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OpenAI Text To Speech
Compared to Vapi
OpenAI Text To Speech vs Vapi
Comparing the features of OpenAI Text To Speech to Vapi
Feature
OpenAI Text To Speech
Vapi
Capability Features
A/B Experiments
Age Selection
AI Guardrails
API Access
API Configurability
4.2K+ configuration points
API-First Architecture
Audio Settings
Audio Speed Setting Range
1
Automated Test Execution
Automatic Scalability
Millions of calls
Bookmark Page
Bring Your Own Models
Community Support
13000
Country Selection
Create Speech Button
Custom Phone Number
Custom Voice Selection
Alloy
Echo
Fable
Onyx
Nova
Shimmer
Ash
Coral
Sage
Dedicated Deployment Engineer
Documentation
Enterprise Compliance
SOC2
HIPAA
PCI
Favorite Voice Option
Gender Selection
High Quality Voices
Inbound Calls
Integrated Audio Player
Multi-language Support
100+ languages
No-code/Low-code Workflow
Outbound Calls
Prebuilt Templates
1000s
Reset Filters
Sample Playback
Text to Speech
Tool Calling
Ultra-low Latency
Sub-500ms
Uptime SLA
99.99% uptime
Voice Characteristics
Neutral
Professional
Clear
Warm
Friendly
Engaging
Energetic
Expressive
Mature
Experienced
Young
Old
Female
Male
Lively
Vibrant
Dynamic
Cheerful
Community-oriented
Wise
Calm
Knowledgeable
Integration Features
API Integrations
Client SDK
React (web SDK)
Downloadable SDK ZIP
Github Repository
Integrations Information
40+ apps
OpenAI Integration
openai
gpt-4o
Server SDKs
TypeScript
Python
cURL
Limitation Features
No Built-in Telephony Provider Mentioned
No Explicit Pricing Details
No Explicit Usage Quotas Listed
No File Format Support Listed
Pricing Information
Processing Delay
Video Tutorial Requirement
Watch 30 seconds
Pricing Features
Free Tier