⚡ 簡単な評価:
- 価格: Synthesia starts at $18/month. Synthesys starts at $20/month.
- 最適な用途: Synthesia for training and localised video creation. Synthesys for voice generation and talking photos.
- 主な違い： Synthesia ships an AI screen recorder and interactive videos. Synthesys does not.
- 私たちのおすすめ： Synthesia (4.6) for most teams, based on its wider feature set and 140+ language support.
Two products, one letter apart, and very different jobs.
Synthesia started as an ai video creation platform for corporate training.
Synthesys started as a voice generation engine and grew outward from there.
That history still shapes what each one does well today.
Here is how the two compare on price, features, and fit.
概要
This Synthesia vs Synthesys comparison covers pricing, video editing tools, and ease of use.
弊社のライター陣は、両方のプラットフォームを実際に操作して検証しました。
それらのメモは、以下の「チームが気づいたこと」のセクションに記載されています。
The rest draws on published specs, documentation, and G2 reviews.
By the end you will know which tool fits your workflow.
Synthesiaとは何ですか?
Synthesia is an ai video creation platform built around ai avatars.
You type a script and pick a presenter.
The system renders a finished clip without a camera or studio.
Its avatars carry the most natural facial expressions and gestures in this category.
You can import PowerPoint プレゼンテーション and turn slides into narrated video.
Teams mostly use it for onboarding, product walkthroughs, and internal training.
The walkthrough below shows the editor and avatar library in action.
🏆 Winner: Synthesia
Script-to-video in a few minutes, with no filming. Supports 140+ languages for a broader audience. Built for teams that publish training video at volume.
シンセシアの価格
Synthesia runs on three tiers. Here is the breakdown.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| スターター | 月額18ドル | AI動画をテストするソロクリエイター |
| クリエイター | 月額64ドル | Marketing teams publishing weekly |
| 企業 | カスタム価格設定 | Mid-to-large firms needing SOC 2 and LMS delivery |
Pricing verified August 2026.
無料トライアル: Yes. A free demo video lets you test the editor before paying.
返金保証: No published refund window. Cancel before renewal to avoid the next charge.
📌 注記： Plans are metered by video minutes, not by seats alone. Heavy publishers hit minute caps before they hit user caps.
⚠️ Pricing conflict: Some third-party trackers list Synthesia at $29/month and Synthesys at $23/month. Our CSV records $18/month and $20/month. We publish the CSV figures and flag the gap rather than pick silently. Check the vendor page before you buy.
Synthesiaの主な利点
Here is what makes Synthesia worth a look:
- Language reach: Over 140 languages are supported. That matters if you localise for a broader audience.
- 1-click translation: A finished video can be re-voiced without a separate translation project. リップシンク follows the new track.
- Security posture: SOC 2 Type II compliance is in place. Mid-to-large firms usually require this before rollout.
- LMS delivery: Videos push into Learning Management Systems. Training teams skip manual re-uploads and save time.
- スクリーンレコーダー: Capture your screen inside the same tool. Software demos stay in one place.
- Interactive video: Add clickable elements to a finished clip. Useful for quizzes and branching training.
- テンプレートライブラリ: Editable templates cut setup work. You adjust rather than build from a blank canvas.
私たちのチームが気づいたこと
私たちの 作家 signed up for Synthesia and built several training clips from scratch. Here is what stood out from that hands-on time:
The clip below records that same session end to end.
Synthesiaの長所と短所
✅ メリット
- Avatars show the most natural facial expressions in this category
- Over 140 languages supported for global teams
- SOC 2 Type II compliance suits mid-to-large businesses
- Screen recorder and interactive videos are built in
- PowerPoint presentations convert into narrated video
❌ デメリット
- The jump from Starter to Creator is a large price step
- Video minutes are capped on every paid tier
- Timeline control is thinner than a traditional video editor
- Enterprise pricing is quote-only, so budgeting takes a sales call
Synthesysとは何ですか?
Synthesys is an artificial intelligence studio for voice and video.
Voice generation came first, and it is still the strongest part.
The library holds over 400 voices for cloning and specific tones.
AI Humans then puts those voices on screen with a presenter.
AI Talking Photos animates uploaded photos into short speaking clips.
Small teams use it to create content for ads and social posts.
This walkthrough covers the voice library and the video side together.
準優勝：シンセシス
Over 400 voices, plus gesture control for avatar motion. Talking Photos animate stills you already own. A fit for ad creative rather than long training.
シンセシスの価格
Synthesys also runs three tiers, with no custom quote at the top.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 個人的 | 月額20ドル | Solo creators doing voiceover work |
| クリエイター | 月額41ドル | フリーランサー mixing voice and ai video |
| 仕事 | 月額69ドル | Small teams shipping ad creative |
Pricing verified August 2026.
無料トライアル: A limited free tier lets you test voices before you commit.
返金保証: No blanket refund policy is published. Cancellation is handled from account settings.
📌 注記： The top Business tier costs $69/month, which still lands under Synthesia’s $64 Creator plan plus any overage. Compare by output volume, not headline price.
⚠️ 警告： G2 reviews flag subscription cancellation as a recurring friction point. Cancel from the dashboard and keep the confirmation email.
Synthesysの主な利点
Here is where Synthesys earns its place:
- Voice depth: Over 400 voices cover cloning and specific tones. That is the deepest part of the product.
- Gesture control: Dynamic gesture control fine-tunes how an avatar moves. You get more dynamic results than a static presenter.
- 話す写真： Still images become speaking clips. Useful when you have hd photos but no footage.
- Face form: Customization features let you adjust facial detail on a presenter.
- シンセシス・ラボ： A sandbox for testing output before you spend credits on a full render.
- 音声翻訳: Voice tracks convert across multiple languages without re-recording.
私たちのチームが気づいたこと
Our writer ran Synthesys through voiceover and talking-photo jobs over several sessions. Here is what stood out:
The recording below shows those steps in the live user interface.
Synthesysの長所と短所
✅ メリット
- Library of 400+ voices for cloning and tone matching
- Dynamic gesture control for avatar motion
- Talking Photos animate stills you already have
- Flat $69 Business price with no sales call needed
❌ デメリット
- Avatar realism trails Synthesia on close-up shots
- No screen recorder for software walkthroughs
- No published SOC 2 Type II certification
- Cancellation draws repeated complaints in reviews
機能比較
Both tools turn text into video. The difference shows up once you look at what surrounds that core step.
Here are ten areas that decide the Synthesia vs Synthesys 質問 for most buyers.
| 特徴 | シンセシア | シンセシス |
|---|---|---|
| 開始価格 | 月額18ドル | 月額20ドル |
| AIアバター | ✅ | ✅ |
| Voice Cloning Library | ✅ | ✅ 400+ voices |
| スクリーンレコーダー | ✅ | ❌ |
| インタラクティブビデオ | ✅ | ❌ |
| 話す写真 | ❌ | ✅ |
| Gesture Control | ❌ | ✅ |
| SOC 2 タイプ II | ✅ | ❌ |
| 言語サポート | 140+ | 複数の言語 |
| 最適な用途 | Training and localisation | Voiceover and ad creative |
1. AIアバター
シンセシア： The avatar library is the reason most buyers land here. Mouth shapes and facial expressions hold up on close crops, which is where cheaper tools break. You can also create custom models of a real presenter on higher tiers.
シンセシス： AI Humans covers the same ground with a smaller cast. Gesture control is the trade: you can fine-tune how a presenter moves, which gives more dynamic results in short ads. Close-up realism still trails Synthesia.
2. 音声生成
シンセシア： Text-to-speech is tied tightly to the avatar. Delivery is even and clear, which suits training narration. Fine tonal control is thinner than a dedicated voice tool.
シンセシス： This is the strongest column on the page. A library of 400+ voices covers cloning and specific tones, so you can match a brand voice instead of settling. If voice generation is the deliverable, Synthesys wins outright.
3. テンプレートとカスタマイズ
シンセシア： Editable templates cover onboarding, product updates, and policy briefs. Brand kits lock fonts and colours across a team. You adjust a starting point rather than building each video creation job from zero.
シンセシス： Generate AI Media handles images and clips inside the same workspace. Customization features lean toward creative assets rather than corporate layout. Fewer ready-made structures means more manual setup.
4. ビデオエディタ
シンセシア： The video editor is scene-based rather than timeline-based. Edits are quick, and a script change re-renders in a few seconds on short clips. Anyone expecting frame-level video editing tools will find it limited.
シンセシス： Text-to-video generation follows the same script-first pattern. Assembly is straightforward, though the editor gives you less layout control across longer sequences.
💡 プロのヒント: Neither tool replaces Premiere or Final Cut. Draft the ai video here, then finish colour and pacing elsewhere if the project demands it.
5. コラボレーションと共有
シンセシア： Comments, shared workspaces, and reviewer links are standard. Videos can push into a Learning Management System, so training reaches staff without a manual upload step.
シンセシス： Synthesys Lab acts as a testing sandbox before a full render. Team review is lighter, which suits a solo creator more than a ten-person department.
6. AI Assistant and Scripting
シンセシア： The AI Video Assistant drafts a script and scene order from a prompt or a document. It handles the blank-page problem, which is where most teams stall.
シンセシス： Face form focuses on presenter detail rather than scripting. You bring the copy yourself, then tune how the face and delivery look.
7. Screen Recording and Talking Photos
シンセシア： The AI Screen Recorder captures your screen next to an avatar. Software demos and support walkthroughs stay in one tool instead of two.
シンセシス： AI Talking Photos animates uploaded photos into speaking clips. Add more photos and you have a small cast without a shoot. There is no screen capture at all, which rules it out for product demos.
8. Translation and Language Support
シンセシア： Support runs past 140 languages, and 1-click translation re-voices a finished video. A localisation run that once needed a whole translation project now takes one pass.
シンセシス： Audio translations convert a voice track across multiple languages without re-recording. Coverage is narrower, so check your target list before committing.
9. Reach and Distribution
シンセシア： Interactive videos add clickable steps and quiz points inside a clip. For onboarding, that turns passive viewing into something you can measure.
シンセシス： Multilingual support is the main reach lever here. It helps you serve a broader audience, but there is no interactive layer on top.
10. 価格設定とコスト
Entry prices sit within $2 of each other. The gap opens at the middle tier.
| ティア | シンセシア | シンセシス |
|---|---|---|
| エントリ | スタータープラン — 月額18ドル | 個人向け — 月額20ドル |
| 中 | クリエイター — 月額64ドル | クリエイター — 月額41ドル |
| トップ | エンタープライズ向け - カスタム価格設定 | ビジネスプラン — 月額69ドル |
シンセシア： The $18 Starter is the cheapest door on this page. The $64 Creator plan is where the cost sits for real output, and Enterprise is quote-only. You pay more for compliance, language reach, and the screen recorder.
シンセシス： At $41/month the mid tier undercuts Synthesia’s Creator plan by $23. The $69 Business plan is a fixed number, so a small team can budget without a sales call.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| Corporate training video | シンセシア | LMS delivery and SOC 2 |
| Brand-matched voiceover | シンセシス | 400+ voices for cloning |
| Software demos | シンセシア | 内蔵スクリーンレコーダー |
| Animated stills | シンセシス | Talking Photos from images |
| Wide localisation | シンセシア | 140以上の言語、ワンクリック翻訳 |
| Fixed mid-tier budget | シンセシス | 月額41ドル対月額64ドル |
💰 あなたの予算
Entry tiers are nearly identical at $18 and $20. The real question is the middle tier, where Synthesys costs $41 against Synthesia’s $64.
🔌 あなたの技術スタック
Video tools are usually judged on how well they slot into the software you already run. Synthesia pushes into an LMS; Synthesys sits closer to your design and ad tools.
🎬 Your Output Type
Long explainers and policy videos favour Synthesia. Fifteen-second ad cuts and voice-led social clips favour Synthesys.
🎓 あなたの経験レベル
Neither tool needs editing skills, which is the point of ai video. Both let a beginner ship something watchable on day one and save time on filming.
🆓 無料トライアルとデモ
Some platforms in this category start at $0 and charge per use instead of monthly. Test a real script on both before you pick a plan.
🛟 Support and Compliance
Synthesia meets the security bar that mid-to-large firms ask for before rollout. Synthesys has no equivalent published certification.
切り替えガイド
Already paying for one of these? Here is what changes if you move.
🔄 SynthesiaからSynthesysに切り替えますか？
✅ 得られるもの：
- A 400+ voice library for cloning and tone matching
- Gesture control over how an avatar moves
- Talking Photos, plus a flat $69 top tier
❌ 失うもの：
- The AI screen recorder for software walkthroughs
- Interactive videos and LMS delivery
- 140+ language coverage and SOC 2 Type II
📋切り替え方法：
- Download finished MP4s and export your scripts from Synthesia
- Open a Synthesys account and rebuild one video as a test
- Rebuild your brand voice in the voice library, then cancel the old plan
🔄 SynthesysからSynthesiaへの移行をお考えですか？
✅ 得られるもの：
- Sharper avatars with better facial expressions
- Screen recording, interactive videos, and LMS export
- 140以上の言語に対応したワンクリック翻訳
❌ 失うもの：
- The 400+ voice library and its tone range
- Talking Photos built from stills
- A fixed $69 Business price with no quote process
📋切り替え方法：
- Export your audio tracks and scripts from Synthesys
- Start on Synthesia’s Starter plan and pick a matching avatar
- Rebuild one flagship video, check the translation output, then cancel
私たちのレビューで取り上げられなかったこと
This comparison focused on individual creators and small-to-mid teams. We did not test enterprise SSO, API access, or bulk seat licensing on either platform. Render speed varies with clip length and server load, so we avoid quoting fixed numbers. If you publish hundreds of videos a month, your cost per minute matters more than the headline plan price.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | シンセシス |
| 🎭 AIアバター | シンセシア |
| 🎙️ 音声生成 | シンセシス |
| 🎬 ビデオエディター | シンセシア |
| 🌍 Languages and Translation | シンセシア |
| 🔒 セキュリティとコンプライアンス | シンセシア |
| 👥 チームコラボレーション | シンセシア |
| 🏆総合優勝 | シンセシア |
🏆 優勝：シンセシア
Synthesia wins 5 of 7 categories.
最適な用途: employee training, localised product video, software demos, teams that need SOC 2
These two products are not really chasing the same buyer. Synthesia is a training and localisation engine. Synthesys is a voice studio that also makes video.
Synthesys is the better pick when the audio track is the product. The voice library is deeper, the mid tier costs $23 less, and gesture control adds motion that short ads benefit from.
For everything else, Synthesia takes it. Wider language support, a built-in screen recorder, interactive video, and a security posture that passes procurement. Both cut filming out of the process, which is the real saving either way.
Synthesiaの比較
Here is how Synthesia lines up against its closest rivals:
Synthesia vs ヘイジェン
Synthesiaが優れている点： language breadth past 140, LMS delivery, interactive video
HeyGenが勝利した点： faster avatar cloning turnaround, stronger short-form social output, lower entry commitment
Synthesia vs コロサイ
Synthesiaが優れている点： avatar realism, template depth, translation in one click
コロシアンの勝利： multi-avatar conversation scenes, branching scenario ビルダー, learner quiz scoring
Synthesia vs ヴィード
Synthesiaが優れている点： presenter quality, enterprise compliance, script-to-scene assistant
Veedが勝利した理由： timeline editing, subtitle and caption tooling, footage cleanup on real recordings
Synthesysの比較をもっと見る
And how Synthesys holds up elsewhere:
Synthesys vs Speechify
Synthesysが勝利した点： on-screen presenters, Talking Photos, gesture control
Speechifyが勝利した点： long-document reading, mobile listening, browser and PDF playback
Synthesys vs した
Synthesysが勝利した点： voice library size, fixed team pricing, in-app media generation
D-IDが勝利した点： real-time conversational agents, developer API depth, portrait animation fidelity
Synthesys vs フリキ
Synthesysが勝利した点： voice cloning control, presenter customisation, audio translation
フリキが勝利： blog-to-video conversion, stock footage matching, cheaper starting tier
よくある質問
Synthesiaよりも優れたものってあるのだろうか？
It depends on the job. HeyGen suits fast social clips, Colossyan suits branching training, and Synthesys suits voice-led work. For broad corporate video, none clearly beat it.
Synthesiaは完全に無料ですか？
No. A free demo video lets you test the editor, but continued use needs a paid plan. Pricing starts at $18/month on the Starter tier.
Synthesiaの有料版と無料版の違いは何ですか？
The free demo is a one-off preview with heavy limits. Paid plans unlock video minutes, the full avatar library, translation, and export without a watermark.
HeyGenとSynthesiaの違いは何ですか？
HeyGen leans toward quick avatar cloning and short social video. Synthesia leans toward training, 140+ languages, screen recording, and the compliance larger firms require.
What Synthesia can do?
It turns a script or slide deck into narrated video with an AIアバター, records your screen, translates finished clips, and pushes output into a learning system.
English 
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Arabic 
Russian 
Portuguese 
Japanese 
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Turkish 
Dutch 
Polish 
Indonesian 
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Vietnamese 