Grok TTS（文字转语音）
xAI 的语音合成模型。经 Cloudflare AI Gateway 调用，免单独 Key，但付费——统一计费、先充值（5% 手续费）、按 xAI 原价透传。模型 id：xai/grok-tts。
Free Grok TTS API
Updated 6/8/2026
xAI text-to-speech via Cloudflare — keyless but paid (AI Gateway Unified Billing: prepaid credits, pass-through pricing).
About the Model
How to call Grok TTS
javascript
const res = await env.AI.run('xai/grok-tts', {
text: 'Hello from Grok on Cloudflare.',
});curl
curl https://api.cloudflare.com/client/v4/accounts/$CF_ACCOUNT_ID/ai/run/xai/grok-tts \
-H "Authorization: Bearer $CF_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{"text":"Hello from Grok on Cloudflare."}' --output speech.mp3Provider Details
The following platforms provide free access to Grok TTS through free tiers, trial credits, or daily quotas.
| Provider | Context Window | Free Quota | Requires CC | Trust | Action |
|---|---|---|---|---|---|
| Cloudflare Workers AI | N/A | Yes | Trust 99 | Details |
Frequently Asked Questions
Is Grok TTS free to use?
Yes. Grok TTS is available for free through 1 provider(s) listed below, with no purchase required.
What are the rate limits and quotas?
Free access varies by provider — Cloudflare Workers AI: paid.
How do I get a free Grok TTS API key?
Sign up with Cloudflare Workers AI, then create an API key from your dashboard. See the provider details above for the exact steps.
Which providers offer Grok TTS for free?
Grok TTS is currently available for free via: Cloudflare Workers AI.
Know another free provider for Grok TTS?
Help the community by sharing other ways to access this model for free.