機能比較
ElevenLabsは業界をリードするAIオーディオプラットフォームで、5,000以上のリアルなAI音声を提供しています。これはAmazon Pollyの50倍の選択肢です。75msという非常に低いレイテンシーと優れた音声カスタマイズ機能を備え、会話型AI、ボイスAIアプリケーション、プレミアムコンテンツ制作に最適です。
ElevenLabs
Voice quality
Highly natural, human-like voices with rich emotional expressiveness, often indistinguishable from real speech.
Latency
Very fast TTS (~75ms for flash model & ~300ms for highest quality); great for real-time and conversational use.
Languages supported
32 languages
Customization
Advanced controls for voice style (speed, stability, similarity, style). Ability to create entirely new voices.
Voice cloning
Yes – instant cloning with ~10s of audio, or high-fidelity clones with longer samples.
Voice library
5,000+ curated, high-quality voices
Pricing
Transparent per-character pricing
Pronunciation accuracy
Built-in prosody support & SSML with custom pronunciation
Custom Lexicon
Yes, custom dictionaries for brand names, etc.
Amazon Polly
Voice quality
Robotic or neutral tone; less emotional range.
Latency
Responsive but can vary (~100ms - 1s) + network time.
Languages supported
29 languages
Customization
Basic SSML adjustments
Voice cloning
Voice library
100
Pricing
Complex pricing (per-million, varying costs per voice)
Pronunciation accuracy
Partial or basic SSML support
Custom Lexicon
Features
ElevenLabs
Amazon Polly
Voice quality
Highly natural, human-like voices with rich emotional expressiveness, often indistinguishable from real speech.
Robotic or neutral tone; less emotional range.
Latency
Very fast TTS (~75ms for flash model & ~300ms for highest quality); great for real-time and conversational use.
Responsive but can vary (~100ms - 1s) + network time.
Languages supported
32 languages
29 languages
Customization
Advanced controls for voice style (speed, stability, similarity, style). Ability to create entirely new voices.