XAI: Grok 4.20

Providers

Available routing options for this model through OneInfer.

Pricing

Current OneInfer pricing for this model.

1. 1

   Generate your access token

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

2. 2

   Add the JWT token

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

3. 3

   Check your credits

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

4. 4

   Run the API example

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

   cURLPythonJavaScriptNode.jsGo

   Copy code

   curl https://staging-api.oneinfer.ai/v1/ula/chat/completions \
     -H "Authorization: Bearer $JWT_TOKEN" \
     -H "Content-Type: application/json" \
     -d '{
       "model": "x-ai/grok-4.20",
       "messages": [
         { "role": "user", "content": "Hello!" }
       ]
     }'