xAI
Grok 4.20 Experimental Beta Reasoning Latest
Grok 4.20 Experimental Beta Reasoning Latest is a xAI model. It is priced at $2 per million input tokens and $6 per million output tokens. Access the Grok 4.20 Experimental Beta Reasoning Latest API through Inworld Router or Realtime API.
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Step 1 — Create Router
curl --location 'https://api.inworld.ai/router/v1/routers' \
--header 'Authorization: Basic <your-api-key>' \
--header 'Content-Type: application/json' \
--data '{
"name": "compare-frontier-models",
"defaultRoute": {
"route_id": "default",
"variants": [
{
"variant": {
"variant_id": "xai/grok-4.20-experimental-beta-reasoning-latest-a",
"model_id": "xai/grok-4.20-experimental-beta-reasoning-latest"
},
"weight": 33
},
{
"variant": {
"variant_id": "xai/grok-3-b",
"model_id": "xai/grok-3"
},
"weight": 33
},
{
"variant": {
"variant_id": "xai/grok-3-beta-c",
"model_id": "xai/grok-3-beta"
},
"weight": 34
}
]
}
}'Step 2 — Chat Completion
curl --location 'https://api.inworld.ai/v1/chat/completions' \
--header 'Authorization: Basic <your-api-key>' \
--header 'Content-Type: application/json' \
--data '{
"model": "inworld/compare-frontier-models",
"messages": [{"role": "user", "content": "Hello!"}]
}'Inference providers
Access Grok 4.20 Experimental Beta Reasoning Latest through xAI via Inworld Router or Realtime API.
| Capabilities | Input modalities | Output modalities | |||||
|---|---|---|---|---|---|---|---|
| xAI | — | — | $2.00 | $6.00 | — |
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