Speech · text to speech · xAI
xAI grok-voice pricing
Per 1M characters
$15.00
Kind
Text to speech
Ranked 4 of 12 by price among 12 text-to-speech models in the index — the cheapest is Google TTS Standard/WaveNet at $4.00. Figures are USD list prices excluding tax.
Price history
Tracked since 7 September 2026. A chart appears once there are at least two weekly readings.
| Date | Figure | Reading | Change |
|---|---|---|---|
| 2026-09-07 | Price ($/1M chars) | $15.00 | — |
Machine-readable: history.json · Every movement also appears in the change log.
What it costs in practice
Computed from the current figures above. Change the assumptions in the Speech AI cost calculator.
| Workload | Cost |
|---|---|
| One million characters | $15.00 |
| A 4,000-word article (~24,000 chars) | $0.360 |
| A 90,000-word audiobook (~540,000 chars) | $8.10 |
| 1,000 short replies a day for a month (200 chars each) | $90.00 |
Compared with the closest alternatives
| Model | $/1M chars | vs this |
|---|---|---|
| Google TTS Standard/WaveNet | $4.00 | -73% |
| Deepgram Aura-1 | $15.00 | +0% |
| xAI Grok Voice API | $15.00 | +0% |
| Google TTS Neural2 | $16.00 | +7% |
| Mistral AI Voxtral TTS | $16.00 | +7% |
| Google TTS Polyglot | $16.00 | +7% |
| Google TTS Chirp 3 HD | $30.00 | +100% |
| Deepgram Aura-2 | $30.00 | +100% |
How to read this page
The figures are the list prices published on the vendor's own pricing page, re-read every week by an automated check that never invents a number: if the page cannot be read, the previous reading is kept and the item is flagged after three missed weeks. Negotiated rates, volume tiers, free credits and regional pricing are not modelled. The methodology describes the process and its limits; the price index shows every speech figure side by side.