Capabilities
Explore what Grok Voice Latest supports, then use the API section for a request tailored to this model.
Languages
Model Information
- Provider
- xAI
- Product
- Conversational
- Release Date
- Oct 14, 2026
- Data Policy
- No training
- Region
- Global
- Input
- Audio
- Output
- Audio
Playground
Try Grok Voice Latest by xAI. Requests use the selected workspace’s credits and API pricing.
Providers
Compare available endpoints, pricing, and context limits for Grok Voice Latest.
| Provider | Context | Output | Input Price | Output Price | Endpoint |
|---|---|---|---|---|---|
| xAI | Not specified | Audio | $0.0425 / minute | — | xai/grok-voice-latest:xai |
Prices are catalog rates. Your workspace’s estimate and endpoint pricing determine the final charge.
Input and Output Limits
Formats and limits AudioLab enforces on each request.
| Limit | Value |
|---|---|
| Input formats | pcm16, g711_ulaw, g711_alaw |
| Output formats | pcm16, g711_ulaw, g711_alaw |
| Max session seconds | 7200 |
Provider Notes
xai/grok-voice-think-fast-1.0 pins the current flagship voice model. xai/grok-voice-latest is a mutable upstream alias and is exact-only. Both use the realtime WebSocket; AudioLab's REST route opens one provider connection and collects a single response. PCM16 supports xAI's documented rates from 8 to 48 kHz, while G.711 uses 8 kHz. xAI bills audio sent and received per minute and bills non-audio conversation.item.create messages separately.
Status
Current catalog availability. Your workspace’s access is checked separately before a request runs.
A live availability check is not available right now.
Getting Started
Use your workspace API key and the exact model identifier below. Set the API URL to the endpoint shown in your workspace and keep credentials on your server.
curl "$AUDIOLAB_API_URL/v1/audio/speech-to-speech" \
-H "Authorization: Bearer $AUDIOLAB_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "xai/grok-voice-latest",
"input_audio": {
"data": "BASE64_AUDIO",
"format": "pcm16",
"sample_rate": 24000,
"channels": 1
},
"output_audio": {
"format": "pcm16",
"sample_rate": 24000
}
}'Request Parameters
Available parameters depend on the provider and request format. The endpoint reference explains accepted values and required fields.
| Parameter | Details |
|---|---|
model | xai/grok-voice-latest — Required model identifier. |
reasoning.effort | View Accepted Values |
resumption | View Accepted Values |
audio input transcription hints / keyterms | View Accepted Values |
audio output speed | View Accepted Values |
server-side and function tools | View Accepted Values |
provider.event (native Voice Agent events) | View Accepted Values |
Input and Output Limits
Formats and limits AudioLab enforces on each request.
| Limit | Value |
|---|---|
| Input formats | pcm16, g711_ulaw, g711_alaw |
| Output formats | pcm16, g711_ulaw, g711_alaw |
| Max session seconds | 7200 |
Similar Models
Explore more conversational and compare their capabilities.
| Model | Context | Input Price | Output Price |
|---|---|---|---|
| Grok Voice Think Fast 1.0xAI | Not specified | $0.0425 / minute | — |
| GPT Realtime 2.1OpenAI | Not specified | $27.20 / 1M tokens | $54.40 / 1M tokens |
| GPT Realtime 2.1 MiniOpenAI | Not specified | $8.50 / 1M tokens | $17.00 / 1M tokens |
| Gemini 3.5 Live TranslateGoogle Gemini | Not specified | $2.975 / 1M tokens | $17.85 / 1M tokens |
| GPT Realtime 2OpenAI | Not specified | $27.20 / 1M tokens | $54.40 / 1M tokens |
| Gemini 3.1 Flash Live PreviewGoogle Gemini | Not specified | $2.55 / 1M tokens | $10.20 / 1M tokens |
