XAI: Grok Voice 3.0

One API key. Live prices. Ready-to-run code.

0 is xAI's live speech-to-speech model, released in October 2026. Supports function tools and sessions of up to 120 minutes.

Served on OneInfer by xAI. Use it with the same API key and pay-as-you-go wallet as every other model in the catalog.

ProviderxAIx-ai/grok-voice-3.0

Call Grok Voice 3.0 in 4 steps

Step 1 of 4

Create a key in the Console. The same key works for every model on OneInfer.

OverviewProvidersPricingBenchmarksAPI and quickstartReviews
Context
N/A
Input
audio, text
Output
audio, text
Tool calling
Supported

About this model

Grok Voice 3.0 is xAI's live speech-to-speech model, released in October 2026. Connect to WS /v1/realtime, stream microphone audio in and get spoken replies back with low latency, using the OpenAI Realtime event format. Supports function tools and sessions of up to 120 minutes. Billed per connected minute, plus a small fee per text message.

Input modalities

  • audio

    Accepted as model input

  • text

    Accepted as model input

Providers

Available routing options for this model through OneInfer.

  • xAI
    Available
    Voice session
    $0.080 / minute
    Text input
    $0.0040 / item
    Routing
    OneInfer optimized

Pricing

Current OneInfer pricing for this model.

UsagePrice
Voice sessionREALTIME$0.080 / minute
Text inputREALTIME$0.0040 / item

Performance and benchmarks

Independent evaluations and live cluster operational metrics

We haven’t measured this model yet.

API guide

API docs

  1. Generate your access token

    Use your API key to generate the JWT access token required by the Models API.

  2. Add the JWT token

    Copy the generated JWT token and replace JWT_TOKEN in the example below.

  3. Check your credits

    If your balance is too low, before calling the model.

  4. Run the API example

    Choose your preferred language, copy the example, and send your first model request.

    curl -X POST https://api.oneinfer.ai/v1/ula/generate-audio \
  -H "Authorization: Bearer YOUR_JWT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "x-ai/grok-voice-3.0",
  "prompt": "OneInfer makes AI inference simple.",
  "stream": false,
  "voice_id": "English_expressive_narrator",
  "format": "mp3"
}'

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