Speechify vs Captions AI: Best AI Video Generator in 2025?

執筆者 | 最終更新日 Oct 15, 2025

勝者
スピーチファイ
4.5
  • AI音声ジェネレータ
  • 音声クローン
  • ダビング
  • スキャン&リスニング
  • APIアクセスを取得する
  • 無料プランあり
  • Paid Plans from $11.58/month
準優勝
Captions AI logo
3.5
  • AI Creators
  • AI Shorts
  • AI Editor
  • AI Twins
  • Video Customization
  • No free Plan Available
  • 有料プランは月額9.99ドルから
Speechify vs Captions ai

Have you ever wished you could have your videos automatically captioned or even transformed into engaging audio?

That’s where AI-powered tools like Speechify and Captions AI come in!

They’re changing the game for content creators, students, and anyone who wants to 作る their videos more accessible.

But which one is right for あなた?

In this post, we’ll break down the key differences between Speechify vs Captions AI, exploring their features, pricing, and ease of use.

概要

To give you the most accurate comparison, we’ve put both Speechify and Captions AI to the test.

We’ve explored their features, analyzed their accuracy, and assessed their ease of use to help you make an informed decision.

スピーチファイ
4.55点満点中

Boost your productivity by 2x with Speechify! Speechify boasts Millions of downloads and a high rating. Experience the power of text-to-speech.

価格: It has a free plan. Paid plan starts at $11.58/month

主な特徴:

  • Text-to-Speech
  • Audio File Creation
  • Chrome拡張機能
captions ai logo
3.55点満点中

Ready to save time and create captivating videos? Captions AI can generate engaging captions in seconds.

価格: No free plan is available. premium plan Starts at $9.99/month

主な特徴:

  • Auto-Captioning
  • AIビデオ Editing
  • Eye Contact Correction

Speechifyとは何ですか?

Ever wish you could just listen to that long article instead of reading it?

ここで Speechify の出番です。

It’s a handy tool that reads digital text out loud for you.

Perfect for when you’re on the go, multitasking, or just prefer to listen.

また、私たちのお気に入りを探索してください Speechifyの代替品

Speechifyの紹介

私たちの見解

スピーチファイ

言葉を音声に変換して時間を節約してみませんか?Speechifyは数百万回のダウンロード数と高い評価を誇ります。人気の理由をぜひご確認ください。今すぐSpeechifyをお試しください!

主なメリット

  • 自然な音声: さまざまなアクセントや言語で、人間のような幅広い音声を提供します。
  • 使いやすさ: 任意のテキスト形式をアップロードするか、ブラウザ拡張機能を使用してテキストを即座に音声に変換します。
  • カスタマイズオプション: 読み上げ速度を調整し、さまざまな音声を選択し、読み上げながらテキストを強調表示します。
  • 統合: iOS、Android、Chrome、Safari などの一般的なアプリやデバイスで動作します。
  • 追加機能: 学習体験を強化するためのメモ作成および語彙ツールが含まれています。

価格

  • 無料で始める: $0
  • 年間: 月額 11.58 ドル (年払い)。
  • 毎月: 月額29.00ドル。
Speechifyの価格

長所

  • 非常にユーザーフレンドリーです。
  • 学習とアクセシビリティに最適です。
  • 幅広い音声とカスタマイズ オプション。
  • 手頃な価格の年間サブスクリプション。
  • 生産性を向上します。

短所

  • 無料プランには制限があります。
  • 他のプラットフォームほど高度な機能は多くありません。
  • 一部の声は他の声よりも不自然に聞こえます。
  • 時々不具合が発生します。

What is Captions AI?

Have you ever wished for a tool that could whip up videos in the blink of an eye?

That’s Captions AI! It’s an AIビデオ 本当にユーザーフレンドリーなジェネレーターです。

You type in your script, pick an AIアバター, and boom – you have a video.

It’s perfect for creating content for ソーシャルメディア, your website, or even internal comms. Pretty cool, huh?

また、私たちのお気に入りを探索してください Captions AI alternatives

captions ai homepage

私たちの見解

captions ai logo

Ready to save time and create captivating videos? Captions AI can generate engaging captions in seconds. Try Captions AI today and see the difference for yourself!

主なメリット

  • Automatic captions in 120+ languages: Make your content accessible to everyone.
  • AI搭載 video editing tools: Effortlessly enhance your videos.
  • Studio-quality virtual backgrounds: No green screen needed.

価格

  • Pro: $9.99/mo- Unlock their core AI-powered editing features and create videos faster.
  • マックス: $24.99/mo- 1200 credits/month for letting AI edit videos.
  • 規模: $69.99/mo- 3600 credits/month for unlock priority support.
  • 企業: カスタム価格設定。
Captions AI pricing

長所

  • Accurate and fast captioning.
  • Intuitive video editing tools.
  • Time-saving features.
  • 手頃な価格。
  • Improves video quality.

短所

  • Limited customization for captions.
  • Can be slow to process long videos.
  • Some features require a strong internet connection.
  • Free trial has usage limits.

機能比較

Speechify is the leading text to speech app, specializing in converting written content; Captions AI is a specialized ビデオエディター using speech recognition to add impressive subtitles.

1. Primary Functionality

The main service offered to users in the world.

  • Speechify: The core functionality is turning text into natural sounding speech, converting virtually any digital written text into audio for easy consumption.
  • Captions AI: The core functionality is highly accurate speech recognition and generation of dynamic subtitles and captions for pre-recorded video, which is helpful for social media.

2. High Quality AI Voices and Voice Generator

The breadth and realism of the synthetic voice options.

  • Speechify: Is known as the best ai voice generator, featuring a wide array of over 1000+ natural voices, including celebrity options, for creating professional voiceovers.
  • Captions AI: The ai voice ジェネレータ is available within its Studio product for voiceovers and dubbing, but its main strength is adding polished text to existing audio.

3. Target Audience and Accessibility

The primary user base that each platform is designed to impress and help.

  • Speechify: The target audience includes students and professionals, and it is a helpful tool for users with reading difficulties or visual impairments, as it converts written text to audio.
  • Captions AI: The target audience is content creators and marketers who need to create engaging video content with subtitles for a global audience on platforms like ティックトック and Instagram.

4. Content Input and Source

The form of the content that users give the artificial intelligence to process.

  • Speechify: Users input a wide array of documents, web pages, PDFs, and written text for conversion into spoken words.
  • Captions AI: Users primarily upload a video file containing spoken audio, which the artificial intelligence processes to generate the on-screen transcription.
speechify voice cloning

5. Speech Recognition and Transcription

The ability to accurately convert spoken audio into written text.

  • Speechify: Offers a transcription feature (Speechify Transcription) with high accuracy, enabling users to convert audio files into written text for notes or repurposing.
  • Captions AI: Excels in this area, using advanced speech recognition technology to deliver lightning-fast and highly accurate transcription to create dynamic subtitles in real time.

6. Translation and Multiple Languages

The features that enable communication in multiple languages.

  • Speechify: Supports over 60 multiple languages for テキスト読み上げ conversion, and its Studio product offers AI dubbing for video translation.
  • Captions AI: Offers instant translation of subtitles into various languages, ensuring video content is accessible to a global audience.

7. Speed and Efficiency

How quickly the artificial intelligence can generate the desired output.

  • Speechify: Can generate audio from written text in a few seconds and allows users to listen at up to 4.5x the average reading speed.
  • Captions AI: Converts audio to subtitles in a few seconds, with the speed of its editing and dynamic captioning being a major advantage for creators.

8. Playback and Reading Features

The specialized tools for consuming information.

  • Speechify: Standout features include adjustable reading speed, visual text highlighting, and the ability to take notes, making it a powerful personal reading assistant.
  • Captions AI: The core playback feature is the dynamic, word-by-word subtitle display, which is an impressive feature for video engagement.
captions ai

9. Voice Cloning and Personalization

The advanced ability to replicate a specific voice.

  • Speechify: Offers voice cloning as an advanced feature in its professional tiers, allowing users to create personal, unique professional voiceovers.
  • Captions AI: Offers AI voice cloning as part of its full video studio to create professional voiceovers and localized dubs.

10. Platform Access and Interface

The environment in which users interact with the application.

  • Speechify: Accessible across all platforms via a browser extension, web site, and dedicated apps, providing seamless access to written content everywhere.
  • Captions AI: Primarily operates as a mobile-first application (with a desktop app), designed for quick, visual editing of video clips for social media on the go.

11. Side by Side Comparison of Video Focus

The overall comparison of the primary role of each tool in the video world.

  • Speechify: The primary focus is audio generation and reading assistance; its video tools (Studio) are complementary to its natural voice generator core.
  • Captions AI: The primary focus is video editing and enhancing video content with professional subtitles, using artificial intelligence as the power behind its features.

AI ビデオジェネレーターを選択する際に注意すべき点は何ですか?

Choosing the right AI video ジェネレータ can feel overwhelming, given the many options available. Here’s a comprehensive checklist to guide your decision:

  • Your Needs and Goals: Start by clearly defining your video objectives. Are you creating marketing videos, explainer videos, educational content, or social media posts?
  • Features: Identify the features that are very essential for your workflow. Do you need AI avatars, text-to-speech capabilities, screen recording, or advanced editing options?
  • カスタマイズオプション: How much flexibility do you need to personalize your videos? Look for platforms that prefer a wide range of customization options for templates, avatars, 、などなど。
  • Output Quality: Determine the desired resolution and video quality for your final output. Check if the platform supports HD or 4K resolution.
  • 価格: Evaluate the platform’s pricing structure. Does it offer a free trial or a free plan? Do the paid plans align with your budget and usage requirements?
  • カスタマーサポート: Consider the level of customer support provided by the platform. Do they offer email support, live chat, or phone support?
  • 統合と互換性: Check if the platform integrates with other software you use, such as marketing オートメーション platforms or social media scheduling tools.
  • 安全 and Privacy: Ensure the platform has robust security measures in place to protect your data and content.
  • スケーラビリティ: Consider whether the platform could scale with your needs as your video production grows.

最終評決

For us, Speechify takes the crown.

Its versatility and focus on audio content creation, including features like AI voices and voice cloning, give it a slight edge.

However, if your main goal is generating accurate captions for video content quickly and efficiently, Captions AI is an excellent choice.

Remember it, the best tool depends on your individual needs and priorities.

We encourage you to try both Speechify and Captions AI (most offer free trials or plans!) to experience their features firsthand.

By testing them out yourself, you can confidently choose the perfect AI-powered solution to elevate your content creation game.

Speechify Compared

以下は、Speechify とその代替製品との簡単な比較です。注目すべき機能を強調しています。

  • SpeechifyとPlay htの比較: Speechify emphasizes speed reading, while Play ht provides lifelike, accurate voice cloning and a vast voice library.
  • Speechify vs Murf: Speechify prioritizes accessibility with features like dyslexia-friendly fonts and adjustable reading speeds, and is widely available across devices, while Murf offers a larger voice library (120+ voices) and integrated video editing.
  • Speechify vs Lovo: Speechify offers broader accessibility features, while Lovo AI excels with emotionally expressive AI voices and extensive multilingual options.
  • Speechify と Descript: Speechify focuses on text-to-speech, while Descript uniquely edits audio/video via text and offers realistic Overdub, a different approach.
  • Speechify vs ElevenLabs: Speechify focuses on speed and ease of use, while ElevenLabs generates highly natural AI voices with advanced cloning and emotional range.
  • Speechify vs Listnr: Speechify focuses on versatile text-to-speech, while Listnr offers podcast hosting and AI voice cloning alongside natural voiceovers.
  • Speechify vs Podcastle: Speechify focuses on text consumption, while Podcastle provides AI-powered podcast recording and editing, a different niche.
  • Speechify vs Dupdub: Speechify focuses on text-to-audio conversion, while Dupdub specializes in expressive talking avatars and AI video creation, a broader scope.
  • Speechify vs WellSaid Labs: Speechify offers user-friendly speed reading, while WellSaid Labs delivers consistently professional-grade AI voices with detailed customization.
  • SpeechifyとRevoicerの比較: Speechify focuses on general text-to-speech, while Revoicer offers advanced AI voice cloning and customization with SSML support, going beyond.
  • SpeechifyとReadSpeakerの比較: Speechify targets individual and broader use, while ReadSpeaker focuses on enterprise-level accessibility with natural text-to-speech.
  • Speechify vs NaturalReader: Speechify emphasizes natural-sounding voices and speed, while NaturalReader supports more languages and offers OCR, distinguishing it.
  • Speechify vs Altered: Speechify focuses on text-to-audio, while Altered offers innovative AI voice cloning and real-time voice changing, a unique feature set.
  • Speechify vs Speechelo: Speechify provides general text-to-speech utility, while Speechelo focuses on natural-sounding AI voices with punctuation awareness for marketing.
  • Speechify と TTSOpenAI: Speechify focuses on speed-reading, while TTSOpenAI achieves high human-like voice clarity with customizable pronunciation.
  • Speechify vs Hume AI: Speechify is for text-to-speech conversion, while Hume AI analyzes emotion in voice, video, and text, a distinct capability.

Captions AI Compared

Here’s a brief comparison with its alternatives:

  • Captions AI vs Synthesia: Captions AI focuses on captioning; Synthesia creates high-quality professional AI avatar videos.
  • Captions AI vs Colossyan: Captions AI provides captions; Colossyan offers AI avatars and text-to-video generation.
  • Captions AI vs Veed: Captions AI specializes in captioning; Veed is a comprehensive online video editor with AI features.
  • Captions AI vs Elai: Captions AI focuses on captions; Elai generates videos from text/URLs with AI presenters.
  • Captions AI vs Vidnoz: Captions AI provides captions; Vidnoz offers a range of AI video creation tools including more avatars.
  • Captions AI vs Deepbrain: Captions AI focuses on captioning; Deepbrain AI specializes in highly realistic AI avatars for video.
  • Captions AI vs Synthesys: Captions AI provides captions; Synthesys creates videos with realistic AI voices and avatars from text.
  • Captions AI vs Hour One: Captions AI focuses on captioning; Hour One generates videos with realistic virtual presenters.
  • Captions AI vs D-id: Captions AI provides captions; D-id animates still photos into talking heads.
  • Captions AI vs Virbo: Captions AI focuses on captioning; Virbo offers text-to-video and AI avatars directly.
  • Captions AI vs Vidyard: Captions AI provides captions; Vidyard is a platform for video hosting, analytics, and business use.
  • Captions AI vs Fliki: Captions AI specializes in captioning; Fliki converts text to video with many voices and stock media.
  • Captions AI vs Speechify: Captions AI provides captions for videos; Speechify is a text-to-speech tool.
  • Captions AI vs Invideo: Captions AI focuses on captioning; Invideo is a comprehensive video editor with templates and AI features.
  • Captions AI vs Creatify: Captions AI provides captions; Creatify targets AI video generation for marketing ads.

よくある質問

Is Speechify better than Captions AI?

It depends on your needs! Speechify is better for audio content creation with AI voices, while Captions AI excels at video captioning.

Can I try Speechify or Captions AI for free?

Yes, both Prefer free trials or free plans with limited features, allowing you to test them before subscribing.

Does Captions AI offer AI voices like Speechify?

Captions AI primarily focuses on generating captions, while Speechify offers a wider range of AI voice options.

What languages do Speechify and Captions AI support?

Both tools support multiple languages for their respective features, catering to a global audience.

Can I use Speechify and Captions AI together?

Absolutely! You can use Captions AI to generate captions for your videos and then use Speechify to convert those captions into audio format.

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