Compare Azure AI Speech
Details side-by-side comparison of Azure AI Speech against top competitors.
Detailed Comparison
Azure AI Speech
Text-to-speech in Microsoft's Azure AI Speech service, with standard, HD and custom voices
TTSAPICloud
Unreal Speech
Low-cost text-to-speech API with streaming and per-word timestamps
TTSAPIStreaming
Pricing
| Model | Pay-as-you-go, per character | Subscription by characters, with free plan |
| Starting Price | Not stated on the page we checked | $49/mo (Basic list price) |
| Has Free Version | ||
| Plan Summary | Free (F0) Neural: 0.5 million characters a monthPaid rates per 1M characters: dollar amounts not stated on the page we checked | Free $0: 250K characters (pricing page) or 1M (home page)Basic $49/mo, 3M charactersPlus $499/mo, 42M charactersPro $1,499/mo, 150M charactersEnterprise $4,999/mo, 625M characters |
Other Specifications
| Product Type | Text-to-SpeechAPI | Text-to-SpeechAPI |
Language Support
| Languages Supported | 100+ languages and locales (standard voices, Microsoft Learn) | 8 languages (vendor figure) |
Voice Quality
| Quality Rating | Not stated on the page we checked | Not stated on the page we checked |
| Tonal Description | Standard neural voices, HD voices, custom and personal voices | Not stated on the page we checked |
Voice Count
| Total Voices | Not stated on the page we checked | 48 |
| Categories | Standard neural, HD, custom, personal | Not stated on the page we checked |
Ease of Use
| Usability Rating | Developer-oriented (SDK, REST) | Developer-oriented (API) |
| User Experience | Audio Content Creation tool in Speech Studio for no-code use | Not stated on the page we checked |
Integrations
| API Availability | Yes, Speech SDK, REST API and batch synthesis API | Yes, four endpoints |
| Platform Integrations | N/A | N/A |
Use Cases
| Primary Use Cases | Chatbots and voice assistantsAudiobooksIn-car navigation | N/A |
| Applications | As listed on Microsoft Learn | Not stated on the page we checked |
Text to Speech Features
| SSML Support | N/A | |
| API Access | ||
| Multi Language | ||
| Emotional Impulse | N/A | N/A |
| Voice Cloning | No |
Character/Word Limits
| Plan Limits | Per-character billing; Chinese characters count as two | Characters per month by plan; roughly 750 characters per minute of audio per the vendor |
| Monthly Limit | Free (F0) Neural: 0.5 million characters a month | Free: 250K (pricing page) or 1M (home page) characters |
Commercial Rights
| Included | N/A | |
| Licensing Terms | Not stated on the page we checked | Home page: audio can be used commercially; attribution required on the free plan only. The terms page does not explicitly address generated audio. |
File Formats
| Supported Formats | N/A | N/A |
| Export Options | Formats not stated on the page we checked; models available at 24 kHz and 48 kHz | Not stated on the page we checked |
Customer Support
| Support Channels | N/A | N/A |
| Priority Support | N/A | N/A |
Find Your Perfect Voice AI Solution
Choosing the right text-to-speech platform impacts user experience and production costs. Let our comparison guide your decision.