xAI Text-to-Speech
Expressive API speech with streaming, cloning, and timestamps.
At a glance
- Editor score7.6 / 10
- PricingFrom $15
- Best forExpressive API speech with timestamps
- Commercial useYes
- Founded2023 · Austin, Texas, USA
- Facts checked20 Sep 2026
Where it wins
- Streaming and batch output support flexible generation workflows
- Speech tags add pauses, laughter, whispering, singing, and emphasis
- Voice cloning, pronunciation mappings, and character-level timestamps
Where it doesn't
- API-only access excludes visual and no-code workflows
- Usage-based pricing starts at $15 per 1M characters
- Custom voice cloning requires a reference clip
Our verdict on xAI Text-to-Speech
xAI Text-to-Speech converts text into spoken audio through REST API and WebSocket endpoints. It is aimed at developers and businesses that need programmable speech generation rather than a standalone desktop or browser editor. The service offers built-in expressive voices, custom voice cloning from a reference clip, and support for 20 listed languages through BCP-47 codes. Requests can produce streaming or batch audio, with input of up to 60000 characters.
Its standout capability is expressive, structured control over generated speech. Speech tags support pauses, laughter, whispering, singing, and emphasis, while pronunciation replacement mappings provide a way to adjust how terms are spoken. Character-level timestamps can support synchronization with text or other application events. The API also supports MP3, WAV, PCM, μ-law, and A-law output, plus multiple audio codecs and sample rates. Streaming output uses WebSocket, while standard generation is available through REST.
The published pricing shows one paid plan, Text to Speech API, at $15 per 1M characters. That usage-based model fits applications that can estimate consumption, but it gives buyers no separate monthly tier structure to compare. xAI Text-to-Speech suits teams building voice features, multilingual speech workflows, or applications requiring expressive controls and timing metadata. Teams seeking a visual authoring tool, a no-code workflow, or a broader non-API production environment should choose an alternative instead.
xAI Text-to-Speech pricing
All 1 xAI Text-to-Speech plans and prices →
xAI Text-to-Speech fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Not verified |
| Commercial use | Yes |
| Voice cloning | Yes |
| API access | Yes |
| Languages | 20 languages |
| Maximum input | 60000 characters |
| Export formats | MP3, WAV, PCM, μ-law, A-law |
| Platforms | api |
| Deployment | Cloud |
| Compliance & security | GDPR |
| Support | Email, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | From $15 (source) |
| Website | docs.x.ai |
| Facts checked | 20 Sep 2026 |
Alternatives to xAI Text-to-Speech
- ElevenLabsAffordable voice cloning with multilingual generation, dubbing, streaming, and API access.9.0
- Google Cloud Text-to-SpeechA broad, API-only TTS service for developers building voice-enabled products.7.8
- Azure AI SpeechA broad, production-ready TTS platform for teams building voice applications.6.5
See all xAI Text-to-Speech alternatives →
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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used xAI Text-to-Speech for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
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Guides on Text-to-Speech software
- Best Text-to-Speech Apps for iPhone and iPadAug 2026
- The best text-to-speech tools of 2026: Expert testedAug 2026
- The 8 Best Text-to-Speech Apps for AndroidAug 2026
Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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