AI Services in Speech Recognition & Synthesis

Tools leveraging AI technology to analyze and generate voice dataFeaturing 48 AI services in total.

イレブンラボ

ElevenLabs

An AI audio platform centered on high-quality AI voice generation and voice cloning in 70+ languages, extending to dubbing, speech-to-text (Scribe), sound effects, music, and conversational AI agents. Models include Eleven v3. Free tier / paid from $6/mo.

# 音声生成# 音声認識・音声合成# 日本語対応

ヴィード

VEED

An all-in-one online video editing + AI video generation platform from VEED (UK), usable entirely in the browser. It supports text-based editing (cut by editing the transcript), auto subtitles (125+ languages), translation/dubbing (29 languages, Japanese supported), and Text-to-Video, AI avatars, voice synthesis and noise removal. You can start for free; paid plans are AI-credit based from Creator at $20.

# 動画生成# 字幕生成# 音声認識・音声合成

ブリュー

Vrew

An all-in-one AI video editor (by VoyagerX) that auto-transcribes speech so you edit video like a text editor. Beyond auto-captions and silence cutting, it bundles text-to-video, AI voice, and AI images. Free tier available; paid is credit-based from ¥1,590/mo.

# 字幕生成# 音声認識・音声合成# 日本語対応

デスクリプト

Descript

Descript is an AI editing platform where you edit video and audio as if editing the transcript—delete the text and the corresponding footage/audio is deleted too. It centers on the agentic AI co-editor "Underlord" (cuts, structure, video creation from prompts) and offers AI Voices, captions, and translation/dubbing (30+ languages). Note: the UI is English-only and Japanese transcription is not supported. Pricing: Free / Hobbyist $24 / Creator $35 / Business $65 (AI-credit based).

# 音声認識・音声合成# 動画生成

オッターエーアイ

Otter AI

Otter AI is an AI meeting assistant that transcribes meetings and interviews in real time and adds summarization and AI agent capabilities (from Otter.ai). It automatically joins Zoom, Teams, and Google Meet to record with speaker identification and automatically summarize key points and actions. It also offers AI chat across meetings and agents for sales and recruiting, with transcription available in English, Spanish, French, German, Japanese, and Chinese. Pricing is Basic free (300 min/month), Pro $8.33, Business $19.99, and Enterprise (annual billing, per user).

# 音声認識・音声合成# 議事録作成

クドー

KUDO

KUDO is a live speech translation and captioning platform from KUDO, Inc. in the United States. It pairs AI speech translation covering over 70 languages around the clock with a marketplace of more than 12,000 professional interpreters bookable on demand, reaching over 200 languages including sign languages. Microsoft Teams has a native integration, and one-off plans need no annual subscription. Pricing is quoted individually. ISO 27001 and SOC 2 Type 2 certified.

# 会議翻訳・AI同時通訳# 要約・翻訳# 字幕生成# 音声認識・音声合成

インタープリファイ

Interprefy

Interprefy is an enterprise multilingual communication platform from Interprefy AG of Switzerland. It combines remote simultaneous interpretation by over 6,000 professional interpreters with AI speech translation and multilingual live captions across more than 6,000 language combinations, all on one contract — and each session can be assigned to human, AI, or hybrid. It integrates with over 80 platforms including Teams, Zoom, and Webex. ISO 27001 certified and hosted in Europe. Pricing is quoted individually.

# 会議翻訳・AI同時通訳# 要約・翻訳# 字幕生成# 音声認識・音声合成

ワードリー

Wordly

Wordly is an AI translation and captioning platform for meetings and events from Wordly, Inc. It bundles translation, captions, transcripts, and summaries into one price with every language included, covering dozens of languages and over 3,000 language pairs. Attendees join from a QR code or URL in the browser with no account needed. Pricing is annual hour packages in USD: Starter (10 hours) starts at about $1,500; Pro (25 hours) through Enterprise (500+ hours) are quote-only. ISO 27001 and SOC 2 Type II certified.

# 会議翻訳・AI同時通訳# 要約・翻訳# 字幕生成# 音声認識・音声合成# 業務効率化

コトバ

kotoba

kotoba is an AI simultaneous interpretation app from Kotoba Technologies Japan. Its in-house speech foundation model, Koto, reads up to 0.5 seconds ahead of the conversation, holding latency from speech onset to about 1 second. It covers 21 input and 13 output languages on iOS and Android. The free plan gives 5 hours a month, Unlimited is $99/month, and the business Enterprise licence is ¥15,000 per device per month. A Meeting Bot for web conferences is also available.

# 会議翻訳・AI同時通訳# 要約・翻訳# 音声認識・音声合成# 業務効率化# 日本語対応

ディープエルボイス

DeepL Voice

DeepL Voice is the real-time voice translation solution from DeepL SE, the company behind the DeepL translator. It works with Microsoft Teams, Zoom Meetings, and Google Meet, showing captions in over 40 languages — a different language per participant within the same meeting. Speech-to-speech translation is coming soon. Transcripts and translations are never stored permanently and are deleted once the call ends. Pricing starts at ¥2,200 per user per month for Voice Starter (tax included; ¥1,900/month billed annually), with a 14-day free trial.

# 会議翻訳・AI同時通訳# 要約・翻訳# 音声認識・音声合成# 業務効率化# 日本語対応

ボイスピング

VoicePing

VoicePing is a multilingual communication platform from VoicePing Inc. It can translate Zoom, Teams, and Google Meet audio directly from your PC, or send a meeting bot into the call, and it also covers in-person meetings and trade-show events. Translated meetings are kept as AI minutes, summaries, and action items in a searchable meeting log. The free plan covers 90 minutes a month, paid plans start at ¥3,163/month, and event interpretation starts at ¥33,000 per day (tax included).

# 会議翻訳・AI同時通訳# 議事録作成# 要約・翻訳# 音声認識・音声合成# 業務効率化# 日本語対応

センティオ

Sentio

Sentio is an AI simultaneous interpretation service from Pocketalk Corporation. It runs in the browser alone and interprets both microphone input and browser tab audio without admitting a translation bot to the meeting. Speech in 44 languages becomes real-time subtitles and audio in 77, shareable with 50+ attendees by QR code or URL. The free trial covers 30 minutes a month; Premium is ¥3,300/month or ¥33,000/year (tax included).

# 会議翻訳・AI同時通訳# 要約・翻訳# 音声認識・音声合成# 業務効率化# 日本語対応

エーシーズミート

ACES Meet

ACES Meet is an AI meeting-minutes and sales-call analysis tool from ACES, Inc., an AI startup born out of the University of Tokyo's Matsuo Lab. LLM-based speech recognition automatically transcribes and summarizes online and in-person meetings, and dictionary registration plus patented speaker-matching technology make it more accurate for your organization the more you use it. Salesforce integration and other sales-focused features are built in. Pricing is unpublished (contact sales); a free trial is available.

# 議事録作成# 音声認識・音声合成# セールス# 業務効率化# 日本語対応

アンプトーク

amptalk

amptalk is a Japanese conversation-intelligence AI from amptalk Inc. that automatically transcribes, summarizes, and analyzes mobile-carrier calls, web meetings, and in-person sales meetings, and auto-fills SFA/CRM systems such as Salesforce. The lineup also includes the AI role-play tool "amptalk coach" and an email AI agent; adopters include SoftBank and Fujitsu. Pricing is not disclosed (contact required), with annual contracts starting at 10 users.

# セールス# 音声認識・音声合成# 議事録作成# 業務効率化# 自動化・省力化# データ連携（API連携）# 日本語対応

スピーク

Speak

Speak is a speaking-focused AI English conversation app from San Francisco-based Speakeasy Labs, backed by the OpenAI Startup Fund. You can practice speaking with an AI tutor without limits and get instant feedback on pronunciation and phrasing. 15M downloads worldwide. After a 7-day free trial, Premium starts at 19,800 yen/year (about 1,650 yen/month). Japanese UI and support available.

# AIチャットボット# 音声認識・音声合成# 自己啓発・コーチング# 日本語対応

ボイスボックス

VOICEVOX

VOICEVOX is a free text-to-speech and singing-voice synthesis app developed by Hiho (Kazuyuki Hiroshiba). With a credit notice, its 46 character voices — including Zundamon and Shikoku Metan — can be used free of charge for both commercial and non-commercial purposes (terms differ per character). An open-source staple for Japanese video narration on Windows, Mac, and Linux.

# 音声生成# 音声認識・音声合成# エンタメ／ゲーム・遊び# 日本語対応

ウィスパーフロー

Wispr Flow

Wispr Flow is an AI dictation app that turns what you say into writing you can actually send. It types wherever your cursor is, so it works in Gmail, Slack, Notion, your terminal, ChatGPT — anywhere you can type. It strips out filler words and false starts, adds punctuation and line breaks, and can hold a different tone for each app. It handles 100+ languages including Japanese, and you can teach it proper nouns and jargon through its dictionary. Available on Mac, Windows, iPhone, and Android. There is a free plan, and Pro is ¥960 per user per month as listed for Japan (pricing is shown in local currency). Built by Wispr in San Francisco, which has raised $56M to date.

# 音声認識・音声合成# 音声合成・文字起こし# 議事録作成# 生産性向上# 日本語対応

サマリー

Sumarii

An AI transcription and meeting-minutes service designed for spoken Japanese. It handles microphone recording, audio and video files, media URLs, and meeting-bot invites to Zoom, Google Meet, and Microsoft Teams, taking you from a transcript with speaker labels and timestamps all the way to a templated AI summary on a single screen. Its distinguishing feature is that you can fix broken proper nouns on the spot — via a "words that need checking" list of low-confidence terms and natural-language edits through AI chat. Audio, transcripts, and minutes are stored in Japan and are never used to train AI (zero retention). Up to 3 hours a month is free with no credit card required, with every feature available.

# 議事録作成# 音声合成・文字起こし# 音声認識・音声合成# 要約・翻訳# 業務効率化# 生産性向上# 日本語対応

オトリオ

Otolio

An AI agent that proactively automates all meeting-related work — before, during, and after meetings. Rebranded from the AI minutes service "Smart Shoki," it goes beyond recording, transcription, and minutes to take over pre-meeting company research and post-meeting CRM updates and follow-up emails. Offered by Epicbase, with a "minutes agent" and a "sales agent." ISO/IEC 27001 certified; data is stored domestically and not used for machine learning without permission.

# 議事録作成# AIエージェント# 音声認識・音声合成# 音声合成・文字起こし# セールス# 業務効率化# 日本語対応

アズミ

Asmi

A voice-first AI personal assistant you reach on iMessage, WhatsApp, and by phone. It calls you each morning to take your tasks, then handles real-world errands on your behalf — calling, texting, and emailing service providers (book a dentist, cancel a gym, dispute a charge) and chasing until it's done. By Humint Labs, Inc.; 50+ languages.

# AIエージェント# 音声生成# 音声認識・音声合成# ボイスボット# 自動化・省力化# 業務効率化

ボイスモッド

Voicemod

A voice changer and soundboard app that transforms your voice into another in real time. With 200+ voices, AI voices, and Voicelab (custom voices), it pipes your transformed voice straight into Discord, OBS, and in-game voice chat. Windows/Mac/mobile. Free plan available; Pro comes in monthly, annual, or lifetime options.

# 音声生成# 音声認識・音声合成# エンタメ／ゲーム・遊び# 日本語対応

コエフォント

CoeFont

A text-to-speech and voice synthesis service with a library of over 10,000 AI voices. You can register your own voice from about 50 recorded sentences, and it also offers a voice changer and enterprise real-time AI interpretation.

# 音声生成# 音声認識・音声合成# エンタメ／ゲーム・遊び# 日本語対応

エーアイリード

ailead

A Japanese enterprise AI-agent platform (by ailead Inc.) that integrates and structures conversation data from sales meetings, interviews, and calls, and has AI agents autonomously evaluate, reflect to SFA/ATS, and create tasks. Zoom/Teams/Meet, ISO/IEC 27001, 500+ companies. Also covers recruiting.

# 議事録作成# AIエージェント# 音声認識・音声合成# セールス# 業務効率化# 日本語対応

シャールック

SHERLOOK

SHERLOOK is a "proofreading tool for video" from HARAKAMI Inc. that supports the final check of finished videos. Upload a video and its AI checks on-screen caption typos, differences from the script, visual glitches such as black frames and gaps, audio levels, social media safe zones, and each client's banned and required wording, then organizes the results into a list with timecodes, the relevant frames and suggested corrections. Results can be shared via a link that needs no login, or as PDF/CSV. An MVP version for businesses is available from ¥30,000 per month (excl. tax, per account).

# AI-OCR（文字認識）# 字幕生成# 音声認識・音声合成# 品質向上・クリエイティブ支援# 業務効率化# 日本語対応

ボイスエーアイ

Voice AI

Voice.ai, from Voice AI Inc., is a voice platform built around a real-time AI voice changer that converts your voice using thousands of voices. The desktop voice changer is free and works for game streaming, broadcasting, and online meetings. It extends to Voice Universe (4,000+ voices), voice cloning, TTS (15+ languages), AI voice agents, and developer APIs. Pricing is credit-based: Free / Starter $5 / Launch $12+.

# 音声生成# バーチャルヒューマン# 音声認識・音声合成

ライトスクライブ

LiteScribe

LiteScribe is an AI transcription and meeting-notes service that turns meetings, interviews, and video audio into text and automatically generates AI summaries, topic tags, and action items. No recording bot joins the call: the app captures your computer's system audio directly on your own machine, so nothing shows up in the participant list and — since no meeting URL is needed — in-person conversations are recorded exactly the same way. The desktop builds (Windows, macOS, Linux) add an offline mode (Pro and Business plans) that runs both transcription and AI summarisation on your own computer. Transcription covers 100+ languages and the interface is available in 15 languages including Japanese, with speaker diarization, PDF/DOCX/SRT export, and an AI chat that answers with citations and timestamps. Pricing starts with a permanent free tier of 120 minutes a month with no credit card, and paid plans from US$7.95 per month billed annually. When offline mode is not used, cloud transcription is performed by AssemblyAI in the United States.

# 議事録作成# 音声合成・文字起こし# 音声認識・音声合成# 要約・翻訳# 字幕生成# 業務効率化# 生産性向上# 日本語対応

スーパーウィスパー

Superwhisper

An AI dictation app from SuperUltra, Inc. (US). It turns what you say into clean text without filler words and pastes it straight into the app you are using, such as Slack, Gmail or Cursor. You can choose between local voice models that run on your device, such as Whisper, and cloud models, and switch writing styles with task-specific "modes" for email, messages and more. On the Mac it also records meetings with speaker labels and summaries, and Pro adds audio and video file transcription. Available on Mac, Windows, iPhone and Android. The Free plan offers unlimited dictation with local Whisper models; Pro costs US$8.49 per month, US$84.99 per year or US$249.99 lifetime.

# 音声認識・音声合成# 音声合成・文字起こし# 議事録作成# 生産性向上# 日本語対応

ルーラ

Loora

Loora is an AI English conversation coach app from Loora A.I Ltd. (Israel), listed on the Japanese App Store as "AI英会話 ルーラ". You speak English in free conversation on any topic or in role-plays where you set your own role, the AI's role and the scenario, and get instant feedback on grammar and pronunciation. It offers translation and a dictionary, a new word every day, and a video-chat-style avatar; the app supports 12 languages including Japanese. Free to download; monthly and yearly subscriptions are in-app purchases with a 7-day free trial.

# AIチャットボット# 音声認識・音声合成# 自己啓発・コーチング# 教育# 日本語対応

プラクティカ

Praktika

Praktika is an AI English conversation and language practice app from Praktika.ai Company (US). You talk by voice with 3D avatar AI tutors that each have their own personality and accent, in free conversation or role-plays, and mistakes in pronunciation, grammar and vocabulary are corrected for each message with a rephrasing and an explanation. It offers 1,000+ lessons including IELTS/TOEFL, business and travel, pronunciation scores, and explanations switchable to Japanese (the app supports 15 languages including Japanese). Free to download; Praktika Premium is an in-app purchase with a 7-day free trial.

# AIチャットボット# 音声認識・音声合成# 自己啓発・コーチング# 教育# 日本語対応

エルサスピーク

ELSA Speak

ELSA Speak is an AI English speaking and pronunciation practice app from ELSA, Corp. (US). It scores the English you speak sound by sound and shows how to fix it, and offers role-play conversations with generative AI plus the Speech Analyzer, which rates a speech on pronunciation, intonation, fluency, grammar and vocabulary and estimates IELTS, TOEFL and TOEIC levels. Free to start; paid plans are ELSA Pro, Premium and Professional (7-day free trial). Its Japanese subsidiary is ELSA Japan G.K.

# AIチャットボット# 音声認識・音声合成# 自己啓発・コーチング# 教育# 日本語対応

アムニス

Amnis

Amnis is an AI dictation app: hold a key and speak, and clean text — with filler words and self-corrections removed — is typed straight into wherever your cursor is. It works in any app, from email and Slack to documents, automatically switches between personal, work and email writing styles depending on the app, and offers a custom vocabulary, Smart Inserts for spoken shortcuts to saved snippets, and voice requests to reply, rewrite, translate or summarize. It runs on Mac, Windows, iPhone and Android, and on Apple silicon Macs dictation works even without an internet connection. The free plan has unlimited dictation (AI formatting up to 2,000 words a week); Pro is ¥1,980 a month or ¥14,220 a year. For users in Japan it is provided by Senolytic Lab LLC (Tokyo).

# 音声認識・音声合成# 音声合成・文字起こし# 自動返信・メール作成# 生産性向上# 日本語対応

アレクサプラス

Alexa+

Amazon's generative AI–powered personal assistant. Beyond answering questions in natural conversation, it handles tasks for you, such as shopping, checking deliveries, controlling smart home devices and creating Routines. In Japan, free early access began on October 29, 2026, on Echo, Fire TV, the Alexa app and the browser (alexa.jp). After early access ends, it is included for Prime members at no extra charge and costs ¥3,000/month for everyone else.

# AIエージェント# 生成AI（LLM）# 音声認識・音声合成# スケジューラー# 自動化・省力化# 日本語対応

エーアイワーカー ボイスエージェント

AI Worker VoiceAgent

A phone-answering AI agent (voice agent) for call centers from AI Shift, Inc. (Shibuya, Tokyo), a wholly owned subsidiary of CyberAgent. Starting with "How can I help you?", it identifies what the caller needs and automates reservations, order taking, FAQ answers and transfers to operators. It combines a "scenario type" that responds along fixed scenarios with an "autonomous dialogue type" in which generative AI builds the conversation, and offers specialized agents for capturing model numbers, names and addresses and for scheduling. Evolved from the "AI Messenger" series offered since 2016 and renewed as part of the "AI Worker" series in December 2025. Used by more than 400 companies and handling over 400,000 calls a month (official website). Pricing is not published and is provided on request.

# ボイスボット# AIエージェント# 音声認識・音声合成# 自動化・省力化# 業務効率化# 日本語対応

トランシンクエーアイ

Transync AI

Transync AI is a real-time AI speech translation tool from Transync AI Inc. (US). It supports 60 languages, detects each speaker's language automatically, and handles bilingual subtitles, spoken translation playback and AI meeting notes. It translates Zoom, Microsoft Teams and Google Meet audio without a meeting bot or browser extension, and a virtual microphone can deliver translated speech to the other side. Available on Windows, macOS, iOS, Android and the web. New sign-ups get 40 free minutes; Personal Premium is $8.99/month (10 hours/month) and Enterprise is $24.99 per seat/month (40 hours/month).

# 会議翻訳・AI同時通訳# 要約・翻訳# 議事録作成# 音声認識・音声合成# 字幕生成# 業務効率化# 日本語対応

クリスプ

Krisp

A noise-cancellation app from Krisp Technologies, Inc. (Berkeley, California, USA) that uses AI to remove background noise, other people's voices and echo from calls and meetings in real time. Because it sits between the microphone/speakers and the calling app on Mac and Windows, it cancels noise on both your side and the other side in any app, including Zoom, Teams and Google Meet. It also offers a bot-free AI note taker (recording, transcription, AI summaries and action items) and English accent conversion (transcription covers 16 languages and does not include Japanese, as of October 2026). Pricing includes a 7-day free trial, Core at $8/month and Advanced at $15/month (per user, billed annually). There are also plans for call centers and an SDK for developers.

# 音声認識・音声合成# 議事録作成# 音声合成・文字起こし# 業務効率化# 生産性向上

スクライブアシスト

ScribeAssist（AmiVoice）

A standalone AI meeting-minutes tool from Advanced Media, Inc. (Tokyo; TSE Growth-listed), the maker of the AmiVoice speech recognition engine, installed and run on Windows PCs. Without an internet connection, it handles recording, transcription and editing through to summarization by a generative AI running inside the PC (a local LLM), and it can be used in LGWAN environments. It supports speaker identification, word registration, live captions with furigana and Word-template export, and cloud summarization is also available. Pricing is open, a flat rate based on concurrent connections (individual quote, no initial cost), with a 14-day trial.

# 議事録作成# 音声合成・文字起こし# 音声認識・音声合成# 字幕生成# 要約・翻訳# 業務効率化# 日本語対応

スピーチファイ

Speechify

An AI text-to-speech reader app from Speechify, Inc. (Miami, Florida, USA). It reads PDFs, web pages, Google Docs, emails and photographed book pages aloud in 1,000+ natural AI voices at up to 5x speed, and also offers AI summaries and chat, voice typing and AI podcasts. Available on iPhone, Android, Chrome extension, web app, Mac and Windows, with the website and app displayable in Japanese. Free plan (up to 1.5x, 10 basic voices) and Premium at $29 per month or $139 per year (purchased on the official website).

# 音声生成# 音声認識・音声合成# 要約・翻訳# 生産性向上# 日本語対応

ファインボイス

FineVoice

An AI audio production platform from Fineshare (Hong Kong / Chengdu) that combines text to speech, voice cloning, AI voice design, a voice changer, sound effects, BGM, speech to text, and voice translation in one place. Offers 2,700+ voices and 154+ languages and accents, with a Japanese interface and Japanese voices. Available in the browser, as Windows/Mac apps, and via a developer API. Free plan available (output for non-commercial use only); paid plans start at Basic $8.99/month or $71.99/year ($5.99/month).

# 音声生成# 音声認識・音声合成# 音楽生成# 日本語対応

タイプレス

Typeless

An AI voice dictation app from Simply CA LLC (Palo Alto, California). It removes filler words such as "um", repeated words, and self-corrections from what you say, formats lists and steps, and inserts polished text right where your cursor is in Slack, Gmail, ChatGPT, and other apps. It supports 100+ languages, translates as you speak, and lets you rewrite selected text by voice. Available on Mac, Windows, Linux, iOS, and Android. The Free plan has a weekly word limit; Pro is US$12/month billed yearly or US$30 billed monthly.

# 音声認識・音声合成# 音声合成・文字起こし# 要約・翻訳# 生産性向上# 日本語対応

サクラノエーアイエンジン

さくらのAI Engine

SAKURA internet's inference API service that runs LLMs and other foundation models in data centers in Japan. Use gpt-oss-120b, Kimi, Qwen and more through OpenAI- and Anthropic-compatible APIs; text generation is free for up to 3,000 requests per month, with pay-as-you-go beyond that. A Private Edition that runs your chosen model on dedicated GPUs for a flat monthly fee (individually quoted) is also available.

# 生成AI（LLM）# API・SDK# 検索エンジン・RAG# 音声認識・音声合成# AIモデル構築・管理# 日本語対応

パパゴ

Papago

An AI translation service from NAVER Corp. of South Korea. It translates text, images (camera), voice, conversations, handwriting, documents (PDF and Office) and websites, works offline, and the app handles 14 languages including Japanese, Korean, English and Chinese. The web version (papago.naver.com) and the apps are free. The paid Papago Plus does not store translation data and starts at $9.99/month (Basic).

# 要約・翻訳# AI-OCR（文字認識）# 音声認識・音声合成# 日本語対応

ラインワークス エーアイノート

LINE WORKS AiNote

An AI meeting-minutes and transcription tool from LINE WORKS Corp. Record in-person meetings with the app, or let a bot join Zoom, Teams, Google Meet, Webex and LINE WORKS meetings, then get transcripts with speaker separation and AI summaries built from templates. It is the official successor to "CLOVA Note β". Free plan available; Solo from ¥1,440/month and Team from ¥19,800/month (annual contract, excl. tax).

# 議事録作成# 音声合成・文字起こし# 音声認識・音声合成# 業務効率化# 日本語対応

モノボット

Monobot

Monobot (Monobot.AI) is a no-code platform from TRING, Inc. in the US for building voice and chat AI agents for contact centers and businesses. The AI answers routine calls and chats such as appointment booking, order status checks and identity verification, and hands off to human agents with conversation data attached when needed. Its Workspace for human agents provides live AI hints, transcription, summaries and sentiment analysis during calls. Pricing is credit-based, starting with Starter at $200/month (voice $0.22–0.27 per minute). The interface is in English and other languages, with no Japanese support.

# ボイスボット# AIチャットボット# AIエージェント# ノーコード自動化# 音声認識・音声合成# BPO# 自動化・省力化

ミーテル

MiiTel

A voice analytics AI from RevComm Inc. (Chiyoda-ku, Tokyo). It automatically records and transcribes conversations on the phone (MiiTel Phone), in web meetings (MiiTel Meetings), face to face (MiiTel RecPod), and in call centers (MiiTel Call Center), and its AI analyzes speaking speed, talk ratio, back-and-forth exchanges, and more. With generative AI meeting notes and automatic logging to Salesforce, HubSpot, kintone, and other tools, it helps improve sales talk and reduce record-keeping work. Used by more than 3,000 companies. Pricing is not published on the official site (initial fee from ¥0; custom quote).

# セールス# 音声認識・音声合成# 議事録作成# 感情解析・表情分析# 業務効率化# 日本語対応

アイブリー

IVRy（アイブリー）

A phone auto-answering service from IVRy Inc. (Minato-ku, Tokyo) in which AI answers calls, listens to what the caller needs, and automatically takes reservations, answers frequently asked questions, and routes calls to the right person. Calls are recorded, transcribed, and summarized, with notifications sent by email, LINE, Slack, and more. Used by more than 60,000 accounts (as of May 2026). You can start on the Free plan (¥0/month, up to 30 incoming calls); paid plans are Starter from ¥3,980/month, Standard from ¥6,480/month, and Advanced from ¥10,480/month (excluding tax; phone number maintenance and usage-based fees are extra).

# ボイスボット# 音声認識・音声合成# 自動化・省力化# 業務効率化# コスト削減# 日本語対応

ソナファクト

SonaFact

SonaFact is a browser-based AI transcription, meeting-minutes and subtitle service operated by AKINT in Poland. It transcribes recordings and audio/video files in 100 languages, separates speakers automatically and underlines words it is unsure about. Every item in its AI-generated minutes, task lists, summaries and sales-call scorecards links to the matching moment in the recording, and items not tied to the recording are removed automatically. It also exports SRT/WebVTT subtitles with translation into up to 4 languages and files for NVivo, MAXQDA and ATLAS.ti. Processing takes place in the EU and recordings are not used to train AI. There is a free plan (3 files a day, up to 30 minutes each); paid plans start at ¥990 a month billed yearly (tax included).

# 議事録作成# 音声合成・文字起こし# 字幕生成# 要約・翻訳# 音声認識・音声合成# セールス# 業務効率化# 日本語対応

ボーゾ エーアイ

Vozo AI

An AI video translation and dubbing tool operated by Honeybee Technology Ltd in the US. It translates videos into 165 languages and accents, with voice cloning that recreates the speaker's voice (VoiceREAL), lip sync that matches mouth movements to the translated audio (LipREAL), Visual Translate for on-screen text such as slides and captions, and translated or bilingual subtitles. Japanese site and interface available. Free ($0, 20 trial points), Creator $29/month, Studio $99/month, Enterprise by quote. For users 18 and older.

# 要約・翻訳# 字幕生成# 動画生成# 音声生成# 音声認識・音声合成# 日本語対応

キャラクターエーアイ

Character.AI

A service by Character Technologies, Inc. (US) for chatting by text or voice call with more than 10 million AI Characters, most of them made by users. You can also create and publish Characters and make voices for them. Free with unlimited messaging; paid plans are (c.ai) lite from $4.99/month and c.ai+ at $9.99/month ($94.99/year). Age assurance is required, and chat is limited to users 18 and older.

# エンタメ／ゲーム・遊び# AIチャットボット# 生成AI（LLM）# 音声認識・音声合成# 日本語対応

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Alexa+（アレクサプラス）とは？日本で10月29日に早期アクセス開始｜料金（プライム会員は無料・会員以外は月額3,000円）・対応デバイス・申込方法

Amazonは2026年10月29日、生成AIを搭載した新しいアシスタント「Alexa+（アレクサプラス）」の早期アクセスを日本で始めました。早期アクセス中は無料で、終了後もプライム会員なら追加料金なし、会員以外は月額3,000円です。この記事では、アマゾンジャパンの発表とAmazon.co.jpの公式ページにもとづいて、今のAlexaとの違い、日本でできること・まだできないこと（食べログの予約や出前館・Uber Eatsとの連携は今後）、料金と未公表の点、対応するEcho・Fire TVと申込方法、注意点を整理します。