Compare xAI Grok Voice API — Text to Speech with other AI models

See how Grok Voice API — Text to Speech from xAI compares with other AI models on price, context length and features.

Chat with Grok Voice API — Text to Speech

1 model

Grok Voice API — Text to SpeechxAI

xAI's text-to-speech mode, with custom voice support.

Overview

Overview for Grok Voice API — Text to Speech
Metric	Grok Voice API — Text to Speech
Author	xAI
Type	Text to speech
Context length	—
Input modalities	Text
Output modalities	Speech
Served by	xAI via Oxyy
API	OpenAI-compatible/v1/audio/speech

Requests are sent to a healthy provider automatically; if one errors, the gateway retries against another serving the same model.

Pricing

Pricing for Grok Voice API — Text to Speech
Metric	Grok Voice API — Text to Speech
Per 1K characters	$0.006 /1K charsStandard $0.015

Includes the Launch Promo discount (60% off the standard price).

Features

Features for Grok Voice API — Text to Speech
Metric	Grok Voice API — Text to Speech
Streaming	Yes
Image input	No

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How this comparison is built

Prices are what Oxyy charges today; where a discount applies, the standard price is shown beside it. Context window, output limit, modalities and features come from the Oxyy model catalog. Latency, time to first token and throughput are medians measured on Oxyy traffic over the last 7 days (throughput from streaming requests only); a model with too little traffic shows a dash. Benchmark scores appear only with their source and date. Oxyy is an independent API gateway, not affiliated with the model vendors named on this page.