# SpaceXAI: Grok 4.20

- Model id: `x-ai/grok-4.20`
- Served by: -
- List price per 1M tokens, input / output, from: -, with 0% platform fee. A request is billed at the list price of the host that served it.
- Context: 2M, max output 1.8M
- Prices read 2026-11-15 09:33 UTC
- Page: https://plaingateway.com/models/x-ai/grok-4.20

Grok 4.20 is a reasoning model from SpaceXAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...

## Hosts

| Host | Endpoint | In / out /M | Cache read /M | Context | Served |
|---|---|---|---|---|---|
| Xai | `xai` | $1.25 / $2.50 | $0.20 | 2M | no |
| Xai | `xai/zdr` | $1.25 / $2.50 | $0.20 | 2M | no |
| Xai | `xai/priority` | $2.50 / $5.00 | $0.40 | 2M | no |
| Xai | `xai/zdr/priority` | $2.50 / $5.00 | $0.40 | 2M | no |

## First request

```sh
curl https://api.plaingateway.com/api/v1/chat/completions \
  -H "Authorization: Bearer $PLAINGATEWAY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "x-ai/grok-4.20", "messages": [{"role": "user", "content": "Say hello in five words."}]}'
```

Sign up at https://plaingateway.com/signup (no card), create a key, send a test call, and add credits when you want more. New accounts may get a small starting credit. The whole bootstrap for agents: https://plaingateway.com/llms.txt