AivisSpeech vs StoryFile

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-09-01
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At a glance

DimensionAivisSpeechStoryFile
PricingFree (desktop) + Cloud API free trial, then usage-based or monthlyContact sales (enterprise)
Core TechnologyGenerative TTS with emotional quality, Style-Bert-VITS2 engineReal video responses from filmed interviews with AI indexing
Primary Use CaseVideo narration, voice drama, LLM-based dialogue AIMuseum exhibits, legacy preservation, digital twins for public figures
Target UserVideo creators, voice actors, developers, enterprisesInstitutions, museums, families preserving legacy
Key IntegrationsYMM4, VOICEVOX, AivisHub, Aivis Cloud API, CitorasCustom hardware (HOLOGLASS), professional filming services
DeploymentLocal desktop (Windows/Mac), cloud API, on-premise (Citoras)On-premise interactive exhibits, cloud-based digital twins

Choose StoryFile if you need authentic, filmed conversational AI for historical or legacy preservation with institutional credibility; choose AivisSpeech if you need flexible, high-quality generative TTS for content creation or dialogue systems, especially in Japanese, with strong local and cloud options.

AivisSpeech
AivisSpeech

無料で使える感情豊かな日本語音声合成TTS。ローカル、Cloud API、オンプレミスに対応。

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StoryFile
StoryFile

Conversational video AI that turns real filmed interviews into lifelike, interactive dialogues.

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Pricing
Freemium
Contact Sales
Plans
$0
$0
従量課金制
月額定額
月額制(要問合せ)
Popularity
2 views
7.3k views
Skill Level
Beginner-friendly
Beginner-friendly
API Available
Platforms
DesktopAPI
WebMobile
Categories
🎙️ Voice & Speech
🧑‍🎤 AI Avatars & Talking Video🎭 AI Companions & Character Chat
Features
無料のデスクトップTTS(Windows/Mac対応)
CPUのみで動作(GPU不要)
感情豊かで高品質な日本語音声合成
VOICEVOX互換UIとHTTP API
YMM4(ゆっくりムービーメーカー4)連携
AivisHubからのワンクリックモデルインストール
文単位での話速・テンポ・アクセント調整
ユーザー辞書による読み・アクセントカスタマイズ
AIVM/AIVMXオープンファイルフォーマット対応
Style-Bert-VITS2からAIVM変換(ONNX対応)
Aivis Cloud API:最速0.3秒の低遅延音声合成
クラウドAPIでプライベートモデル非公開運用可能
従量課金と定額月額プランの両方選択可能
オンプレミス製品Citoras(月額制)
商用利用可能(基本的にクレジット表記不要)
Cinematic interview recording
AI indexing of responses
Real-time voice interaction (hold-to-talk)
Text-based Q&A with hints
Authentic video responses from real footage
HOLOGLASS 3D holographic display
Lookalike DIY generative avatar
Digital likeness directive compliance
Web and mobile playback
Interactive exhibit integration
Enterprise-grade legacy capture
Family legacy preservation
Digital twin creation for public figures
Context-aware response retrieval
Integrations
ゆっくりムービーメーカー4 (YMM4)
VOICEVOX
AivisHub
AivisBuilder
AIVM Generator
Aivis Cloud API
Citoras

What real users say: AivisSpeech vs StoryFile

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

AivisSpeech

43 mentions across 3 sources · 33% positive — critical

YouTube, Bluesky, GitHub

What users praise

  • Free to use with both local and cloud options.
  • High-quality, expressive voice synthesis running on CPU.
  • Compatible with Voicevox UI and HTTP API.
  • One-click installation of community and official voice models.

What frustrates them

  • Default voice model was trained on unauthorized voice data.
  • Engine often fails to start on first launch.
  • GPU support on Mac is buggy, limiting performance.
  • SRT subtitle export feature is missing.

Researched Jul 6, 2026

StoryFile

7 mentions across 1 sources · 60% positive — mixed

YouTube

What users praise

  • Filmed interviews capture authentic tone and mannerisms for believability.
  • Real-time voice interaction feels natural and engaging.
  • Text-based interaction with hints makes it accessible for all visitors.
  • Ideal for museums and cultural exhibits, as seen with WWII museum.

What frustrates them

  • Extremely expensive—reported $33,000 per day entry fee.
  • Long lead time from filming to indexing, not quick.
  • Requires professional filming, not a DIY tool for most.
  • Cost makes it inaccessible for typical families or small nonprofits.

Researched Aug 28, 2026

Who should pick which

  • Museum curator
    Pick: StoryFile

    StoryFile creates authentic, narrated interactive exhibits using real historical figures, as proven at the National WWII Museum and Japanese American National Museum.

  • Video creator needing Japanese narration
    Pick: AivisSpeech

    AivisSpeech integrates with YMM4, offers emotional TTS, and runs locally for free, ideal for voiceovers and commentary.

  • Family legacy preservation
    Pick: StoryFile

    StoryFile's interview-based system captures real family stories with emotion, creating a digital heirloom that future generations can interact with.

  • LLM-based dialogue AI developer
    Pick: AivisSpeech

    AivisSpeech's low-latency cloud API (0.3s) and private model support make it perfect for real-time voice responses in conversational AI.

  • Enterprise needing on-premise TTS
    Pick: AivisSpeech

    AivisSpeech offers Citoras on-premise product for data-sensitive deployments, while StoryFile requires cloud or on-site exhibit hardware.

Frequently Asked Questions

AivisSpeech vs StoryFile: which should you choose?

Choose StoryFile if you need authentic, filmed conversational AI for historical or legacy preservation with institutional credibility; choose AivisSpeech if you need flexible, high-quality generative TTS for content creation or dialogue systems, especially in Japanese, with strong local and cloud options.

Can StoryFile generate responses not recorded in the interview?

No, StoryFile only responds with pre-recorded footage indexed by AI. For entirely synthetic responses, consider StoryFile's Lookalike generative avatar or AivisSpeech.

Does AivisSpeech support languages other than Japanese?

Currently, AivisSpeech is centered on Japanese. The models and voice data are primarily Japanese, though the engine might process other languages with limited quality.

What hardware does StoryFile require?

StoryFile can be deployed as a digital twin accessible via web or within kiosks. They also offer HOLOGLASS, a 3D holographic display for lifelike physical presence.

Is AivisSpeech free for commercial use?

Yes, many models use ACML/ACML-NC/CC0 licenses that allow commercial use without credit. Always check each model's license on AivisHub.

Can I create my own voice model with AivisSpeech?

Yes, using AivisBuilder (in development) or AIVM Generator, you can create custom voice models from your recordings and share them via AivisHub.

How does StoryFile's digital twin for public figures work?

Subjects record hundreds of conversational responses. AI indexes them and maps query intents to the best video answer, enabling natural dialogue. Example: Kara Swisher's CNN digital twin.

Does AivisSpeech require internet?

The desktop app works fully offline. For the cloud API features, internet is needed. Local synthesis uses only CPU and no GPU required.

Which tool is better for real-time interactive exhibits?

StoryFile is purpose-built for interactive exhibits with real video responses and hardware like HOLOGLASS. AivisSpeech can power voice interfaces but lacks video output.

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Last reviewed: July 6, 2026