AsyncAI Voice API vs Sesame

Comparing the features of AsyncAI Voice API to Sesame

Feature
AsyncAI Voice API
Sesame

Capability Features

Advanced Speech Features
emotional inflectionrhythm controlmultilingual support
API Access
API Sample Rate Support
44100
API Streaming
Audio AI Features
end-to-end editingnoise cancellationAI-powered refinement
Comprehensive Documentation
Consistent Personality
Context Awareness
Conversational Dynamics
Conversational Speech Generation
Creative Suite Tools
PodcastingVideo AIAudio AIVoice AI
Dataset Size
1 million hours
Emotional Intelligence
Evaluation Suite
Infinite Voice Styles
Infinite
Lifelike Text-to-Speech
Low Latency
Model Sizes
Tiny: 1B backbone, 100M decoderSmall: 3B backbone, 250M decoderMedium: 8B backbone, 300M decoder
Multiple Speaker Handling
Objective Metrics
Word Error RateSpeaker SimilarityHomograph DisambiguationPronunciation Consistency
Partial Multilingual Support Planned
Planned for 20+ languages
Podcasting Features
audio enhancementnoise reductionvoice conversion
Pronunciation Correction
Quick Implementation
<10 minutes
Sequence Length
2048
Single-Stage Model
Subjective Metrics
Comparative Mean Opinion Score
Supported Language List
20+
Supported Use Cases
Customer ServiceGame DevelopmentDigital MarketingDigital PublishingPatient CommunicationConversion OptimizationConversational AI / AgentsGlobal ReachDigital Humans / AI AvatarsSupply ChainTalent AcquisitionInclusive Design
Text and Audio Input
TextAudio
Training Epochs
5
Uptime and Reliability
Video AI Features
intelligent video editingautomatic captioningvisual enhancement
Voice AI Tools
text-to-speechvoice cloning
Voice Cloning
Voice Cloning Sample Duration
3
Voice Library
1000
Voice Model Version
asyncFlow v1.0
Voice Output Emotional Styles
ExcitedNeutralWarm

Integration Features

API Implementation Languages
PythonJavaScriptcURL
API Output File Formats
WAVraw PCM (pcm_f32le)
GitHub Release
LLama Architecture Backbone
Mimi Split-RVQ Tokenizer
Platform Integrations
APIPythonJavaScriptcURL

Limitation Features

API Key Integration
Cannot Model Conversation Structure
English Language Dominance
Memory Bottleneck in Training
No Pre-trained Language Model Use
No Pricing Information
No Usage Quotas Stated
Real-Time Generation Delay
RVQ time-to-first-audio scales poorly

Pricing Features

Developer-friendly Pricing
Developer-friendly
Free Preview
Free Tier
Open Source
Apache 2.0