ |
| Group digest | ✓ | ✓ | ✓ | ✓ |
| Group stats | ✓ | ✓ | ✓ | ✓ |
| Referral bonuses | ✓ | ✓ | ✓ | ✓ |
| Priority processing | – | – | – | ✓ |
| Transferable between groups | – | – | – | ✓ |
| Chat translation model | Same on every plan | Same on every plan | Same on every plan | Same on every plan |
| Monthly tokens | 105K | Pay-per-use | 3.5M | 10.5M |
Every plan translates chat on the same model, free ones included — paying more should buy you more translation, not a better sentence. The larger model is reserved for what genuinely needs it: reading voice notes, photos and shared links. We keep swapping in better models as they ship, and your plan follows along at no extra cost.
Need more than the standard plans? We build tailored solutions — higher quotas, custom languages, dedicated support, white-label, SLAs and on-premise.
Everything you might want to know before (or after) adding PlumiBot.
PlumiBot
!lang add <code>.!skip anytime.!groupid in the new group to get its ID, then transfer the plan from your dashboard.!digest can summarize it, then auto-deleted; DMs aren't stored. Everything sits in encrypted databases with row-level security.!help in LINE for an interactive menu, or email support@plumibot.com.Everything's a chat message, and media just works. The essentials are below — type !help in LINE for the full, tappable list.
!languagesShow active languages with quick-add buttons.!lang add <code>Add a group language, e.g. !lang add fr.!setlang <code>Set the language PlumiBot talks to you in.!wordchainStart Word Chain (add scores for the leaderboard).!duelStart a Translation Duel, best of 5.!digest <range>Summarize recent chat, e.g. !digest 1d (max 7 days).!statsGroup activity and top translators.!refer / !redeemShare a code — both groups earn bonus tokens.!good / !badRate the last translation.!planYour current plan and usage.!upgradeUpgrade options with tappable subscribe buttons.!loginOpen your web dashboard (link sent privately).Anytime:
!cancel or !skip to abort the current flow.
PlumiBot was born from a simple desire: to make relationships easier across languages, cultures, and borders.
Long before apps and instant messages, carrier pigeons were the world's most trusted messengers — crossing borders and braving storms to reach people who had no other way to connect. Plumi carries on that tradition in a modern form: swift, reliable, and always bridging the distance between languages and cultures.
Swift. Loyal. Always delivering.
A little messenger, always mid-flight between two languages.
The softest feather of a bird. Representing lightness, agility, and the gentle touch of a natural translation.
The quill used for writing. Representing the art of communication and the permanence of shared understanding.
Our goal is to make relationships easier around the world — not just through text, but through voice and images that make communication feel effortless across every language.
Every feature answers one question: does this make it easier for people to connect?
Translation isn't just swapping words — it's carrying humor, warmth and tradition across.
New platforms, deeper lore and seasonal celebrations — PlumiBot grows with its people.
Every update to PlumiBot, from V1 to today.
Pay-as-you-go credit came in three fixed sizes. Now there are six one-tap amounts up to NT$3,000, and a field for typing your own — so a top-up can match what you actually expect to use instead of the nearest button.
We benchmarked our models against each other on real chat. The cheaper one translated just as well and answered several times quicker — so every plan now translates chat on it, Free included. Paying more buys you more translation, not a better sentence.
Translation now runs through a provider gateway instead of a single vendor, so one outage can no longer take the bot down, and the Free tier is now honest about what it covers.
The language list grew from a shortlist to 124 — and every menu button in LINE now goes where its label says.
Signing in and everything behind it — usage, billing, top-ups, settings — now reads in the same 14 languages as the rest of the site.
PlumiBot gets the retro-computing wardrobe it always deserved — a whole new site, rebuilt page by page.
Every plan's monthly quota grew by a large multiple, and pay-as-you-go moved to one flat rate per message. Nothing costs more than it did.
Usage, billing and group settings in one place — sign in with !login and PlumiBot sends you a link.
A security and performance pass across the whole web layer, plus faster first loads.
The big V2 launch — PlumiBot grows from a simple translator into a full group chat assistant with a smarter translation core.
!digest, !stats, quality feedback and referrals.Stripe subscriptions, pay-as-you-go credits, user & admin dashboards, and passwordless login via LINE DM tokens.
The original LINE bot — 50+ language group translation, name registration and context-aware conversation memory.
Questions, feedback, bug reports or enterprise inquiries — every message reaches support@plumibot.com.
Select Enterprise / Custom plan in the form for higher quotas, dedicated support, and SLAs.
Add PlumiBot to LINE and run your first translation in under 30 seconds — no card required. Start free, upgrade whenever your group grows.