Grok 4.20 Beta API
x-ai/grok-4.20-beta
Call Grok 4.20 Beta through UberLLM’s OpenAI-compatible API — from $0.1925/M input and $0.3850/M output, routed automatically to the cheapest healthy seller. xAI · 2,000,000 token context. Fee included.
Grok 4.20 Beta pricing
- Input
- $0.1925
- Output
- $0.385
- Cached input
- $0.0308
- Input
- $1.375
- Output
- $2.75
- Cached input
- $0.22
| Provider | Input | Output | Cached input |
|---|---|---|---|
| OpenRouter | $1.25 | $2.50 | $0.20 |
| Venice AI | $1.42 | $2.83 | $0.23 |
| Bankr | $2.00 | $6.00 | $0.20 |
UberLLM routes every request to the cheapest healthy seller for this model. The price shown includes UberLLM’s 10% fee.
How to use Grok 4.20 Beta with the OpenAI SDK
Already using the OpenAI SDK? Change one line — the base URL — and call Grok 4.20 Beta with your existing code. Anthropic SDKs work against https://api.uberllm.dev/v1/messages.
from openai import OpenAI
client = OpenAI(
base_url="https://api.uberllm.dev/v1",
api_key="ull_your_key_here",
)
resp = client.chat.completions.create(
model="x-ai/grok-4.20-beta",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)Grok 4.20 Beta API — FAQ
How much does the Grok 4.20 Beta API cost?
Grok 4.20 Beta is listed from $0.1925 per million input tokens and $0.3850 per million output tokens through UberLLM, which routes each request to the cheapest healthy seller on a live marketplace and bills the price shown, which includes UberLLM's 10% fee.
How do I call Grok 4.20 Beta via API?
Use any OpenAI-compatible SDK: set the base URL to https://api.uberllm.dev/v1, your UberLLM API key, and model "x-ai/grok-4.20-beta". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.
Is Grok 4.20 Beta OpenAI-compatible on UberLLM?
Yes. Every model on UberLLM — including Grok 4.20 Beta — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.