OpenAI Realtime API vs Voiser AI Transcription & Text‑to‑Speech

Comparing the features of OpenAI Realtime API to Voiser AI Transcription & Text‑to‑Speech

Feature
OpenAI Realtime API
Voiser AI Transcription & Text‑to‑Speech

Capability Features

Accuracy Rate
Up to 100%
Advanced Editor
Automatic Punctuation
ChatGPT Summary Creation
Data Protection
Enterprise Privacy Commitment
Expanded Model Support Planned
Five New Voices
5
Flexible Download Options
WordExcelTextSubtitle
Function Calling
Grouping Transcriptions
Human and Automated Safety Monitoring
Interruption Handling
Language List
Arabic (Algeria)Arabic (Bahrain)Arabic (Egypt)Arabic (Iraq)Arabic (Israel)Arabic (Jordan)Arabic (Kuwait)Arabic (Lebanon)Arabic (Libya)Arabic (Morocco)Arabic (Oman)Arabic (Qatar)Arabic (Saudi Arabia)Arabic (Palestinian)Arabic (Syria)Arabic (Tunisia)Arabic (United Arab Emirates)Arabic (Yemen)Bulgarian (Bulgaria)Catalan (Spain)Chinese (Cantonese, Traditional)Chinese (Mandarin, Simplified)Chinese (Taiwanese Mandarin)Croatian (Croatia)Czech (Czech Republic)Danish (Denmark)Dutch (Netherlands)English (Australia)English (Canada)English (Ghana)English (Hong Kong)English (India)English (Ireland)English (Kenya)English (New Zealand)English (Nigeria)English (Philippines)English (Singapore)English (South Africa)English (Tanzania)English (United Kingdom)English (United States)Estonian(Estonia)Filipino (Philippines)Finnish (Finland)French (Canada)French (France)French (Switzerland)German (Austria)German (Germany)Greek (Greece)Gujarati (Indian)Hebrew (Israel)Hindi (India)Hungarian (Hungary)Indonesian (Indonesia)Irish(Ireland)Italian (Italy)Japanese (Japan)Korean (Korea)Latvian (Latvia)Lithuanian (Lithuania)Malay (Malaysia)Maltese (Malta)Marathi (India)Norwegian (Bokmål, Norway)Polish (Poland)Portuguese (Brazil)Portuguese (Portugal)Romanian (Romania)Russian (Russia)Slovak (Slovakia)Slovenian (Slovenia)Spanish (Argentina)Spanish (Bolivia)Spanish (Chile)Spanish (Colombia)Spanish (Costa Rica)Spanish (Cuba)Spanish (Dominican Republic)Spanish (Ecuador)Spanish (El Salvador)Spanish (Equatorial Guinea)Spanish (Guatemala)Spanish (Honduras)Spanish (Mexico)Spanish (Nicaragua)Spanish (Panama)Spanish (Paraguay)Spanish (Peru)Spanish (Puerto Rico)Spanish (Spain)Spanish (Uruguay)Spanish (USA)Spanish (Venezuela)Swedish (Sweden)Tamil (India)Telugu (India)Thai (Thailand)Turkish (Turkey)Vietnamese (Vietnam)Afrikaans (South Africa)Albanian (Albania)Amharic (Ethiopia)Armenian (Armenia)Azerbaijani (Azerbaijan)Basque (Spain)Bengali (India)Burmese (Myanmar)Czech (Czech)Dutch (Belgium)French (Belgium)Galician (Spain)Georgian (Georgia)German (Switzerland)Icelandic (Iceland)Irish (Ireland)Italian (Switzerland)Javanese (Indonesia)Kannada (India)Kazakh (Kazakhstan)Khmer (Cambodia)Lao (Laos)Macedonian (North Macedonia)Mongolian (Mongolia)Nepali (Nepal)Persian (Iran)Serbian (Serbia)Sinhala (Sri Lanka)Swahili (Kenya)Swahili (Tanzania)Ukrainian (Ukraine)Uzbek (Uzbekistan)Zulu (South Africa)
No Training on Data Without Permission
Playground Access
Profanity Filtering
Prompt Caching Planned
Public Beta
Reference Client Available
Six Preset Voices
6
Speaker Identification
Speech-to-Speech
Streaming Audio Inputs/Outputs
Subtitle Customization
Subtitle Export
Supported Language List
75
Supported Utilization Areas
Call CentersJournalistsHealthcareLawyersMedia and BroadcastingPodcastsGovernmentResearchersInterviewsStudentsMeetingsSubtitle
Supported Voices
550
Supports Text and Audio Inputs
TextAudio
Text to Speech
Timestamps
Translation Support
129
Ultra Low Latency
User-Friendly Controls
WebSocket Connection
YouTube Link Transcription

Integration Features

Agora Integration
Chat Completions API Integration
Downloadable File Formats
TxtDocxXlsxSrt
File Formats Supported
MP3WAVM4AMOVMP4
LiveKit Integration
OpenAI Node.js SDK Planned
OpenAI Python SDK Planned
Supports GPT-4o
gpt-4o-realtime-preview
Twilio Voice API Integration

Limitation Features

AI Disclosure Requirement
Audio Only Modality (Initially)
Lower Session Limits Tiers 1-4
Lower than 100
No Explicit Trial Period
No Mention of API
No Mention of Max File Size
No Pricing Details Listed
No Simultaneous Session Limit Anymore
Simultaneous Sessions Limit Tier 5
100
Usage Policy Restriction

Pricing Features

Approximate Audio Input Price
$0.06/minute
Approximate Audio Output Price
$0.24/minute
Free Tier
No Free Tier
Pricing Audio Input
$100/1M tokens
Pricing Audio Output
$200/1M tokens
Pricing Cached Audio Input
$20/1M tokens
Pricing Cached Text Input
$2.50/1M tokens
Pricing Text Input
$5/1M tokens
Pricing Text Output
$20/1M tokens